RHSA-2025:22752
Vulnerability from csaf_redhat - Published: 2025-12-04 12:50 - Updated: 2026-03-25 18:09Summary
Red Hat Security Advisory: kernel security update
Severity
Moderate
Notes
Topic: An update for kernel is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: ALSA: usb-audio: ALSA USB Audio Out-of-Bounds Bug (CVE-2022-48701)
* kernel: nfsd: don't ignore the return code of svc_proc_register() (CVE-2025-22026)
* kernel: udp: Fix memory accounting leak. (CVE-2025-22058)
* kernel: net_sched: hfsc: Fix a UAF vulnerability in class handling (CVE-2025-37797)
* kernel: net: usb: smsc75xx: Limit packet length to skb->len (CVE-2023-53125)
* kernel: net_sched: ets: Fix double list add in class with netem as child qdisc (CVE-2025-37914)
* kernel: ASoC: SOF: Intel: hda: Fix potential buffer overflow by snprintf() (CVE-2022-50050)
* kernel: mptcp: do not queue data on closed subflows (CVE-2022-50070)
* kernel: ALSA: bcd2000: Fix a UAF bug on the error path of probing (CVE-2022-50229)
* kernel: KVM: SVM: Don't BUG if userspace injects an interrupt with GIF=0 (CVE-2022-50228)
* kernel: firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails (CVE-2022-50087)
* kernel: bpf: Don't use tnum_range on array range checking for poke descriptors (CVE-2022-49985)
* kernel: drm/amd/display: clear optc underflow before turn off odm clock (CVE-2022-49969)
* kernel: md-raid10: fix KASAN warning (CVE-2022-50211)
* kernel: i40e: fix MMIO write access to an invalid page in i40e_clear_hw (CVE-2025-38200)
* kernel: RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction (CVE-2025-38211)
* kernel: scsi: lpfc: Use memcpy() for BIOS version (CVE-2025-38332)
* kernel: vsock: Fix transport_* TOCTOU (CVE-2025-38461)
* kernel: drm/gem: Acquire references on GEM handles for framebuffers (CVE-2025-38449)
* kernel: net/sched: sch_qfq: Fix race condition on qfq_aggregate (CVE-2025-38477)
* kernel: do_change_type(): refuse to operate on unmounted/not ours mounts (CVE-2025-38498)
* kernel: smb: client: fix use-after-free in cifs_oplock_break (CVE-2025-38527)
* kernel: HID: core: Harden s32ton() against conversion to 0 bits (CVE-2025-38556)
* kernel: tls: separate no-async decryption request handling from async (CVE-2024-58240)
* kernel: NFS: Fix a race when updating an existing write (CVE-2025-39697)
* kernel: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry() (CVE-2025-39730)
* kernel: ALSA: hda/ca0132: Fix buffer overflow in add_tuning_control (CVE-2025-39751)
* kernel: wifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies() (CVE-2023-53213)
* kernel: wifi: ath9k: don't allow to overwrite ENDPOINT0 attributes (CVE-2023-53185)
* kernel: mm: fix zswap writeback race condition (CVE-2023-53178)
* kernel: Bluetooth: L2CAP: Fix use-after-free (CVE-2023-53305)
* kernel: fs: fix UAF/GPF bug in nilfs_mdt_destroy (CVE-2022-50367)
* kernel: net: sched: sfb: fix null pointer access issue when sfb_init() fails (CVE-2022-50356)
* kernel: skbuff: skb_segment, Call zero copy functions before using skbuff frags (CVE-2023-53354)
* kernel: crypto: seqiv - Handle EBUSY correctly (CVE-2023-53373)
* kernel: Bluetooth: Fix potential use-after-free when clear keys (CVE-2023-53386)
* kernel: Bluetooth: L2CAP: Fix user-after-free (CVE-2022-50386)
* kernel: ext4: fix undefined behavior in bit shift for ext4_check_flag_values (CVE-2022-50403)
* kernel: wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit() (CVE-2022-50408)
* kernel: NFSD: Protect against send buffer overflow in NFSv2 READ (CVE-2022-50410)
* kernel: wifi: cfg80211: fix use-after-free in cmp_bss() (CVE-2025-39864)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
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A flaw was found in the Linux kernel ALSA USB audio driver. This vulnerability allows a denial of service via a crafted USB audio device.
4.9 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: clear optc underflow before turn off odm clock [Why] After ODM clock off, optc underflow bit will be kept there always and clear not work. We need to clear that before clock off. [How] Clear that if have when clock off.
7.0 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
In the Linux kernel, the following vulnerability has been resolved: bpf: Don't use tnum_range on array range checking for poke descriptors Hsin-Wei reported a KASAN splat triggered by their BPF runtime fuzzer which is based on a customized syzkaller: BUG: KASAN: slab-out-of-bounds in bpf_int_jit_compile+0x1257/0x13f0 Read of size 8 at addr ffff888004e90b58 by task syz-executor.0/1489 CPU: 1 PID: 1489 Comm: syz-executor.0 Not tainted 5.19.0 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x9c/0xc9 print_address_description.constprop.0+0x1f/0x1f0 ? bpf_int_jit_compile+0x1257/0x13f0 kasan_report.cold+0xeb/0x197 ? kvmalloc_node+0x170/0x200 ? bpf_int_jit_compile+0x1257/0x13f0 bpf_int_jit_compile+0x1257/0x13f0 ? arch_prepare_bpf_dispatcher+0xd0/0xd0 ? rcu_read_lock_sched_held+0x43/0x70 bpf_prog_select_runtime+0x3e8/0x640 ? bpf_obj_name_cpy+0x149/0x1b0 bpf_prog_load+0x102f/0x2220 ? __bpf_prog_put.constprop.0+0x220/0x220 ? find_held_lock+0x2c/0x110 ? __might_fault+0xd6/0x180 ? lock_downgrade+0x6e0/0x6e0 ? lock_is_held_type+0xa6/0x120 ? __might_fault+0x147/0x180 __sys_bpf+0x137b/0x6070 ? bpf_perf_link_attach+0x530/0x530 ? new_sync_read+0x600/0x600 ? __fget_files+0x255/0x450 ? lock_downgrade+0x6e0/0x6e0 ? fput+0x30/0x1a0 ? ksys_write+0x1a8/0x260 __x64_sys_bpf+0x7a/0xc0 ? syscall_enter_from_user_mode+0x21/0x70 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f917c4e2c2d The problem here is that a range of tnum_range(0, map->max_entries - 1) has limited ability to represent the concrete tight range with the tnum as the set of resulting states from value + mask can result in a superset of the actual intended range, and as such a tnum_in(range, reg->var_off) check may yield true when it shouldn't, for example tnum_range(0, 2) would result in 00XX -> v = 0000, m = 0011 such that the intended set of {0, 1, 2} is here represented by a less precise superset of {0, 1, 2, 3}. As the register is known const scalar, really just use the concrete reg->var_off.value for the upper index check.
7.0 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: Intel: hda: Fix potential buffer overflow by snprintf() snprintf() returns the would-be-filled size when the string overflows the given buffer size, hence using this value may result in the buffer overflow (although it's unrealistic). This patch replaces with a safer version, scnprintf() for papering over such a potential issue.
7.0 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
In the Linux kernel, the following vulnerability has been resolved: mptcp: do not queue data on closed subflows Dipanjan reported a syzbot splat at close time: WARNING: CPU: 1 PID: 10818 at net/ipv4/af_inet.c:153 inet_sock_destruct+0x6d0/0x8e0 net/ipv4/af_inet.c:153 Modules linked in: uio_ivshmem(OE) uio(E) CPU: 1 PID: 10818 Comm: kworker/1:16 Tainted: G OE 5.19.0-rc6-g2eae0556bb9d #2 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 Workqueue: events mptcp_worker RIP: 0010:inet_sock_destruct+0x6d0/0x8e0 net/ipv4/af_inet.c:153 Code: 21 02 00 00 41 8b 9c 24 28 02 00 00 e9 07 ff ff ff e8 34 4d 91 f9 89 ee 4c 89 e7 e8 4a 47 60 ff e9 a6 fc ff ff e8 20 4d 91 f9 <0f> 0b e9 84 fe ff ff e8 14 4d 91 f9 0f 0b e9 d4 fd ff ff e8 08 4d RSP: 0018:ffffc9001b35fa78 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00000000002879d0 RCX: ffff8881326f3b00 RDX: 0000000000000000 RSI: ffff8881326f3b00 RDI: 0000000000000002 RBP: ffff888179662674 R08: ffffffff87e983a0 R09: 0000000000000000 R10: 0000000000000005 R11: 00000000000004ea R12: ffff888179662400 R13: ffff888179662428 R14: 0000000000000001 R15: ffff88817e38e258 FS: 0000000000000000(0000) GS:ffff8881f5f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020007bc0 CR3: 0000000179592000 CR4: 0000000000150ee0 Call Trace: <TASK> __sk_destruct+0x4f/0x8e0 net/core/sock.c:2067 sk_destruct+0xbd/0xe0 net/core/sock.c:2112 __sk_free+0xef/0x3d0 net/core/sock.c:2123 sk_free+0x78/0xa0 net/core/sock.c:2134 sock_put include/net/sock.h:1927 [inline] __mptcp_close_ssk+0x50f/0x780 net/mptcp/protocol.c:2351 __mptcp_destroy_sock+0x332/0x760 net/mptcp/protocol.c:2828 mptcp_worker+0x5d2/0xc90 net/mptcp/protocol.c:2586 process_one_work+0x9cc/0x1650 kernel/workqueue.c:2289 worker_thread+0x623/0x1070 kernel/workqueue.c:2436 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302 </TASK> The root cause of the problem is that an mptcp-level (re)transmit can race with mptcp_close() and the packet scheduler checks the subflow state before acquiring the socket lock: we can try to (re)transmit on an already closed ssk. Fix the issue checking again the subflow socket status under the subflow socket lock protection. Additionally add the missing check for the fallback-to-tcp case.
7.0 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails When scpi probe fails, at any point, we need to ensure that the scpi_info is not set and will remain NULL until the probe succeeds. If it is not taken care, then it could result use-after-free as the value is exported via get_scpi_ops() and could refer to a memory allocated via devm_kzalloc() but freed when the probe fails.
7.0 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
In the Linux kernel, the following vulnerability has been resolved: md-raid10: fix KASAN warning There's a KASAN warning in raid10_remove_disk when running the lvm test lvconvert-raid-reshape.sh. We fix this warning by verifying that the value "number" is valid. BUG: KASAN: slab-out-of-bounds in raid10_remove_disk+0x61/0x2a0 [raid10] Read of size 8 at addr ffff889108f3d300 by task mdX_raid10/124682 CPU: 3 PID: 124682 Comm: mdX_raid10 Not tainted 5.19.0-rc6 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x34/0x44 print_report.cold+0x45/0x57a ? __lock_text_start+0x18/0x18 ? raid10_remove_disk+0x61/0x2a0 [raid10] kasan_report+0xa8/0xe0 ? raid10_remove_disk+0x61/0x2a0 [raid10] raid10_remove_disk+0x61/0x2a0 [raid10] Buffer I/O error on dev dm-76, logical block 15344, async page read ? __mutex_unlock_slowpath.constprop.0+0x1e0/0x1e0 remove_and_add_spares+0x367/0x8a0 [md_mod] ? super_written+0x1c0/0x1c0 [md_mod] ? mutex_trylock+0xac/0x120 ? _raw_spin_lock+0x72/0xc0 ? _raw_spin_lock_bh+0xc0/0xc0 md_check_recovery+0x848/0x960 [md_mod] raid10d+0xcf/0x3360 [raid10] ? sched_clock_cpu+0x185/0x1a0 ? rb_erase+0x4d4/0x620 ? var_wake_function+0xe0/0xe0 ? psi_group_change+0x411/0x500 ? preempt_count_sub+0xf/0xc0 ? _raw_spin_lock_irqsave+0x78/0xc0 ? __lock_text_start+0x18/0x18 ? raid10_sync_request+0x36c0/0x36c0 [raid10] ? preempt_count_sub+0xf/0xc0 ? _raw_spin_unlock_irqrestore+0x19/0x40 ? del_timer_sync+0xa9/0x100 ? try_to_del_timer_sync+0xc0/0xc0 ? _raw_spin_lock_irqsave+0x78/0xc0 ? __lock_text_start+0x18/0x18 ? _raw_spin_unlock_irq+0x11/0x24 ? __list_del_entry_valid+0x68/0xa0 ? finish_wait+0xa3/0x100 md_thread+0x161/0x260 [md_mod] ? unregister_md_personality+0xa0/0xa0 [md_mod] ? _raw_spin_lock_irqsave+0x78/0xc0 ? prepare_to_wait_event+0x2c0/0x2c0 ? unregister_md_personality+0xa0/0xa0 [md_mod] kthread+0x148/0x180 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x1f/0x30 </TASK> Allocated by task 124495: kasan_save_stack+0x1e/0x40 __kasan_kmalloc+0x80/0xa0 setup_conf+0x140/0x5c0 [raid10] raid10_run+0x4cd/0x740 [raid10] md_run+0x6f9/0x1300 [md_mod] raid_ctr+0x2531/0x4ac0 [dm_raid] dm_table_add_target+0x2b0/0x620 [dm_mod] table_load+0x1c8/0x400 [dm_mod] ctl_ioctl+0x29e/0x560 [dm_mod] dm_compat_ctl_ioctl+0x7/0x20 [dm_mod] __do_compat_sys_ioctl+0xfa/0x160 do_syscall_64+0x90/0xc0 entry_SYSCALL_64_after_hwframe+0x46/0xb0 Last potentially related work creation: kasan_save_stack+0x1e/0x40 __kasan_record_aux_stack+0x9e/0xc0 kvfree_call_rcu+0x84/0x480 timerfd_release+0x82/0x140 L __fput+0xfa/0x400 task_work_run+0x80/0xc0 exit_to_user_mode_prepare+0x155/0x160 syscall_exit_to_user_mode+0x12/0x40 do_syscall_64+0x42/0xc0 entry_SYSCALL_64_after_hwframe+0x46/0xb0 Second to last potentially related work creation: kasan_save_stack+0x1e/0x40 __kasan_record_aux_stack+0x9e/0xc0 kvfree_call_rcu+0x84/0x480 timerfd_release+0x82/0x140 __fput+0xfa/0x400 task_work_run+0x80/0xc0 exit_to_user_mode_prepare+0x155/0x160 syscall_exit_to_user_mode+0x12/0x40 do_syscall_64+0x42/0xc0 entry_SYSCALL_64_after_hwframe+0x46/0xb0 The buggy address belongs to the object at ffff889108f3d200 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 0 bytes to the right of 256-byte region [ffff889108f3d200, ffff889108f3d300) The buggy address belongs to the physical page: page:000000007ef2a34c refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1108f3c head:000000007ef2a34c order:2 compound_mapcount:0 compound_pincount:0 flags: 0x4000000000010200(slab|head|zone=2) raw: 4000000000010200 0000000000000000 dead000000000001 ffff889100042b40 raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff889108f3d200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff889108f3d280: 00 00 ---truncated---
7.0 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Don't BUG if userspace injects an interrupt with GIF=0 Don't BUG/WARN on interrupt injection due to GIF being cleared, since it's trivial for userspace to force the situation via KVM_SET_VCPU_EVENTS (even if having at least a WARN there would be correct for KVM internally generated injections). kernel BUG at arch/x86/kvm/svm/svm.c:3386! invalid opcode: 0000 [#1] SMP CPU: 15 PID: 926 Comm: smm_test Not tainted 5.17.0-rc3+ #264 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015 RIP: 0010:svm_inject_irq+0xab/0xb0 [kvm_amd] Code: <0f> 0b 0f 1f 00 0f 1f 44 00 00 80 3d ac b3 01 00 00 55 48 89 f5 53 RSP: 0018:ffffc90000b37d88 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88810a234ac0 RCX: 0000000000000006 RDX: 0000000000000000 RSI: ffffc90000b37df7 RDI: ffff88810a234ac0 RBP: ffffc90000b37df7 R08: ffff88810a1fa410 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff888109571000 R14: ffff88810a234ac0 R15: 0000000000000000 FS: 0000000001821380(0000) GS:ffff88846fdc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f74fc550008 CR3: 000000010a6fe000 CR4: 0000000000350ea0 Call Trace: <TASK> inject_pending_event+0x2f7/0x4c0 [kvm] kvm_arch_vcpu_ioctl_run+0x791/0x17a0 [kvm] kvm_vcpu_ioctl+0x26d/0x650 [kvm] __x64_sys_ioctl+0x82/0xb0 do_syscall_64+0x3b/0xc0 entry_SYSCALL_64_after_hwframe+0x44/0xae </TASK>
7.0 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
In the Linux kernel, the following vulnerability has been resolved: ALSA: bcd2000: Fix a UAF bug on the error path of probing When the driver fails in snd_card_register() at probe time, it will free the 'bcd2k->midi_out_urb' before killing it, which may cause a UAF bug. The following log can reveal it: [ 50.727020] BUG: KASAN: use-after-free in bcd2000_input_complete+0x1f1/0x2e0 [snd_bcd2000] [ 50.727623] Read of size 8 at addr ffff88810fab0e88 by task swapper/4/0 [ 50.729530] Call Trace: [ 50.732899] bcd2000_input_complete+0x1f1/0x2e0 [snd_bcd2000] Fix this by adding usb_kill_urb() before usb_free_urb().
7.0 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
A null pointer dereference exists in the linux kernel, such that when sfb_init() fails qdisc is NULL, and it will cause gpf issue, leading to damage to the availability of the system.
7.0 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
Workaround
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
In the Linux kernel, the following vulnerability has been resolved: fs: fix UAF/GPF bug in nilfs_mdt_destroy In alloc_inode, inode_init_always() could return -ENOMEM if security_inode_alloc() fails, which causes inode->i_private uninitialized. Then nilfs_is_metadata_file_inode() returns true and nilfs_free_inode() wrongly calls nilfs_mdt_destroy(), which frees the uninitialized inode->i_private and leads to crashes(e.g., UAF/GPF). Fix this by moving security_inode_alloc just prior to this_cpu_inc(nr_inodes)
7.0 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
Workaround
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix user-after-free This uses l2cap_chan_hold_unless_zero() after calling __l2cap_get_chan_blah() to prevent the following trace: Bluetooth: l2cap_core.c:static void l2cap_chan_destroy(struct kref *kref) Bluetooth: chan 0000000023c4974d Bluetooth: parent 00000000ae861c08 ================================================================== BUG: KASAN: use-after-free in __mutex_waiter_is_first kernel/locking/mutex.c:191 [inline] BUG: KASAN: use-after-free in __mutex_lock_common kernel/locking/mutex.c:671 [inline] BUG: KASAN: use-after-free in __mutex_lock+0x278/0x400 kernel/locking/mutex.c:729 Read of size 8 at addr ffff888006a49b08 by task kworker/u3:2/389
7.6 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
Workaround
To mitigate these vulnerabilities on the operating system level, disable the Bluetooth functionality via blocklisting kernel modules in the Linux kernel. The kernel modules can be prevented from being loaded by using system-wide modprobe rules. Instructions on how to disable Bluetooth modules are available on the customer portal at https://access.redhat.com/solutions/2682931.
Alternatively, bluetooth can be disabled within the hardware or at the BIOS level, which will also provide effective mitigation as the kernel will not detect Bluetooth hardware on the system.
A vulnerability was identified in the Linux kernel's ext4 filesystem implementation due to a flaw in how it processes filesystem metadata. An attacker with local privileges could create a malicious ext4 filesystem image to trigger this issue. When the system attempts to mount this malicious image, the kernel performs an incorrect calculation. This action results in unpredictable system behavior.
7.0 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
A use after free exists in the wifi module of the linux kernel in the function brcmf_netdev_start_xmit(),thereby leading to damage to system availability and integrity.
7.8 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
Workaround
To mitigate this issue, prevent module brcmfmac from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.
In the Linux kernel, the following vulnerability has been resolved: NFSD: Protect against send buffer overflow in NFSv2 READ Since before the git era, NFSD has conserved the number of pages held by each nfsd thread by combining the RPC receive and send buffers into a single array of pages. This works because there are no cases where an operation needs a large RPC Call message and a large RPC Reply at the same time. Once an RPC Call has been received, svc_process() updates svc_rqst::rq_res to describe the part of rq_pages that can be used for constructing the Reply. This means that the send buffer (rq_res) shrinks when the received RPC record containing the RPC Call is large. A client can force this shrinkage on TCP by sending a correctly- formed RPC Call header contained in an RPC record that is excessively large. The full maximum payload size cannot be constructed in that case.
7.1 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
In the Linux kernel, the following vulnerability has been resolved: net: usb: smsc75xx: Limit packet length to skb->len Packet length retrieved from skb data may be larger than the actual socket buffer length (up to 9026 bytes). In such case the cloned skb passed up the network stack will leak kernel memory contents.
7.5 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
Workaround
To mitigate this issue, prevent module smsc75xx from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.
In the Linux kernel, the following vulnerability has been resolved: mm: fix zswap writeback race condition The zswap writeback mechanism can cause a race condition resulting in memory corruption, where a swapped out page gets swapped in with data that was written to a different page. The race unfolds like this: 1. a page with data A and swap offset X is stored in zswap 2. page A is removed off the LRU by zpool driver for writeback in zswap-shrink work, data for A is mapped by zpool driver 3. user space program faults and invalidates page entry A, offset X is considered free 4. kswapd stores page B at offset X in zswap (zswap could also be full, if so, page B would then be IOed to X, then skip step 5.) 5. entry A is replaced by B in tree->rbroot, this doesn't affect the local reference held by zswap-shrink work 6. zswap-shrink work writes back A at X, and frees zswap entry A 7. swapin of slot X brings A in memory instead of B The fix: Once the swap page cache has been allocated (case ZSWAP_SWAPCACHE_NEW), zswap-shrink work just checks that the local zswap_entry reference is still the same as the one in the tree. If it's not the same it means that it's either been invalidated or replaced, in both cases the writeback is aborted because the local entry contains stale data. Reproducer: I originally found this by running `stress` overnight to validate my work on the zswap writeback mechanism, it manifested after hours on my test machine. The key to make it happen is having zswap writebacks, so whatever setup pumps /sys/kernel/debug/zswap/written_back_pages should do the trick. In order to reproduce this faster on a vm, I setup a system with ~100M of available memory and a 500M swap file, then running `stress --vm 1 --vm-bytes 300000000 --vm-stride 4000` makes it happen in matter of tens of minutes. One can speed things up even more by swinging /sys/module/zswap/parameters/max_pool_percent up and down between, say, 20 and 1; this makes it reproduce in tens of seconds. It's crucial to set `--vm-stride` to something other than 4096 otherwise `stress` won't realize that memory has been corrupted because all pages would have the same data.
7.3 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: don't allow to overwrite ENDPOINT0 attributes A bad USB device is able to construct a service connection response message with target endpoint being ENDPOINT0 which is reserved for HTC_CTRL_RSVD_SVC and should not be modified to be used for any other services. Reject such service connection responses. Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
7.0 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies() Fix a slab-out-of-bounds read that occurs in kmemdup() called from brcmf_get_assoc_ies(). The bug could occur when assoc_info->req_len, data from a URB provided by a USB device, is bigger than the size of buffer which is defined as WL_EXTRA_BUF_MAX. Add the size check for req_len/resp_len of assoc_info. Found by a modified version of syzkaller. [ 46.592467][ T7] ================================================================== [ 46.594687][ T7] BUG: KASAN: slab-out-of-bounds in kmemdup+0x3e/0x50 [ 46.596572][ T7] Read of size 3014656 at addr ffff888019442000 by task kworker/0:1/7 [ 46.598575][ T7] [ 46.599157][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Tainted: G O 5.14.0+ #145 [ 46.601333][ T7] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014 [ 46.604360][ T7] Workqueue: events brcmf_fweh_event_worker [ 46.605943][ T7] Call Trace: [ 46.606584][ T7] dump_stack_lvl+0x8e/0xd1 [ 46.607446][ T7] print_address_description.constprop.0.cold+0x93/0x334 [ 46.608610][ T7] ? kmemdup+0x3e/0x50 [ 46.609341][ T7] kasan_report.cold+0x79/0xd5 [ 46.610151][ T7] ? kmemdup+0x3e/0x50 [ 46.610796][ T7] kasan_check_range+0x14e/0x1b0 [ 46.611691][ T7] memcpy+0x20/0x60 [ 46.612323][ T7] kmemdup+0x3e/0x50 [ 46.612987][ T7] brcmf_get_assoc_ies+0x967/0xf60 [ 46.613904][ T7] ? brcmf_notify_vif_event+0x3d0/0x3d0 [ 46.614831][ T7] ? lock_chain_count+0x20/0x20 [ 46.615683][ T7] ? mark_lock.part.0+0xfc/0x2770 [ 46.616552][ T7] ? lock_chain_count+0x20/0x20 [ 46.617409][ T7] ? mark_lock.part.0+0xfc/0x2770 [ 46.618244][ T7] ? lock_chain_count+0x20/0x20 [ 46.619024][ T7] brcmf_bss_connect_done.constprop.0+0x241/0x2e0 [ 46.620019][ T7] ? brcmf_parse_configure_security.isra.0+0x2a0/0x2a0 [ 46.620818][ T7] ? __lock_acquire+0x181f/0x5790 [ 46.621462][ T7] brcmf_notify_connect_status+0x448/0x1950 [ 46.622134][ T7] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 46.622736][ T7] ? brcmf_cfg80211_join_ibss+0x7b0/0x7b0 [ 46.623390][ T7] ? find_held_lock+0x2d/0x110 [ 46.623962][ T7] ? brcmf_fweh_event_worker+0x19f/0xc60 [ 46.624603][ T7] ? mark_held_locks+0x9f/0xe0 [ 46.625145][ T7] ? lockdep_hardirqs_on_prepare+0x3e0/0x3e0 [ 46.625871][ T7] ? brcmf_cfg80211_join_ibss+0x7b0/0x7b0 [ 46.626545][ T7] brcmf_fweh_call_event_handler.isra.0+0x90/0x100 [ 46.627338][ T7] brcmf_fweh_event_worker+0x557/0xc60 [ 46.627962][ T7] ? brcmf_fweh_call_event_handler.isra.0+0x100/0x100 [ 46.628736][ T7] ? rcu_read_lock_sched_held+0xa1/0xd0 [ 46.629396][ T7] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 46.629970][ T7] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 46.630649][ T7] process_one_work+0x92b/0x1460 [ 46.631205][ T7] ? pwq_dec_nr_in_flight+0x330/0x330 [ 46.631821][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 46.632347][ T7] worker_thread+0x95/0xe00 [ 46.632832][ T7] ? __kthread_parkme+0x115/0x1e0 [ 46.633393][ T7] ? process_one_work+0x1460/0x1460 [ 46.633957][ T7] kthread+0x3a1/0x480 [ 46.634369][ T7] ? set_kthread_struct+0x120/0x120 [ 46.634933][ T7] ret_from_fork+0x1f/0x30 [ 46.635431][ T7] [ 46.635687][ T7] Allocated by task 7: [ 46.636151][ T7] kasan_save_stack+0x1b/0x40 [ 46.636628][ T7] __kasan_kmalloc+0x7c/0x90 [ 46.637108][ T7] kmem_cache_alloc_trace+0x19e/0x330 [ 46.637696][ T7] brcmf_cfg80211_attach+0x4a0/0x4040 [ 46.638275][ T7] brcmf_attach+0x389/0xd40 [ 46.638739][ T7] brcmf_usb_probe+0x12de/0x1690 [ 46.639279][ T7] usb_probe_interface+0x2aa/0x760 [ 46.639820][ T7] really_probe+0x205/0xb70 [ 46.640342][ T7] __driver_probe_device+0 ---truncated---
7.0 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix use-after-free Fix potential use-after-free in l2cap_le_command_rej.
7.6 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
Workaround
To mitigate these vulnerabilities on the operating system level, disable the Bluetooth functionality via blocklisting kernel modules in the Linux kernel. The kernel modules can be prevented from being loaded by using system-wide modprobe rules. Instructions on how to disable Bluetooth modules are available on the customer portal at https://access.redhat.com/solutions/2682931.
Alternatively, bluetooth can be disabled within the hardware or at the BIOS level, which will also provide effective mitigation as the kernel will not detect Bluetooth hardware on the system.
In the Linux kernel, the following vulnerability has been resolved: skbuff: skb_segment, Call zero copy functions before using skbuff frags Commit bf5c25d60861 ("skbuff: in skb_segment, call zerocopy functions once per nskb") added the call to zero copy functions in skb_segment(). The change introduced a bug in skb_segment() because skb_orphan_frags() may possibly change the number of fragments or allocate new fragments altogether leaving nrfrags and frag to point to the old values. This can cause a panic with stacktrace like the one below. [ 193.894380] BUG: kernel NULL pointer dereference, address: 00000000000000bc [ 193.895273] CPU: 13 PID: 18164 Comm: vh-net-17428 Kdump: loaded Tainted: G O 5.15.123+ #26 [ 193.903919] RIP: 0010:skb_segment+0xb0e/0x12f0 [ 194.021892] Call Trace: [ 194.027422] <TASK> [ 194.072861] tcp_gso_segment+0x107/0x540 [ 194.082031] inet_gso_segment+0x15c/0x3d0 [ 194.090783] skb_mac_gso_segment+0x9f/0x110 [ 194.095016] __skb_gso_segment+0xc1/0x190 [ 194.103131] netem_enqueue+0x290/0xb10 [sch_netem] [ 194.107071] dev_qdisc_enqueue+0x16/0x70 [ 194.110884] __dev_queue_xmit+0x63b/0xb30 [ 194.121670] bond_start_xmit+0x159/0x380 [bonding] [ 194.128506] dev_hard_start_xmit+0xc3/0x1e0 [ 194.131787] __dev_queue_xmit+0x8a0/0xb30 [ 194.138225] macvlan_start_xmit+0x4f/0x100 [macvlan] [ 194.141477] dev_hard_start_xmit+0xc3/0x1e0 [ 194.144622] sch_direct_xmit+0xe3/0x280 [ 194.147748] __dev_queue_xmit+0x54a/0xb30 [ 194.154131] tap_get_user+0x2a8/0x9c0 [tap] [ 194.157358] tap_sendmsg+0x52/0x8e0 [tap] [ 194.167049] handle_tx_zerocopy+0x14e/0x4c0 [vhost_net] [ 194.173631] handle_tx+0xcd/0xe0 [vhost_net] [ 194.176959] vhost_worker+0x76/0xb0 [vhost] [ 194.183667] kthread+0x118/0x140 [ 194.190358] ret_from_fork+0x1f/0x30 [ 194.193670] </TASK> In this case calling skb_orphan_frags() updated nr_frags leaving nrfrags local variable in skb_segment() stale. This resulted in the code hitting i >= nrfrags prematurely and trying to move to next frag_skb using list_skb pointer, which was NULL, and caused kernel panic. Move the call to zero copy functions before using frags and nr_frags.
7.0 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
In the Linux kernel, the following vulnerability has been resolved: crypto: seqiv - Handle EBUSY correctly As it is seqiv only handles the special return value of EINPROGERSS, which means that in all other cases it will free data related to the request. However, as the caller of seqiv may specify MAY_BACKLOG, we also need to expect EBUSY and treat it in the same way. Otherwise backlogged requests will trigger a use-after-free.
7.1 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
Workaround
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix potential use-after-free when clear keys Similar to commit c5d2b6fa26b5 ("Bluetooth: Fix use-after-free in hci_remove_ltk/hci_remove_irk"). We can not access k after kfree_rcu() call.
7.1 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
Workaround
To mitigate these vulnerabilities on the operating system level, disable the Bluetooth functionality via blocklisting kernel modules in the Linux kernel. The kernel modules can be prevented from being loaded by using system-wide modprobe rules. Instructions on how to disable Bluetooth modules are available on the customer portal at https://access.redhat.com/solutions/2682931.
Alternatively, bluetooth can be disabled within the hardware or at the BIOS level, which will also provide effective mitigation as the kernel will not detect Bluetooth hardware on the system.
In the Linux kernel, the following vulnerability has been resolved: tls: separate no-async decryption request handling from async If we're not doing async, the handling is much simpler. There's no reference counting, we just need to wait for the completion to wake us up and return its result. We should preferably also use a separate crypto_wait. I'm not seeing a UAF as I did in the past, I think aec7961916f3 ("tls: fix race between async notify and socket close") took care of it. This will make the next fix easier.
7.3 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
Workaround
To mitigate this issue, prevent module tls from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.
In the Linux kernel, the following vulnerability has been resolved: nfsd: don't ignore the return code of svc_proc_register() Currently, nfsd_proc_stat_init() ignores the return value of svc_proc_register(). If the procfile creation fails, then the kernel will WARN when it tries to remove the entry later. Fix nfsd_proc_stat_init() to return the same type of pointer as svc_proc_register(), and fix up nfsd_net_init() to check that and fail the nfsd_net construction if it occurs. svc_proc_register() can fail if the dentry can't be allocated, or if an identical dentry already exists. The second case is pretty unlikely in the nfsd_net construction codepath, so if this happens, return -ENOMEM.
7.1 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
A memory overflow vulnerability exists within the Linux kernel's networking subsystem. Specifically, an application can set the SO_RCVBUF socket option to its maximum value (INT_MAX), which triggers an integer overflow within the udp_rmem_release() function during socket closure. The udp_destruct_common() purges its receive queue and sums up skb->truesize in the queue. This total is calculated and stored in a local unsigned integer variable. The total size is then passed to udp_rmem_release() to adjust memory accounting. Due to the function taking a signed integer argument, the total size can wrap around, causing a memory overflow condition, potentially leading to system instability.
7.1 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
Workaround
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
In the Linux kernel, the following vulnerability has been resolved: net_sched: hfsc: Fix a UAF vulnerability in class handling This patch fixes a Use-After-Free vulnerability in the HFSC qdisc class handling. The issue occurs due to a time-of-check/time-of-use condition in hfsc_change_class() when working with certain child qdiscs like netem or codel. The vulnerability works as follows: 1. hfsc_change_class() checks if a class has packets (q.qlen != 0) 2. It then calls qdisc_peek_len(), which for certain qdiscs (e.g., codel, netem) might drop packets and empty the queue 3. The code continues assuming the queue is still non-empty, adding the class to vttree 4. This breaks HFSC scheduler assumptions that only non-empty classes are in vttree 5. Later, when the class is destroyed, this can lead to a Use-After-Free The fix adds a second queue length check after qdisc_peek_len() to verify the queue wasn't emptied.
7.0 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
Workaround
To mitigate this issue, prevent module sch_hfsc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.
A use-after-free vulnerability was found in the Linux kernel’s `netem` qdisc. This issue occurs when it incorrectly manages duplicated packets in classful parent qdiscs. This leads to a corrupted internal state and eventual dereferencing of freed memory, resulting in unpredictable behavior, system instability, or a crash.
7.0 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
Workaround
If ETS (Enhanced Transmission Selection) scheduler not being used, then the mitigation would be to disabled related Kernel module.
To mitigate this issue, prevent module sch_ets from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.
sch_ets
In the Linux kernel, the following vulnerability has been resolved: i40e: fix MMIO write access to an invalid page in i40e_clear_hw When the device sends a specific input, an integer underflow can occur, leading to MMIO write access to an invalid page. Prevent the integer underflow by changing the type of related variables.
7.0 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
In the Linux kernel, the following vulnerability has been resolved: RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction The commit 59c68ac31e15 ("iw_cm: free cm_id resources on the last deref") simplified cm_id resource management by freeing cm_id once all references to the cm_id were removed. The references are removed either upon completion of iw_cm event handlers or when the application destroys the cm_id. This commit introduced the use-after-free condition where cm_id_private object could still be in use by event handler works during the destruction of cm_id. The commit aee2424246f9 ("RDMA/iwcm: Fix a use-after-free related to destroying CM IDs") addressed this use-after- free by flushing all pending works at the cm_id destruction. However, still another use-after-free possibility remained. It happens with the work objects allocated for each cm_id_priv within alloc_work_entries() during cm_id creation, and subsequently freed in dealloc_work_entries() once all references to the cm_id are removed. If the cm_id's last reference is decremented in the event handler work, the work object for the work itself gets removed, and causes the use- after-free BUG below: BUG: KASAN: slab-use-after-free in __pwq_activate_work+0x1ff/0x250 Read of size 8 at addr ffff88811f9cf800 by task kworker/u16:1/147091 CPU: 2 UID: 0 PID: 147091 Comm: kworker/u16:1 Not tainted 6.15.0-rc2+ #27 PREEMPT(voluntary) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-3.fc41 04/01/2014 Workqueue: 0x0 (iw_cm_wq) Call Trace: <TASK> dump_stack_lvl+0x6a/0x90 print_report+0x174/0x554 ? __virt_addr_valid+0x208/0x430 ? __pwq_activate_work+0x1ff/0x250 kasan_report+0xae/0x170 ? __pwq_activate_work+0x1ff/0x250 __pwq_activate_work+0x1ff/0x250 pwq_dec_nr_in_flight+0x8c5/0xfb0 process_one_work+0xc11/0x1460 ? __pfx_process_one_work+0x10/0x10 ? assign_work+0x16c/0x240 worker_thread+0x5ef/0xfd0 ? __pfx_worker_thread+0x10/0x10 kthread+0x3b0/0x770 ? __pfx_kthread+0x10/0x10 ? rcu_is_watching+0x11/0xb0 ? _raw_spin_unlock_irq+0x24/0x50 ? rcu_is_watching+0x11/0xb0 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x30/0x70 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK> Allocated by task 147416: kasan_save_stack+0x2c/0x50 kasan_save_track+0x10/0x30 __kasan_kmalloc+0xa6/0xb0 alloc_work_entries+0xa9/0x260 [iw_cm] iw_cm_connect+0x23/0x4a0 [iw_cm] rdma_connect_locked+0xbfd/0x1920 [rdma_cm] nvme_rdma_cm_handler+0x8e5/0x1b60 [nvme_rdma] cma_cm_event_handler+0xae/0x320 [rdma_cm] cma_work_handler+0x106/0x1b0 [rdma_cm] process_one_work+0x84f/0x1460 worker_thread+0x5ef/0xfd0 kthread+0x3b0/0x770 ret_from_fork+0x30/0x70 ret_from_fork_asm+0x1a/0x30 Freed by task 147091: kasan_save_stack+0x2c/0x50 kasan_save_track+0x10/0x30 kasan_save_free_info+0x37/0x60 __kasan_slab_free+0x4b/0x70 kfree+0x13a/0x4b0 dealloc_work_entries+0x125/0x1f0 [iw_cm] iwcm_deref_id+0x6f/0xa0 [iw_cm] cm_work_handler+0x136/0x1ba0 [iw_cm] process_one_work+0x84f/0x1460 worker_thread+0x5ef/0xfd0 kthread+0x3b0/0x770 ret_from_fork+0x30/0x70 ret_from_fork_asm+0x1a/0x30 Last potentially related work creation: kasan_save_stack+0x2c/0x50 kasan_record_aux_stack+0xa3/0xb0 __queue_work+0x2ff/0x1390 queue_work_on+0x67/0xc0 cm_event_handler+0x46a/0x820 [iw_cm] siw_cm_upcall+0x330/0x650 [siw] siw_cm_work_handler+0x6b9/0x2b20 [siw] process_one_work+0x84f/0x1460 worker_thread+0x5ef/0xfd0 kthread+0x3b0/0x770 ret_from_fork+0x30/0x70 ret_from_fork_asm+0x1a/0x30 This BUG is reproducible by repeating the blktests test case nvme/061 for the rdma transport and the siw driver. To avoid the use-after-free of cm_id_private work objects, ensure that the last reference to the cm_id is decremented not in the event handler works, but in the cm_id destruction context. For that purpose, mo ---truncated---
7.3 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
Workaround
To mitigate this issue, prevent InfiniBand modules from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically. The names of the modules are: ib_addr, ib_cm, ib_core, ib_mad, ib_sa, ib_ucm, ib_umad, iw_cm.
In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Use memcpy() for BIOS version The strlcat() with FORTIFY support is triggering a panic because it thinks the target buffer will overflow although the correct target buffer size is passed in. Anyway, instead of memset() with 0 followed by a strlcat(), just use memcpy() and ensure that the resulting buffer is NULL terminated. BIOSVersion is only used for the lpfc_printf_log() which expects a properly terminated string.
7.0 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
In the Linux kernel, the following vulnerability has been resolved: drm/gem: Acquire references on GEM handles for framebuffers A GEM handle can be released while the GEM buffer object is attached to a DRM framebuffer. This leads to the release of the dma-buf backing the buffer object, if any. [1] Trying to use the framebuffer in further mode-setting operations leads to a segmentation fault. Most easily happens with driver that use shadow planes for vmap-ing the dma-buf during a page flip. An example is shown below. [ 156.791968] ------------[ cut here ]------------ [ 156.796830] WARNING: CPU: 2 PID: 2255 at drivers/dma-buf/dma-buf.c:1527 dma_buf_vmap+0x224/0x430 [...] [ 156.942028] RIP: 0010:dma_buf_vmap+0x224/0x430 [ 157.043420] Call Trace: [ 157.045898] <TASK> [ 157.048030] ? show_trace_log_lvl+0x1af/0x2c0 [ 157.052436] ? show_trace_log_lvl+0x1af/0x2c0 [ 157.056836] ? show_trace_log_lvl+0x1af/0x2c0 [ 157.061253] ? drm_gem_shmem_vmap+0x74/0x710 [ 157.065567] ? dma_buf_vmap+0x224/0x430 [ 157.069446] ? __warn.cold+0x58/0xe4 [ 157.073061] ? dma_buf_vmap+0x224/0x430 [ 157.077111] ? report_bug+0x1dd/0x390 [ 157.080842] ? handle_bug+0x5e/0xa0 [ 157.084389] ? exc_invalid_op+0x14/0x50 [ 157.088291] ? asm_exc_invalid_op+0x16/0x20 [ 157.092548] ? dma_buf_vmap+0x224/0x430 [ 157.096663] ? dma_resv_get_singleton+0x6d/0x230 [ 157.101341] ? __pfx_dma_buf_vmap+0x10/0x10 [ 157.105588] ? __pfx_dma_resv_get_singleton+0x10/0x10 [ 157.110697] drm_gem_shmem_vmap+0x74/0x710 [ 157.114866] drm_gem_vmap+0xa9/0x1b0 [ 157.118763] drm_gem_vmap_unlocked+0x46/0xa0 [ 157.123086] drm_gem_fb_vmap+0xab/0x300 [ 157.126979] drm_atomic_helper_prepare_planes.part.0+0x487/0xb10 [ 157.133032] ? lockdep_init_map_type+0x19d/0x880 [ 157.137701] drm_atomic_helper_commit+0x13d/0x2e0 [ 157.142671] ? drm_atomic_nonblocking_commit+0xa0/0x180 [ 157.147988] drm_mode_atomic_ioctl+0x766/0xe40 [...] [ 157.346424] ---[ end trace 0000000000000000 ]--- Acquiring GEM handles for the framebuffer's GEM buffer objects prevents this from happening. The framebuffer's cleanup later puts the handle references. Commit 1a148af06000 ("drm/gem-shmem: Use dma_buf from GEM object instance") triggers the segmentation fault easily by using the dma-buf field more widely. The underlying issue with reference counting has been present before. v2: - acquire the handle instead of the BO (Christian) - fix comment style (Christian) - drop the Fixes tag (Christian) - rename err_ gotos - add missing Link tag
7.3 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
Workaround
To mitigate this issue, prevent module drm from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.
In the Linux kernel, the following vulnerability has been resolved: vsock: Fix transport_* TOCTOU Transport assignment may race with module unload. Protect new_transport from becoming a stale pointer. This also takes care of an insecure call in vsock_use_local_transport(); add a lockdep assert. BUG: unable to handle page fault for address: fffffbfff8056000 Oops: Oops: 0000 [#1] SMP KASAN RIP: 0010:vsock_assign_transport+0x366/0x600 Call Trace: vsock_connect+0x59c/0xc40 __sys_connect+0xe8/0x100 __x64_sys_connect+0x6e/0xc0 do_syscall_64+0x92/0x1c0 entry_SYSCALL_64_after_hwframe+0x4b/0x53
7.3 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
Workaround
To mitigate this issue, prevent module vsock from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.
In the Linux kernel, the following vulnerability has been resolved: net/sched: sch_qfq: Fix race condition on qfq_aggregate A race condition can occur when 'agg' is modified in qfq_change_agg (called during qfq_enqueue) while other threads access it concurrently. For example, qfq_dump_class may trigger a NULL dereference, and qfq_delete_class may cause a use-after-free. This patch addresses the issue by: 1. Moved qfq_destroy_class into the critical section. 2. Added sch_tree_lock protection to qfq_dump_class and qfq_dump_class_stats.
7.3 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
Workaround
To mitigate this issue, prevent module sch_qfq from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.
In the Linux kernel, the following vulnerability has been resolved: do_change_type(): refuse to operate on unmounted/not ours mounts Ensure that propagation settings can only be changed for mounts located in the caller's mount namespace. This change aligns permission checking with the rest of mount(2).
7.3 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
Workaround
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix use-after-free in cifs_oplock_break A race condition can occur in cifs_oplock_break() leading to a use-after-free of the cinode structure when unmounting: cifs_oplock_break() _cifsFileInfo_put(cfile) cifsFileInfo_put_final() cifs_sb_deactive() [last ref, start releasing sb] kill_sb() kill_anon_super() generic_shutdown_super() evict_inodes() dispose_list() evict() destroy_inode() call_rcu(&inode->i_rcu, i_callback) spin_lock(&cinode->open_file_lock) <- OK [later] i_callback() cifs_free_inode() kmem_cache_free(cinode) spin_unlock(&cinode->open_file_lock) <- UAF cifs_done_oplock_break(cinode) <- UAF The issue occurs when umount has already released its reference to the superblock. When _cifsFileInfo_put() calls cifs_sb_deactive(), this releases the last reference, triggering the immediate cleanup of all inodes under RCU. However, cifs_oplock_break() continues to access the cinode after this point, resulting in use-after-free. Fix this by holding an extra reference to the superblock during the entire oplock break operation. This ensures that the superblock and its inodes remain valid until the oplock break completes.
7.0 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
In the Linux kernel, the following vulnerability has been resolved: HID: core: Harden s32ton() against conversion to 0 bits Testing by the syzbot fuzzer showed that the HID core gets a shift-out-of-bounds exception when it tries to convert a 32-bit quantity to a 0-bit quantity. Ideally this should never occur, but there are buggy devices and some might have a report field with size set to zero; we shouldn't reject the report or the device just because of that. Instead, harden the s32ton() routine so that it returns a reasonable result instead of crashing when it is called with the number of bits set to 0 -- the same as what snto32() does.
7.1 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
A flaw use after free in the Linux kernel NFS functionality was found in the way connected user sends malicious data to the server. A remote user could use this flaw to crash the system.
7.5 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
Workaround
To mitigate this issue, prevent module nfs from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.
A flaw out of boundary read in the Linux kernel NFS functionality was found in the way connected user sends malicious data to the server. A remote user could use this flaw to crash the system.
7.5 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
Workaround
To mitigate this issue, prevent module nfs from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.
This CVE has been marked as Rejected by the assigning CNA.
0.0 (None)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
A use after free vulnerbility exists in the linux kernel wifi module in the cmp_bss() function,an attacker could create a crafted payload to trigger, leading to damage availability and integrity of the system
7.0 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
https://access.redhat.com/errata/RHSA-2025:22752
Workaround
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
References
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"text": "The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: ALSA: usb-audio: ALSA USB Audio Out-of-Bounds Bug (CVE-2022-48701)\n\n* kernel: nfsd: don\u0027t ignore the return code of svc_proc_register() (CVE-2025-22026)\n\n* kernel: udp: Fix memory accounting leak. (CVE-2025-22058)\n\n* kernel: net_sched: hfsc: Fix a UAF vulnerability in class handling (CVE-2025-37797)\n\n* kernel: net: usb: smsc75xx: Limit packet length to skb-\u003elen (CVE-2023-53125)\n\n* kernel: net_sched: ets: Fix double list add in class with netem as child qdisc (CVE-2025-37914)\n\n* kernel: ASoC: SOF: Intel: hda: Fix potential buffer overflow by snprintf() (CVE-2022-50050)\n\n* kernel: mptcp: do not queue data on closed subflows (CVE-2022-50070)\n\n* kernel: ALSA: bcd2000: Fix a UAF bug on the error path of probing (CVE-2022-50229)\n\n* kernel: KVM: SVM: Don\u0027t BUG if userspace injects an interrupt with GIF=0 (CVE-2022-50228)\n\n* kernel: firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails (CVE-2022-50087)\n\n* kernel: bpf: Don\u0027t use tnum_range on array range checking for poke descriptors (CVE-2022-49985)\n\n* kernel: drm/amd/display: clear optc underflow before turn off odm clock (CVE-2022-49969)\n\n* kernel: md-raid10: fix KASAN warning (CVE-2022-50211)\n\n* kernel: i40e: fix MMIO write access to an invalid page in i40e_clear_hw (CVE-2025-38200)\n\n* kernel: RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction (CVE-2025-38211)\n\n* kernel: scsi: lpfc: Use memcpy() for BIOS version (CVE-2025-38332)\n\n* kernel: vsock: Fix transport_* TOCTOU (CVE-2025-38461)\n\n* kernel: drm/gem: Acquire references on GEM handles for framebuffers (CVE-2025-38449)\n\n* kernel: net/sched: sch_qfq: Fix race condition on qfq_aggregate (CVE-2025-38477)\n\n* kernel: do_change_type(): refuse to operate on unmounted/not ours mounts (CVE-2025-38498)\n\n* kernel: smb: client: fix use-after-free in cifs_oplock_break (CVE-2025-38527)\n\n* kernel: HID: core: Harden s32ton() against conversion to 0 bits (CVE-2025-38556)\n\n* kernel: tls: separate no-async decryption request handling from async (CVE-2024-58240)\n\n* kernel: NFS: Fix a race when updating an existing write (CVE-2025-39697)\n\n* kernel: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry() (CVE-2025-39730)\n\n* kernel: ALSA: hda/ca0132: Fix buffer overflow in add_tuning_control (CVE-2025-39751)\n\n* kernel: wifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies() (CVE-2023-53213)\n\n* kernel: wifi: ath9k: don\u0027t allow to overwrite ENDPOINT0 attributes (CVE-2023-53185)\n\n* kernel: mm: fix zswap writeback race condition (CVE-2023-53178)\n\n* kernel: Bluetooth: L2CAP: Fix use-after-free (CVE-2023-53305)\n\n* kernel: fs: fix UAF/GPF bug in nilfs_mdt_destroy (CVE-2022-50367)\n\n* kernel: net: sched: sfb: fix null pointer access issue when sfb_init() fails (CVE-2022-50356)\n\n* kernel: skbuff: skb_segment, Call zero copy functions before using skbuff frags (CVE-2023-53354)\n\n* kernel: crypto: seqiv - Handle EBUSY correctly (CVE-2023-53373)\n\n* kernel: Bluetooth: Fix potential use-after-free when clear keys (CVE-2023-53386)\n\n* kernel: Bluetooth: L2CAP: Fix user-after-free (CVE-2022-50386)\n\n* kernel: ext4: fix undefined behavior in bit shift for ext4_check_flag_values (CVE-2022-50403)\n\n* kernel: wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit() (CVE-2022-50408)\n\n* kernel: NFSD: Protect against send buffer overflow in NFSv2 READ (CVE-2022-50410)\n\n* kernel: wifi: cfg80211: fix use-after-free in cmp_bss() (CVE-2025-39864)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
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"text": "A flaw was found in the Linux kernel ALSA USB audio driver. This vulnerability allows a denial of service via a crafted USB audio device.",
"title": "Vulnerability description"
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"text": "kernel: ALSA: usb-audio: ALSA USB Audio Out-of-Bounds Bug",
"title": "Vulnerability summary"
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{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-48701"
},
{
"category": "external",
"summary": "RHBZ#2278950",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2278950"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-48701",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-48701"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-48701",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48701"
}
],
"release_date": "2024-05-03T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"version": "3.1"
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"details": "Low"
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"title": "kernel: ALSA: usb-audio: ALSA USB Audio Out-of-Bounds Bug"
},
{
"cve": "CVE-2022-49969",
"discovery_date": "2025-06-18T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2373635"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: clear optc underflow before turn off odm clock\n\n[Why]\nAfter ODM clock off, optc underflow bit will be kept there always and clear not work.\nWe need to clear that before clock off.\n\n[How]\nClear that if have when clock off.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: drm/amd/display: clear optc underflow before turn off odm clock",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-49969"
},
{
"category": "external",
"summary": "RHBZ#2373635",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373635"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-49969",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-49969"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-49969",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49969"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025061816-CVE-2022-49969-fd54@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025061816-CVE-2022-49969-fd54@gregkh/T"
}
],
"release_date": "2025-06-18T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
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"baseScore": 7.0,
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"integrityImpact": "HIGH",
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"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
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{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: drm/amd/display: clear optc underflow before turn off odm clock"
},
{
"cve": "CVE-2022-49985",
"cwe": {
"id": "CWE-787",
"name": "Out-of-bounds Write"
},
"discovery_date": "2025-06-18T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2373540"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Don\u0027t use tnum_range on array range checking for poke descriptors\n\nHsin-Wei reported a KASAN splat triggered by their BPF runtime fuzzer which\nis based on a customized syzkaller:\n\n BUG: KASAN: slab-out-of-bounds in bpf_int_jit_compile+0x1257/0x13f0\n Read of size 8 at addr ffff888004e90b58 by task syz-executor.0/1489\n CPU: 1 PID: 1489 Comm: syz-executor.0 Not tainted 5.19.0 #1\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\n 1.13.0-1ubuntu1.1 04/01/2014\n Call Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x9c/0xc9\n print_address_description.constprop.0+0x1f/0x1f0\n ? bpf_int_jit_compile+0x1257/0x13f0\n kasan_report.cold+0xeb/0x197\n ? kvmalloc_node+0x170/0x200\n ? bpf_int_jit_compile+0x1257/0x13f0\n bpf_int_jit_compile+0x1257/0x13f0\n ? arch_prepare_bpf_dispatcher+0xd0/0xd0\n ? rcu_read_lock_sched_held+0x43/0x70\n bpf_prog_select_runtime+0x3e8/0x640\n ? bpf_obj_name_cpy+0x149/0x1b0\n bpf_prog_load+0x102f/0x2220\n ? __bpf_prog_put.constprop.0+0x220/0x220\n ? find_held_lock+0x2c/0x110\n ? __might_fault+0xd6/0x180\n ? lock_downgrade+0x6e0/0x6e0\n ? lock_is_held_type+0xa6/0x120\n ? __might_fault+0x147/0x180\n __sys_bpf+0x137b/0x6070\n ? bpf_perf_link_attach+0x530/0x530\n ? new_sync_read+0x600/0x600\n ? __fget_files+0x255/0x450\n ? lock_downgrade+0x6e0/0x6e0\n ? fput+0x30/0x1a0\n ? ksys_write+0x1a8/0x260\n __x64_sys_bpf+0x7a/0xc0\n ? syscall_enter_from_user_mode+0x21/0x70\n do_syscall_64+0x3b/0x90\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n RIP: 0033:0x7f917c4e2c2d\n\nThe problem here is that a range of tnum_range(0, map-\u003emax_entries - 1) has\nlimited ability to represent the concrete tight range with the tnum as the\nset of resulting states from value + mask can result in a superset of the\nactual intended range, and as such a tnum_in(range, reg-\u003evar_off) check may\nyield true when it shouldn\u0027t, for example tnum_range(0, 2) would result in\n00XX -\u003e v = 0000, m = 0011 such that the intended set of {0, 1, 2} is here\nrepresented by a less precise superset of {0, 1, 2, 3}. As the register is\nknown const scalar, really just use the concrete reg-\u003evar_off.value for the\nupper index check.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: bpf: Don\u0027t use tnum_range on array range checking for poke descriptors",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-49985"
},
{
"category": "external",
"summary": "RHBZ#2373540",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373540"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-49985",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-49985"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-49985",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49985"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025061822-CVE-2022-49985-3e41@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025061822-CVE-2022-49985-3e41@gregkh/T"
}
],
"release_date": "2025-06-18T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"url": "https://access.redhat.com/errata/RHSA-2025:22752"
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"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: bpf: Don\u0027t use tnum_range on array range checking for poke descriptors"
},
{
"cve": "CVE-2022-50050",
"cwe": {
"id": "CWE-120",
"name": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)"
},
"discovery_date": "2025-06-18T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2373423"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: SOF: Intel: hda: Fix potential buffer overflow by snprintf()\n\nsnprintf() returns the would-be-filled size when the string overflows\nthe given buffer size, hence using this value may result in the buffer\noverflow (although it\u0027s unrealistic).\n\nThis patch replaces with a safer version, scnprintf() for papering\nover such a potential issue.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: ASoC: SOF: Intel: hda: Fix potential buffer overflow by snprintf()",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-50050"
},
{
"category": "external",
"summary": "RHBZ#2373423",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373423"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-50050",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-50050"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-50050",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50050"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025061845-CVE-2022-50050-f90d@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025061845-CVE-2022-50050-f90d@gregkh/T"
}
],
"release_date": "2025-06-18T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: ASoC: SOF: Intel: hda: Fix potential buffer overflow by snprintf()"
},
{
"cve": "CVE-2022-50070",
"cwe": {
"id": "CWE-825",
"name": "Expired Pointer Dereference"
},
"discovery_date": "2025-06-18T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2373435"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: do not queue data on closed subflows\n\nDipanjan reported a syzbot splat at close time:\n\nWARNING: CPU: 1 PID: 10818 at net/ipv4/af_inet.c:153\ninet_sock_destruct+0x6d0/0x8e0 net/ipv4/af_inet.c:153\nModules linked in: uio_ivshmem(OE) uio(E)\nCPU: 1 PID: 10818 Comm: kworker/1:16 Tainted: G OE\n5.19.0-rc6-g2eae0556bb9d #2\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\n1.13.0-1ubuntu1.1 04/01/2014\nWorkqueue: events mptcp_worker\nRIP: 0010:inet_sock_destruct+0x6d0/0x8e0 net/ipv4/af_inet.c:153\nCode: 21 02 00 00 41 8b 9c 24 28 02 00 00 e9 07 ff ff ff e8 34 4d 91\nf9 89 ee 4c 89 e7 e8 4a 47 60 ff e9 a6 fc ff ff e8 20 4d 91 f9 \u003c0f\u003e 0b\ne9 84 fe ff ff e8 14 4d 91 f9 0f 0b e9 d4 fd ff ff e8 08 4d\nRSP: 0018:ffffc9001b35fa78 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 00000000002879d0 RCX: ffff8881326f3b00\nRDX: 0000000000000000 RSI: ffff8881326f3b00 RDI: 0000000000000002\nRBP: ffff888179662674 R08: ffffffff87e983a0 R09: 0000000000000000\nR10: 0000000000000005 R11: 00000000000004ea R12: ffff888179662400\nR13: ffff888179662428 R14: 0000000000000001 R15: ffff88817e38e258\nFS: 0000000000000000(0000) GS:ffff8881f5f00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000020007bc0 CR3: 0000000179592000 CR4: 0000000000150ee0\nCall Trace:\n \u003cTASK\u003e\n __sk_destruct+0x4f/0x8e0 net/core/sock.c:2067\n sk_destruct+0xbd/0xe0 net/core/sock.c:2112\n __sk_free+0xef/0x3d0 net/core/sock.c:2123\n sk_free+0x78/0xa0 net/core/sock.c:2134\n sock_put include/net/sock.h:1927 [inline]\n __mptcp_close_ssk+0x50f/0x780 net/mptcp/protocol.c:2351\n __mptcp_destroy_sock+0x332/0x760 net/mptcp/protocol.c:2828\n mptcp_worker+0x5d2/0xc90 net/mptcp/protocol.c:2586\n process_one_work+0x9cc/0x1650 kernel/workqueue.c:2289\n worker_thread+0x623/0x1070 kernel/workqueue.c:2436\n kthread+0x2e9/0x3a0 kernel/kthread.c:376\n ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302\n \u003c/TASK\u003e\n\nThe root cause of the problem is that an mptcp-level (re)transmit can\nrace with mptcp_close() and the packet scheduler checks the subflow\nstate before acquiring the socket lock: we can try to (re)transmit on\nan already closed ssk.\n\nFix the issue checking again the subflow socket status under the\nsubflow socket lock protection. Additionally add the missing check\nfor the fallback-to-tcp case.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: mptcp: do not queue data on closed subflows",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-50070"
},
{
"category": "external",
"summary": "RHBZ#2373435",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373435"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-50070",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-50070"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-50070",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50070"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025061853-CVE-2022-50070-87b5@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025061853-CVE-2022-50070-87b5@gregkh/T"
}
],
"release_date": "2025-06-18T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"title": "kernel: mptcp: do not queue data on closed subflows"
},
{
"cve": "CVE-2022-50087",
"cwe": {
"id": "CWE-825",
"name": "Expired Pointer Dereference"
},
"discovery_date": "2025-06-18T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2373539"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails\n\nWhen scpi probe fails, at any point, we need to ensure that the scpi_info\nis not set and will remain NULL until the probe succeeds. If it is not\ntaken care, then it could result use-after-free as the value is exported\nvia get_scpi_ops() and could refer to a memory allocated via devm_kzalloc()\nbut freed when the probe fails.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability is rated Moderate for Red Hat Enterprise Linux 8 and 9. A use-after-free flaw in the `arm_scpi` firmware component of the Linux kernel could allow a local attacker to escalate privileges. Triggering this vulnerability requires precise timing conditions that need to coincide with the rare event of an scpi probe failure; scpi probes are typically only present on ARM platforms with scp firmware. As such, exploitation is non-trivial and environment-specific.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-50087"
},
{
"category": "external",
"summary": "RHBZ#2373539",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373539"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-50087",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-50087"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-50087",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50087"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025061859-CVE-2022-50087-53b1@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025061859-CVE-2022-50087-53b1@gregkh/T"
}
],
"release_date": "2025-06-18T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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],
"restart_required": {
"category": "machine"
},
"url": "https://access.redhat.com/errata/RHSA-2025:22752"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails"
},
{
"cve": "CVE-2022-50211",
"cwe": {
"id": "CWE-823",
"name": "Use of Out-of-range Pointer Offset"
},
"discovery_date": "2025-06-18T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2373662"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd-raid10: fix KASAN warning\n\nThere\u0027s a KASAN warning in raid10_remove_disk when running the lvm\ntest lvconvert-raid-reshape.sh. We fix this warning by verifying that the\nvalue \"number\" is valid.\n\nBUG: KASAN: slab-out-of-bounds in raid10_remove_disk+0x61/0x2a0 [raid10]\nRead of size 8 at addr ffff889108f3d300 by task mdX_raid10/124682\n\nCPU: 3 PID: 124682 Comm: mdX_raid10 Not tainted 5.19.0-rc6 #1\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014\nCall Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x34/0x44\n print_report.cold+0x45/0x57a\n ? __lock_text_start+0x18/0x18\n ? raid10_remove_disk+0x61/0x2a0 [raid10]\n kasan_report+0xa8/0xe0\n ? raid10_remove_disk+0x61/0x2a0 [raid10]\n raid10_remove_disk+0x61/0x2a0 [raid10]\nBuffer I/O error on dev dm-76, logical block 15344, async page read\n ? __mutex_unlock_slowpath.constprop.0+0x1e0/0x1e0\n remove_and_add_spares+0x367/0x8a0 [md_mod]\n ? super_written+0x1c0/0x1c0 [md_mod]\n ? mutex_trylock+0xac/0x120\n ? _raw_spin_lock+0x72/0xc0\n ? _raw_spin_lock_bh+0xc0/0xc0\n md_check_recovery+0x848/0x960 [md_mod]\n raid10d+0xcf/0x3360 [raid10]\n ? sched_clock_cpu+0x185/0x1a0\n ? rb_erase+0x4d4/0x620\n ? var_wake_function+0xe0/0xe0\n ? psi_group_change+0x411/0x500\n ? preempt_count_sub+0xf/0xc0\n ? _raw_spin_lock_irqsave+0x78/0xc0\n ? __lock_text_start+0x18/0x18\n ? raid10_sync_request+0x36c0/0x36c0 [raid10]\n ? preempt_count_sub+0xf/0xc0\n ? _raw_spin_unlock_irqrestore+0x19/0x40\n ? del_timer_sync+0xa9/0x100\n ? try_to_del_timer_sync+0xc0/0xc0\n ? _raw_spin_lock_irqsave+0x78/0xc0\n ? __lock_text_start+0x18/0x18\n ? _raw_spin_unlock_irq+0x11/0x24\n ? __list_del_entry_valid+0x68/0xa0\n ? finish_wait+0xa3/0x100\n md_thread+0x161/0x260 [md_mod]\n ? unregister_md_personality+0xa0/0xa0 [md_mod]\n ? _raw_spin_lock_irqsave+0x78/0xc0\n ? prepare_to_wait_event+0x2c0/0x2c0\n ? unregister_md_personality+0xa0/0xa0 [md_mod]\n kthread+0x148/0x180\n ? kthread_complete_and_exit+0x20/0x20\n ret_from_fork+0x1f/0x30\n \u003c/TASK\u003e\n\nAllocated by task 124495:\n kasan_save_stack+0x1e/0x40\n __kasan_kmalloc+0x80/0xa0\n setup_conf+0x140/0x5c0 [raid10]\n raid10_run+0x4cd/0x740 [raid10]\n md_run+0x6f9/0x1300 [md_mod]\n raid_ctr+0x2531/0x4ac0 [dm_raid]\n dm_table_add_target+0x2b0/0x620 [dm_mod]\n table_load+0x1c8/0x400 [dm_mod]\n ctl_ioctl+0x29e/0x560 [dm_mod]\n dm_compat_ctl_ioctl+0x7/0x20 [dm_mod]\n __do_compat_sys_ioctl+0xfa/0x160\n do_syscall_64+0x90/0xc0\n entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nLast potentially related work creation:\n kasan_save_stack+0x1e/0x40\n __kasan_record_aux_stack+0x9e/0xc0\n kvfree_call_rcu+0x84/0x480\n timerfd_release+0x82/0x140\nL __fput+0xfa/0x400\n task_work_run+0x80/0xc0\n exit_to_user_mode_prepare+0x155/0x160\n syscall_exit_to_user_mode+0x12/0x40\n do_syscall_64+0x42/0xc0\n entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nSecond to last potentially related work creation:\n kasan_save_stack+0x1e/0x40\n __kasan_record_aux_stack+0x9e/0xc0\n kvfree_call_rcu+0x84/0x480\n timerfd_release+0x82/0x140\n __fput+0xfa/0x400\n task_work_run+0x80/0xc0\n exit_to_user_mode_prepare+0x155/0x160\n syscall_exit_to_user_mode+0x12/0x40\n do_syscall_64+0x42/0xc0\n entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nThe buggy address belongs to the object at ffff889108f3d200\n which belongs to the cache kmalloc-256 of size 256\nThe buggy address is located 0 bytes to the right of\n 256-byte region [ffff889108f3d200, ffff889108f3d300)\n\nThe buggy address belongs to the physical page:\npage:000000007ef2a34c refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1108f3c\nhead:000000007ef2a34c order:2 compound_mapcount:0 compound_pincount:0\nflags: 0x4000000000010200(slab|head|zone=2)\nraw: 4000000000010200 0000000000000000 dead000000000001 ffff889100042b40\nraw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000\npage dumped because: kasan: bad access detected\n\nMemory state around the buggy address:\n ffff889108f3d200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n ffff889108f3d280: 00 00\n---truncated---",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: md-raid10: fix KASAN warning",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-50211"
},
{
"category": "external",
"summary": "RHBZ#2373662",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373662"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-50211",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-50211"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-50211",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50211"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025061843-CVE-2022-50211-393a@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025061843-CVE-2022-50211-393a@gregkh/T"
}
],
"release_date": "2025-06-18T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
"cvss_v3": {
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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
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"details": "Moderate"
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"title": "kernel: md-raid10: fix KASAN warning"
},
{
"cve": "CVE-2022-50228",
"discovery_date": "2025-06-18T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2373529"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: SVM: Don\u0027t BUG if userspace injects an interrupt with GIF=0\n\nDon\u0027t BUG/WARN on interrupt injection due to GIF being cleared,\nsince it\u0027s trivial for userspace to force the situation via\nKVM_SET_VCPU_EVENTS (even if having at least a WARN there would be correct\nfor KVM internally generated injections).\n\n kernel BUG at arch/x86/kvm/svm/svm.c:3386!\n invalid opcode: 0000 [#1] SMP\n CPU: 15 PID: 926 Comm: smm_test Not tainted 5.17.0-rc3+ #264\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015\n RIP: 0010:svm_inject_irq+0xab/0xb0 [kvm_amd]\n Code: \u003c0f\u003e 0b 0f 1f 00 0f 1f 44 00 00 80 3d ac b3 01 00 00 55 48 89 f5 53\n RSP: 0018:ffffc90000b37d88 EFLAGS: 00010246\n RAX: 0000000000000000 RBX: ffff88810a234ac0 RCX: 0000000000000006\n RDX: 0000000000000000 RSI: ffffc90000b37df7 RDI: ffff88810a234ac0\n RBP: ffffc90000b37df7 R08: ffff88810a1fa410 R09: 0000000000000000\n R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000\n R13: ffff888109571000 R14: ffff88810a234ac0 R15: 0000000000000000\n FS: 0000000001821380(0000) GS:ffff88846fdc0000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00007f74fc550008 CR3: 000000010a6fe000 CR4: 0000000000350ea0\n Call Trace:\n \u003cTASK\u003e\n inject_pending_event+0x2f7/0x4c0 [kvm]\n kvm_arch_vcpu_ioctl_run+0x791/0x17a0 [kvm]\n kvm_vcpu_ioctl+0x26d/0x650 [kvm]\n __x64_sys_ioctl+0x82/0xb0\n do_syscall_64+0x3b/0xc0\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n \u003c/TASK\u003e",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: KVM: SVM: Don\u0027t BUG if userspace injects an interrupt with GIF=0",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-50228"
},
{
"category": "external",
"summary": "RHBZ#2373529",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373529"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-50228",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-50228"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-50228",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50228"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025061849-CVE-2022-50228-3904@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025061849-CVE-2022-50228-3904@gregkh/T"
}
],
"release_date": "2025-06-18T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"scope": "UNCHANGED",
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"version": "3.1"
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{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: KVM: SVM: Don\u0027t BUG if userspace injects an interrupt with GIF=0"
},
{
"cve": "CVE-2022-50229",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2025-06-18T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2373460"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: bcd2000: Fix a UAF bug on the error path of probing\n\nWhen the driver fails in snd_card_register() at probe time, it will free\nthe \u0027bcd2k-\u003emidi_out_urb\u0027 before killing it, which may cause a UAF bug.\n\nThe following log can reveal it:\n\n[ 50.727020] BUG: KASAN: use-after-free in bcd2000_input_complete+0x1f1/0x2e0 [snd_bcd2000]\n[ 50.727623] Read of size 8 at addr ffff88810fab0e88 by task swapper/4/0\n[ 50.729530] Call Trace:\n[ 50.732899] bcd2000_input_complete+0x1f1/0x2e0 [snd_bcd2000]\n\nFix this by adding usb_kill_urb() before usb_free_urb().",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: ALSA: bcd2000: Fix a UAF bug on the error path of probing",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-50229"
},
{
"category": "external",
"summary": "RHBZ#2373460",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373460"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-50229",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-50229"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-50229",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50229"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025061850-CVE-2022-50229-702e@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025061850-CVE-2022-50229-702e@gregkh/T"
}
],
"release_date": "2025-06-18T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"title": "kernel: ALSA: bcd2000: Fix a UAF bug on the error path of probing"
},
{
"cve": "CVE-2022-50356",
"cwe": {
"id": "CWE-476",
"name": "NULL Pointer Dereference"
},
"discovery_date": "2025-09-17T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2396152"
}
],
"notes": [
{
"category": "description",
"text": "A null pointer dereference exists in the linux kernel, such that when sfb_init() fails qdisc is NULL, and it will cause gpf issue, leading to damage to the availability of the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net: sched: sfb: fix null pointer access issue when sfb_init() fails",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-50356"
},
{
"category": "external",
"summary": "RHBZ#2396152",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2396152"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-50356",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-50356"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-50356",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50356"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091714-CVE-2022-50356-fe76@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091714-CVE-2022-50356-fe76@gregkh/T"
}
],
"release_date": "2025-09-17T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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{
"category": "impact",
"details": "Moderate"
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],
"title": "kernel: net: sched: sfb: fix null pointer access issue when sfb_init() fails"
},
{
"cve": "CVE-2022-50367",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2025-09-17T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2396114"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs: fix UAF/GPF bug in nilfs_mdt_destroy\n\nIn alloc_inode, inode_init_always() could return -ENOMEM if\nsecurity_inode_alloc() fails, which causes inode-\u003ei_private\nuninitialized. Then nilfs_is_metadata_file_inode() returns\ntrue and nilfs_free_inode() wrongly calls nilfs_mdt_destroy(),\nwhich frees the uninitialized inode-\u003ei_private\nand leads to crashes(e.g., UAF/GPF).\n\nFix this by moving security_inode_alloc just prior to\nthis_cpu_inc(nr_inodes)",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: fs: fix UAF/GPF bug in nilfs_mdt_destroy",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This patch fixes a use-after-free/GPF bug in the NILFS2 metadata handling. When security_inode_alloc() failed, an uninitialized inode-\u003ei_private pointer could later be freed by nilfs_mdt_destroy(), leading to memory corruption or crashes.\nYou can reproduce this issue on systems using NILFS, because the crash path involves nilfs_mdt_destroy() freeing inode-\u003ei_private when security_inode_alloc() fails. On other filesystems the same cleanup path does not run, so accidental freeing of that uninitialized field is far less likely.\nConsequently, systems not using NILFS are at much lower risk unless they have other code that similarly frees inode-\u003ei_private.\nFor the all versions of the Red Hat Enterprise Linux the config param CONFIG_NILFS2_FS disabled, so with the known scenario of attack it is not affected.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-50367"
},
{
"category": "external",
"summary": "RHBZ#2396114",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2396114"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-50367",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-50367"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-50367",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50367"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091716-CVE-2022-50367-651c@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091716-CVE-2022-50367-651c@gregkh/T"
}
],
"release_date": "2025-09-17T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
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],
"title": "kernel: fs: fix UAF/GPF bug in nilfs_mdt_destroy"
},
{
"cve": "CVE-2022-50386",
"discovery_date": "2025-09-18T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2396431"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix user-after-free\n\nThis uses l2cap_chan_hold_unless_zero() after calling\n__l2cap_get_chan_blah() to prevent the following trace:\n\nBluetooth: l2cap_core.c:static void l2cap_chan_destroy(struct kref\n*kref)\nBluetooth: chan 0000000023c4974d\nBluetooth: parent 00000000ae861c08\n==================================================================\nBUG: KASAN: use-after-free in __mutex_waiter_is_first\nkernel/locking/mutex.c:191 [inline]\nBUG: KASAN: use-after-free in __mutex_lock_common\nkernel/locking/mutex.c:671 [inline]\nBUG: KASAN: use-after-free in __mutex_lock+0x278/0x400\nkernel/locking/mutex.c:729\nRead of size 8 at addr ffff888006a49b08 by task kworker/u3:2/389",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Bluetooth: L2CAP: Fix user-after-free",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "A use-after-free in the Bluetooth L2CAP subsystem could occur when handling channel responses in l2cap_connect_create_rsp(), due to missing reference checks. This condition can be triggered during race conditions between channel creation and teardown, leading to kernel crashes. Exploitation is most practical as a local or adjacent denial of service over Bluetooth.\n\nL2CAP underpins many Bluetooth profiles and services (BLE ATT/GATT, RFCOMM, A2DP/AVRCP, HID, PAN, SDP, OBEX, etc.). Any profile that creates logical L2CAP channels may be involved. Common real-world triggers include BLE GATT interactions, audio profiles, HID devices, and tethering/PAN connections.\n\nAn attacker within radio range can attempt to repeatedly open/close or otherwise race L2CAP channels to increase likelihood of the race (fast connect/disconnect storms or parallel requests).\n\nMost realistic impact is a local/adjacent attacker (in Bluetooth radio range) who can actively interact with the target Bluetooth stack.\n\nThe CIA=HHH for CVSS is a conservative/precautionary assessment. In practical terms, successful privilege escalation or remote compromise is unlikely but theoretically possible: to do so an attacker would need to craft a sequence that causes controlled memory corruption and further exploit kernel memory layout \u2014 substantially harder than causing a crash.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-50386"
},
{
"category": "external",
"summary": "RHBZ#2396431",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2396431"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-50386",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-50386"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-50386",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50386"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091852-CVE-2022-50386-07d7@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091852-CVE-2022-50386-07d7@gregkh/T"
}
],
"release_date": "2025-09-18T00:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.6,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H",
"version": "3.1"
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},
{
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"name": "Integer Overflow or Wraparound"
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"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2396494"
}
],
"notes": [
{
"category": "description",
"text": "A vulnerability was identified in the Linux kernel\u0027s ext4 filesystem implementation due to a flaw in how it processes filesystem metadata. An attacker with local privileges could create a malicious ext4 filesystem image to trigger this issue. When the system attempts to mount this malicious image, the kernel performs an incorrect calculation. This action results in unpredictable system behavior.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: ext4: fix undefined behavior in bit shift for ext4_check_flag_values",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-50403"
},
{
"category": "external",
"summary": "RHBZ#2396494",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2396494"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-50403",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-50403"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-50403",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50403"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091852-CVE-2022-50403-0471@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091852-CVE-2022-50403-0471@gregkh/T"
}
],
"release_date": "2025-09-18T00:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
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{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: ext4: fix undefined behavior in bit shift for ext4_check_flag_values"
},
{
"cve": "CVE-2022-50408",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2025-09-18T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2396506"
}
],
"notes": [
{
"category": "description",
"text": "A use after free exists in the wifi module of the linux kernel in the function brcmf_netdev_start_xmit(),thereby leading to damage to system availability and integrity.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit()",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "A Use-After-Free vulnerability was found in brcmf_netdev_start_xmit() in the Broadcom brcmfmac driver.\nThe function updated ndev-\u003estats.tx_bytes after calling brcmf_proto_tx_queue_data(), which may complete asynchronously and free the skb object before accessing it.\nThe patch stores skb-\u003elen in a local variable before the transmission call to prevent dereferencing freed memory.\nPrivilege required is low (PR:L) since the issue is triggered during normal packet transmission from a network interface, accessible to local processes using networking APIs.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-50408"
},
{
"category": "external",
"summary": "RHBZ#2396506",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2396506"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-50408",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-50408"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-50408",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50408"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091853-CVE-2022-50408-5835@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091853-CVE-2022-50408-5835@gregkh/T"
}
],
"release_date": "2025-09-18T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
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"title": "kernel: wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit()"
},
{
"cve": "CVE-2022-50410",
"cwe": {
"id": "CWE-787",
"name": "Out-of-bounds Write"
},
"discovery_date": "2025-09-18T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2396536"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFSD: Protect against send buffer overflow in NFSv2 READ\n\nSince before the git era, NFSD has conserved the number of pages\nheld by each nfsd thread by combining the RPC receive and send\nbuffers into a single array of pages. This works because there are\nno cases where an operation needs a large RPC Call message and a\nlarge RPC Reply at the same time.\n\nOnce an RPC Call has been received, svc_process() updates\nsvc_rqst::rq_res to describe the part of rq_pages that can be\nused for constructing the Reply. This means that the send buffer\n(rq_res) shrinks when the received RPC record containing the RPC\nCall is large.\n\nA client can force this shrinkage on TCP by sending a correctly-\nformed RPC Call header contained in an RPC record that is\nexcessively large. The full maximum payload size cannot be\nconstructed in that case.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: NFSD: Protect against send buffer overflow in NFSv2 READ",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "A logic flaw in the NFSv2 server implementation could allow a remote NFS client to trigger a send-buffer overflow by sending a valid but excessively large RPC Call header, resulting in an oversized READ request exceeding the available response buffer. Successful exploitation could lead to memory corruption and potential denial of service (kernel crash).",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2022-50410"
},
{
"category": "external",
"summary": "RHBZ#2396536",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2396536"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2022-50410",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-50410"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-50410",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50410"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091853-CVE-2022-50410-edee@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091853-CVE-2022-50410-edee@gregkh/T"
}
],
"release_date": "2025-09-18T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
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"confidentialityImpact": "LOW",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:H",
"version": "3.1"
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"title": "kernel: NFSD: Protect against send buffer overflow in NFSv2 READ"
},
{
"cve": "CVE-2023-53125",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
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"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2363686"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: smsc75xx: Limit packet length to skb-\u003elen\n\nPacket length retrieved from skb data may be larger than\nthe actual socket buffer length (up to 9026 bytes). In such\ncase the cloned skb passed up the network stack will leak\nkernel memory contents.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net: usb: smsc75xx: Limit packet length to skb-\u003elen",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "The vulnerability in SMSC LAN75XX based USB 2.0 gigabit ethernet devices driver arises because the driver fails to properly validate packet length fields when receiving network frames. Specifically, the code used size values that could exceed the actual skb-\u003elen, leading to a situation where kernel memory beyond the buffer is copied into the outgoing skb. If the driver is active, a remote attacker on the same network can send oversized Ethernet frames to trigger this bug, resulting in leakage of uninitialized kernel memory (CIA: HNN, Confidentiality: High).",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-53125"
},
{
"category": "external",
"summary": "RHBZ#2363686",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2363686"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-53125",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-53125"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-53125",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53125"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025050232-CVE-2023-53125-67cf@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025050232-CVE-2023-53125-67cf@gregkh/T"
}
],
"release_date": "2025-05-02T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"restart_required": {
"category": "machine"
},
"url": "https://access.redhat.com/errata/RHSA-2025:22752"
},
{
"category": "workaround",
"details": "To mitigate this issue, prevent module smsc75xx from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.",
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{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: net: usb: smsc75xx: Limit packet length to skb-\u003elen"
},
{
"cve": "CVE-2023-53178",
"cwe": {
"id": "CWE-367",
"name": "Time-of-check Time-of-use (TOCTOU) Race Condition"
},
"discovery_date": "2025-09-15T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2395358"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm: fix zswap writeback race condition\n\nThe zswap writeback mechanism can cause a race condition resulting in\nmemory corruption, where a swapped out page gets swapped in with data that\nwas written to a different page.\n\nThe race unfolds like this:\n1. a page with data A and swap offset X is stored in zswap\n2. page A is removed off the LRU by zpool driver for writeback in\n zswap-shrink work, data for A is mapped by zpool driver\n3. user space program faults and invalidates page entry A, offset X is\n considered free\n4. kswapd stores page B at offset X in zswap (zswap could also be\n full, if so, page B would then be IOed to X, then skip step 5.)\n5. entry A is replaced by B in tree-\u003erbroot, this doesn\u0027t affect the\n local reference held by zswap-shrink work\n6. zswap-shrink work writes back A at X, and frees zswap entry A\n7. swapin of slot X brings A in memory instead of B\n\nThe fix:\nOnce the swap page cache has been allocated (case ZSWAP_SWAPCACHE_NEW),\nzswap-shrink work just checks that the local zswap_entry reference is\nstill the same as the one in the tree. If it\u0027s not the same it means that\nit\u0027s either been invalidated or replaced, in both cases the writeback is\naborted because the local entry contains stale data.\n\nReproducer:\nI originally found this by running `stress` overnight to validate my work\non the zswap writeback mechanism, it manifested after hours on my test\nmachine. The key to make it happen is having zswap writebacks, so\nwhatever setup pumps /sys/kernel/debug/zswap/written_back_pages should do\nthe trick.\n\nIn order to reproduce this faster on a vm, I setup a system with ~100M of\navailable memory and a 500M swap file, then running `stress --vm 1\n--vm-bytes 300000000 --vm-stride 4000` makes it happen in matter of tens\nof minutes. One can speed things up even more by swinging\n/sys/module/zswap/parameters/max_pool_percent up and down between, say, 20\nand 1; this makes it reproduce in tens of seconds. It\u0027s crucial to set\n`--vm-stride` to something other than 4096 otherwise `stress` won\u0027t\nrealize that memory has been corrupted because all pages would have the\nsame data.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: mm: fix zswap writeback race condition",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability is a race condition in the zswap writeback path that can lead to memory corruption when a swap slot is reused while a writeback is still in progress.\nA local unprivileged user can potentially trigger this issue by applying heavy memory pressure and causing frequent zswap evictions.\nWhile exploitation for data leakage or privilege escalation is unlikely, the flaw can result in data integrity issues or system instability under specific conditions.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-53178"
},
{
"category": "external",
"summary": "RHBZ#2395358",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2395358"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-53178",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-53178"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-53178",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53178"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091555-CVE-2023-53178-9d27@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091555-CVE-2023-53178-9d27@gregkh/T"
}
],
"release_date": "2025-09-15T00:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
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{
"cve": "CVE-2023-53185",
"cwe": {
"id": "CWE-1285",
"name": "Improper Validation of Specified Index, Position, or Offset in Input"
},
"discovery_date": "2025-09-15T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2395297"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath9k: don\u0027t allow to overwrite ENDPOINT0 attributes\n\nA bad USB device is able to construct a service connection response\nmessage with target endpoint being ENDPOINT0 which is reserved for\nHTC_CTRL_RSVD_SVC and should not be modified to be used for any other\nservices.\n\nReject such service connection responses.\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: wifi: ath9k: don\u0027t allow to overwrite ENDPOINT0 attributes",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-53185"
},
{
"category": "external",
"summary": "RHBZ#2395297",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2395297"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-53185",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-53185"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-53185",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53185"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091557-CVE-2023-53185-2f8d@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091557-CVE-2023-53185-2f8d@gregkh/T"
}
],
"release_date": "2025-09-15T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
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],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: wifi: ath9k: don\u0027t allow to overwrite ENDPOINT0 attributes"
},
{
"cve": "CVE-2023-53213",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"discovery_date": "2025-09-15T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2395267"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies()\n\nFix a slab-out-of-bounds read that occurs in kmemdup() called from\nbrcmf_get_assoc_ies().\nThe bug could occur when assoc_info-\u003ereq_len, data from a URB provided\nby a USB device, is bigger than the size of buffer which is defined as\nWL_EXTRA_BUF_MAX.\n\nAdd the size check for req_len/resp_len of assoc_info.\n\nFound by a modified version of syzkaller.\n\n[ 46.592467][ T7] ==================================================================\n[ 46.594687][ T7] BUG: KASAN: slab-out-of-bounds in kmemdup+0x3e/0x50\n[ 46.596572][ T7] Read of size 3014656 at addr ffff888019442000 by task kworker/0:1/7\n[ 46.598575][ T7]\n[ 46.599157][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Tainted: G O 5.14.0+ #145\n[ 46.601333][ T7] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014\n[ 46.604360][ T7] Workqueue: events brcmf_fweh_event_worker\n[ 46.605943][ T7] Call Trace:\n[ 46.606584][ T7] dump_stack_lvl+0x8e/0xd1\n[ 46.607446][ T7] print_address_description.constprop.0.cold+0x93/0x334\n[ 46.608610][ T7] ? kmemdup+0x3e/0x50\n[ 46.609341][ T7] kasan_report.cold+0x79/0xd5\n[ 46.610151][ T7] ? kmemdup+0x3e/0x50\n[ 46.610796][ T7] kasan_check_range+0x14e/0x1b0\n[ 46.611691][ T7] memcpy+0x20/0x60\n[ 46.612323][ T7] kmemdup+0x3e/0x50\n[ 46.612987][ T7] brcmf_get_assoc_ies+0x967/0xf60\n[ 46.613904][ T7] ? brcmf_notify_vif_event+0x3d0/0x3d0\n[ 46.614831][ T7] ? lock_chain_count+0x20/0x20\n[ 46.615683][ T7] ? mark_lock.part.0+0xfc/0x2770\n[ 46.616552][ T7] ? lock_chain_count+0x20/0x20\n[ 46.617409][ T7] ? mark_lock.part.0+0xfc/0x2770\n[ 46.618244][ T7] ? lock_chain_count+0x20/0x20\n[ 46.619024][ T7] brcmf_bss_connect_done.constprop.0+0x241/0x2e0\n[ 46.620019][ T7] ? brcmf_parse_configure_security.isra.0+0x2a0/0x2a0\n[ 46.620818][ T7] ? __lock_acquire+0x181f/0x5790\n[ 46.621462][ T7] brcmf_notify_connect_status+0x448/0x1950\n[ 46.622134][ T7] ? rcu_read_lock_bh_held+0xb0/0xb0\n[ 46.622736][ T7] ? brcmf_cfg80211_join_ibss+0x7b0/0x7b0\n[ 46.623390][ T7] ? find_held_lock+0x2d/0x110\n[ 46.623962][ T7] ? brcmf_fweh_event_worker+0x19f/0xc60\n[ 46.624603][ T7] ? mark_held_locks+0x9f/0xe0\n[ 46.625145][ T7] ? lockdep_hardirqs_on_prepare+0x3e0/0x3e0\n[ 46.625871][ T7] ? brcmf_cfg80211_join_ibss+0x7b0/0x7b0\n[ 46.626545][ T7] brcmf_fweh_call_event_handler.isra.0+0x90/0x100\n[ 46.627338][ T7] brcmf_fweh_event_worker+0x557/0xc60\n[ 46.627962][ T7] ? brcmf_fweh_call_event_handler.isra.0+0x100/0x100\n[ 46.628736][ T7] ? rcu_read_lock_sched_held+0xa1/0xd0\n[ 46.629396][ T7] ? rcu_read_lock_bh_held+0xb0/0xb0\n[ 46.629970][ T7] ? lockdep_hardirqs_on_prepare+0x273/0x3e0\n[ 46.630649][ T7] process_one_work+0x92b/0x1460\n[ 46.631205][ T7] ? pwq_dec_nr_in_flight+0x330/0x330\n[ 46.631821][ T7] ? rwlock_bug.part.0+0x90/0x90\n[ 46.632347][ T7] worker_thread+0x95/0xe00\n[ 46.632832][ T7] ? __kthread_parkme+0x115/0x1e0\n[ 46.633393][ T7] ? process_one_work+0x1460/0x1460\n[ 46.633957][ T7] kthread+0x3a1/0x480\n[ 46.634369][ T7] ? set_kthread_struct+0x120/0x120\n[ 46.634933][ T7] ret_from_fork+0x1f/0x30\n[ 46.635431][ T7]\n[ 46.635687][ T7] Allocated by task 7:\n[ 46.636151][ T7] kasan_save_stack+0x1b/0x40\n[ 46.636628][ T7] __kasan_kmalloc+0x7c/0x90\n[ 46.637108][ T7] kmem_cache_alloc_trace+0x19e/0x330\n[ 46.637696][ T7] brcmf_cfg80211_attach+0x4a0/0x4040\n[ 46.638275][ T7] brcmf_attach+0x389/0xd40\n[ 46.638739][ T7] brcmf_usb_probe+0x12de/0x1690\n[ 46.639279][ T7] usb_probe_interface+0x2aa/0x760\n[ 46.639820][ T7] really_probe+0x205/0xb70\n[ 46.640342][ T7] __driver_probe_device+0\n---truncated---",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: wifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies()",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-53213"
},
{
"category": "external",
"summary": "RHBZ#2395267",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2395267"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-53213",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-53213"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-53213",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53213"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091511-CVE-2023-53213-dfc5@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091511-CVE-2023-53213-dfc5@gregkh/T"
}
],
"release_date": "2025-09-15T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"restart_required": {
"category": "machine"
},
"url": "https://access.redhat.com/errata/RHSA-2025:22752"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
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{
"category": "impact",
"details": "Moderate"
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"title": "kernel: wifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies()"
},
{
"cve": "CVE-2023-53305",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2025-09-16T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2395858"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix use-after-free\n\nFix potential use-after-free in l2cap_le_command_rej.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Bluetooth: L2CAP: Fix use-after-free",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This L2CAP issue is adjacency-only (Bluetooth LE): an attacker must be within radio range and craft malicious LE frames. Impact is primarily kernel crash / DoS.\nIt could trigger a use-after-free condition when processing LE command rejection.\nIn practice an attacker must either establish a BLE connection or rely on the device accepting unauthenticated L2CAP traffic. If the device enforces pairing/authentication for L2CAP operations, exploitation from an unauthenticated remote actor is unlikely.\nFixed in Red Hat Enterprise Linux 9 starting from 9.4.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-53305"
},
{
"category": "external",
"summary": "RHBZ#2395858",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2395858"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-53305",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-53305"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-53305",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53305"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091641-CVE-2023-53305-b8fe@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091641-CVE-2023-53305-b8fe@gregkh/T"
}
],
"release_date": "2025-09-16T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"restart_required": {
"category": "machine"
},
"url": "https://access.redhat.com/errata/RHSA-2025:22752"
},
{
"category": "workaround",
"details": "To mitigate these vulnerabilities on the operating system level, disable the Bluetooth functionality via blocklisting kernel modules in the Linux kernel. The kernel modules can be prevented from being loaded by using system-wide modprobe rules. Instructions on how to disable Bluetooth modules are available on the customer portal at https://access.redhat.com/solutions/2682931.\n\nAlternatively, bluetooth can be disabled within the hardware or at the BIOS level, which will also provide effective mitigation as the kernel will not detect Bluetooth hardware on the system.",
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.6,
"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: Bluetooth: L2CAP: Fix use-after-free"
},
{
"cve": "CVE-2023-53354",
"cwe": {
"id": "CWE-476",
"name": "NULL Pointer Dereference"
},
"discovery_date": "2025-09-17T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2396158"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nskbuff: skb_segment, Call zero copy functions before using skbuff frags\n\nCommit bf5c25d60861 (\"skbuff: in skb_segment, call zerocopy functions\nonce per nskb\") added the call to zero copy functions in skb_segment().\nThe change introduced a bug in skb_segment() because skb_orphan_frags()\nmay possibly change the number of fragments or allocate new fragments\naltogether leaving nrfrags and frag to point to the old values. This can\ncause a panic with stacktrace like the one below.\n\n[ 193.894380] BUG: kernel NULL pointer dereference, address: 00000000000000bc\n[ 193.895273] CPU: 13 PID: 18164 Comm: vh-net-17428 Kdump: loaded Tainted: G O 5.15.123+ #26\n[ 193.903919] RIP: 0010:skb_segment+0xb0e/0x12f0\n[ 194.021892] Call Trace:\n[ 194.027422] \u003cTASK\u003e\n[ 194.072861] tcp_gso_segment+0x107/0x540\n[ 194.082031] inet_gso_segment+0x15c/0x3d0\n[ 194.090783] skb_mac_gso_segment+0x9f/0x110\n[ 194.095016] __skb_gso_segment+0xc1/0x190\n[ 194.103131] netem_enqueue+0x290/0xb10 [sch_netem]\n[ 194.107071] dev_qdisc_enqueue+0x16/0x70\n[ 194.110884] __dev_queue_xmit+0x63b/0xb30\n[ 194.121670] bond_start_xmit+0x159/0x380 [bonding]\n[ 194.128506] dev_hard_start_xmit+0xc3/0x1e0\n[ 194.131787] __dev_queue_xmit+0x8a0/0xb30\n[ 194.138225] macvlan_start_xmit+0x4f/0x100 [macvlan]\n[ 194.141477] dev_hard_start_xmit+0xc3/0x1e0\n[ 194.144622] sch_direct_xmit+0xe3/0x280\n[ 194.147748] __dev_queue_xmit+0x54a/0xb30\n[ 194.154131] tap_get_user+0x2a8/0x9c0 [tap]\n[ 194.157358] tap_sendmsg+0x52/0x8e0 [tap]\n[ 194.167049] handle_tx_zerocopy+0x14e/0x4c0 [vhost_net]\n[ 194.173631] handle_tx+0xcd/0xe0 [vhost_net]\n[ 194.176959] vhost_worker+0x76/0xb0 [vhost]\n[ 194.183667] kthread+0x118/0x140\n[ 194.190358] ret_from_fork+0x1f/0x30\n[ 194.193670] \u003c/TASK\u003e\n\nIn this case calling skb_orphan_frags() updated nr_frags leaving nrfrags\nlocal variable in skb_segment() stale. This resulted in the code hitting\ni \u003e= nrfrags prematurely and trying to move to next frag_skb using\nlist_skb pointer, which was NULL, and caused kernel panic. Move the call\nto zero copy functions before using frags and nr_frags.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: skbuff: skb_segment, Call zero copy functions before using skbuff frags",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-53354"
},
{
"category": "external",
"summary": "RHBZ#2396158",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2396158"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-53354",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-53354"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-53354",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53354"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091721-CVE-2023-53354-771f@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091721-CVE-2023-53354-771f@gregkh/T"
}
],
"release_date": "2025-09-17T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"title": "kernel: skbuff: skb_segment, Call zero copy functions before using skbuff frags"
},
{
"cve": "CVE-2023-53373",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2025-09-18T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2396379"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: seqiv - Handle EBUSY correctly\n\nAs it is seqiv only handles the special return value of EINPROGERSS,\nwhich means that in all other cases it will free data related to the\nrequest.\n\nHowever, as the caller of seqiv may specify MAY_BACKLOG, we also need\nto expect EBUSY and treat it in the same way. Otherwise backlogged\nrequests will trigger a use-after-free.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: crypto: seqiv - Handle EBUSY correctly",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "The flaw is in the seqiv IV generator and can lead to a use-after-free when backlogged crypto requests return -EBUSY. Triggering it is easier locally by flooding the kernel crypto API (e.g. via AF_ALG or many concurrent AEAD requests) because the attacker must create backlog conditions. Remote triggering is much harder and only realistic for specific configurations (for example an in-kernel IPsec/TLS path that uses seqiv for AEAD). In practice this means an unprivileged local user with access to the kernel crypto interface is the most likely threat vector, while a remote attacker would need the target to both use seqiv and be inducible into heavy crypto backlog.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-53373"
},
{
"category": "external",
"summary": "RHBZ#2396379",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2396379"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-53373",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-53373"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-53373",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53373"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091855-CVE-2023-53373-087e@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091855-CVE-2023-53373-087e@gregkh/T"
}
],
"release_date": "2025-09-18T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: crypto: seqiv - Handle EBUSY correctly"
},
{
"cve": "CVE-2023-53386",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2025-09-18T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2396419"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: Fix potential use-after-free when clear keys\n\nSimilar to commit c5d2b6fa26b5 (\"Bluetooth: Fix use-after-free in\nhci_remove_ltk/hci_remove_irk\"). We can not access k after kfree_rcu()\ncall.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Bluetooth: Fix potential use-after-free when clear keys",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "A use-after-free bug was identified in the Bluetooth stack when clearing link and security keys. The code iterated with list_for_each_entry() and freed items with kfree_rcu(), allowing access to freed memory.\nA local user with Bluetooth administration privileges (e.g. able to unpair devices, reset the adapter or manage stored keys) can reliably trigger this bug, causing use-after-free and likely DoS/kernel crash. And the confidential data leakage from freed memory is theoretically possible. Triggering this remotely is difficult \u2014 an unauthenticated/unknown device generally cannot force the kernel to clear those local key lists \u2014 and would realistically require a device that is already paired/authenticated (or otherwise an exploit chain) to influence the same code paths.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-53386"
},
{
"category": "external",
"summary": "RHBZ#2396419",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2396419"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-53386",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-53386"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-53386",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53386"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091857-CVE-2023-53386-8ab2@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091857-CVE-2023-53386-8ab2@gregkh/T"
}
],
"release_date": "2025-09-18T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
},
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"details": "Moderate"
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],
"title": "kernel: Bluetooth: Fix potential use-after-free when clear keys"
},
{
"cve": "CVE-2024-58240",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2025-08-28T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2391431"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\ntls: separate no-async decryption request handling from async\n\nIf we\u0027re not doing async, the handling is much simpler. There\u0027s no\nreference counting, we just need to wait for the completion to wake us\nup and return its result.\n\nWe should preferably also use a separate crypto_wait. I\u0027m not seeing a\nUAF as I did in the past, I think aec7961916f3 (\"tls: fix race between\nasync notify and socket close\") took care of it.\n\nThis will make the next fix easier.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: tls: separate no-async decryption request handling from async",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This patch refactors TLS RX decryption to use a separate, stack-local crypto_wait for the non-async path and bypass the async reference-counting/notification logic. It doesn\u2019t fix a user-triggerable bug by itself; it\u2019s a correctness/simplification change that reduces coupling and prepares the ground for a follow-up fix (\u201ctls: fix use-after-free on failed backlog decryption\u201d). No externally exploitable behavior changes are introduced.\nThe bug is actual for the older versions of Red Hat Enterprise Linux (before 9.3 and for all versions of the Red Hat Enterprise Linux 8) where patch aec7961916f3 \"tls: fix race between async notify and socket close\" not backported yet.\nThe CVSS being calculated for worse case scenario where the previous patch aec7961916f3 not applied yet (that leads to the use after free possibility).",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2024-58240"
},
{
"category": "external",
"summary": "RHBZ#2391431",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2391431"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2024-58240",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-58240"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2024-58240",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-58240"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025082836-CVE-2024-58240-b2b3@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025082836-CVE-2024-58240-b2b3@gregkh/T"
}
],
"release_date": "2025-08-28T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: tls: separate no-async decryption request handling from async"
},
{
"cve": "CVE-2025-22026",
"cwe": {
"id": "CWE-252",
"name": "Unchecked Return Value"
},
"discovery_date": "2025-04-16T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2360224"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: don\u0027t ignore the return code of svc_proc_register()\n\nCurrently, nfsd_proc_stat_init() ignores the return value of\nsvc_proc_register(). If the procfile creation fails, then the kernel\nwill WARN when it tries to remove the entry later.\n\nFix nfsd_proc_stat_init() to return the same type of pointer as\nsvc_proc_register(), and fix up nfsd_net_init() to check that and fail\nthe nfsd_net construction if it occurs.\n\nsvc_proc_register() can fail if the dentry can\u0027t be allocated, or if an\nidentical dentry already exists. The second case is pretty unlikely in\nthe nfsd_net construction codepath, so if this happens, return -ENOMEM.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: nfsd: don\u0027t ignore the return code of svc_proc_register()",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-22026"
},
{
"category": "external",
"summary": "RHBZ#2360224",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2360224"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-22026",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-22026"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-22026",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-22026"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025041654-CVE-2025-22026-f6be@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025041654-CVE-2025-22026-f6be@gregkh/T"
}
],
"release_date": "2025-04-16T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
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{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: nfsd: don\u0027t ignore the return code of svc_proc_register()"
},
{
"cve": "CVE-2025-22058",
"cwe": {
"id": "CWE-190",
"name": "Integer Overflow or Wraparound"
},
"discovery_date": "2025-04-16T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2360276"
}
],
"notes": [
{
"category": "description",
"text": "A memory overflow vulnerability exists within the Linux kernel\u0027s networking subsystem. Specifically, an application can set the SO_RCVBUF socket option to its maximum value (INT_MAX), which triggers an integer overflow within the udp_rmem_release() function during socket closure. The udp_destruct_common() purges its receive queue and sums up skb-\u003etruesize in the queue. This total is calculated and stored in a local unsigned integer variable. The total size is then passed to udp_rmem_release() to adjust memory accounting. Due to the function taking a signed integer argument, the total size can wrap around, causing a memory overflow condition, potentially leading to system instability.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: udp: Fix memory accounting leak.",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-22058"
},
{
"category": "external",
"summary": "RHBZ#2360276",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2360276"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-22058",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-22058"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-22058",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-22058"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025041606-CVE-2025-22058-045a@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025041606-CVE-2025-22058-045a@gregkh/T"
}
],
"release_date": "2025-04-16T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
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"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: udp: Fix memory accounting leak."
},
{
"cve": "CVE-2025-37797",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2025-05-02T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2363672"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet_sched: hfsc: Fix a UAF vulnerability in class handling\n\nThis patch fixes a Use-After-Free vulnerability in the HFSC qdisc class\nhandling. The issue occurs due to a time-of-check/time-of-use condition\nin hfsc_change_class() when working with certain child qdiscs like netem\nor codel.\n\nThe vulnerability works as follows:\n1. hfsc_change_class() checks if a class has packets (q.qlen != 0)\n2. It then calls qdisc_peek_len(), which for certain qdiscs (e.g.,\n codel, netem) might drop packets and empty the queue\n3. The code continues assuming the queue is still non-empty, adding\n the class to vttree\n4. This breaks HFSC scheduler assumptions that only non-empty classes\n are in vttree\n5. Later, when the class is destroyed, this can lead to a Use-After-Free\n\nThe fix adds a second queue length check after qdisc_peek_len() to verify\nthe queue wasn\u0027t emptied.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net_sched: hfsc: Fix a UAF vulnerability in class handling",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "The bug could happen only when qdisc with child qdiscs like netem or codel being used.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-37797"
},
{
"category": "external",
"summary": "RHBZ#2363672",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2363672"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-37797",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37797"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-37797",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37797"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025050210-CVE-2025-37797-2aab@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025050210-CVE-2025-37797-2aab@gregkh/T"
}
],
"release_date": "2025-05-02T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"url": "https://access.redhat.com/errata/RHSA-2025:22752"
},
{
"category": "workaround",
"details": "To mitigate this issue, prevent module sch_hfsc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.",
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"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
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"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: net_sched: hfsc: Fix a UAF vulnerability in class handling"
},
{
"cve": "CVE-2025-37914",
"cwe": {
"id": "CWE-123",
"name": "Write-what-where Condition"
},
"discovery_date": "2025-05-20T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2367500"
}
],
"notes": [
{
"category": "description",
"text": "A use-after-free vulnerability was found in the Linux kernel\u2019s `netem` qdisc. This issue occurs when it incorrectly manages duplicated packets in classful parent qdiscs. This leads to a corrupted internal state and eventual dereferencing of freed memory, resulting in unpredictable behavior, system instability, or a crash.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net_sched: ets: Fix double list add in class with netem as child qdisc",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "A logic flaw in the ETS (Enhanced Transmission Selection) scheduler in the Linux kernel\u2019s net/sched subsystem allows the same class to be added twice to the active list if the enqueue callback is reentered, for example due to a netem child.\n\nAlthough no UAF occurs, this leads to list corruption, which may result in kernel memory corruption, undefined behavior, or system crashes.\n\nTriggering this bug requires a crafted qdisc hierarchy and interaction between ETS and netem.\n\nAn attacker could create memory corruption via list pointers, but turning this into privilege escalation would require further primitives or info leaks.\n\nLikely exploitable for denial-of-service (DoS) in most practical scenarios.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-37914"
},
{
"category": "external",
"summary": "RHBZ#2367500",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2367500"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-37914",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37914"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-37914",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37914"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025052000-CVE-2025-37914-1a4f@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025052000-CVE-2025-37914-1a4f@gregkh/T"
}
],
"release_date": "2025-05-20T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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{
"category": "impact",
"details": "Moderate"
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"title": "kernel: net_sched: ets: Fix double list add in class with netem as child qdisc"
},
{
"cve": "CVE-2025-38200",
"cwe": {
"id": "CWE-191",
"name": "Integer Underflow (Wrap or Wraparound)"
},
"discovery_date": "2025-07-04T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2376392"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\ni40e: fix MMIO write access to an invalid page in i40e_clear_hw\n\nWhen the device sends a specific input, an integer underflow can occur, leading\nto MMIO write access to an invalid page.\n\nPrevent the integer underflow by changing the type of related variables.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: i40e: fix MMIO write access to an invalid page in i40e_clear_hw",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-38200"
},
{
"category": "external",
"summary": "RHBZ#2376392",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2376392"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-38200",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38200"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-38200",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38200"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025070418-CVE-2025-38200-47d9@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025070418-CVE-2025-38200-47d9@gregkh/T"
}
],
"release_date": "2025-07-04T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
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],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: i40e: fix MMIO write access to an invalid page in i40e_clear_hw"
},
{
"cve": "CVE-2025-38211",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2025-07-04T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2376406"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/iwcm: Fix use-after-free of work objects after cm_id destruction\n\nThe commit 59c68ac31e15 (\"iw_cm: free cm_id resources on the last\nderef\") simplified cm_id resource management by freeing cm_id once all\nreferences to the cm_id were removed. The references are removed either\nupon completion of iw_cm event handlers or when the application destroys\nthe cm_id. This commit introduced the use-after-free condition where\ncm_id_private object could still be in use by event handler works during\nthe destruction of cm_id. The commit aee2424246f9 (\"RDMA/iwcm: Fix a\nuse-after-free related to destroying CM IDs\") addressed this use-after-\nfree by flushing all pending works at the cm_id destruction.\n\nHowever, still another use-after-free possibility remained. It happens\nwith the work objects allocated for each cm_id_priv within\nalloc_work_entries() during cm_id creation, and subsequently freed in\ndealloc_work_entries() once all references to the cm_id are removed.\nIf the cm_id\u0027s last reference is decremented in the event handler work,\nthe work object for the work itself gets removed, and causes the use-\nafter-free BUG below:\n\n BUG: KASAN: slab-use-after-free in __pwq_activate_work+0x1ff/0x250\n Read of size 8 at addr ffff88811f9cf800 by task kworker/u16:1/147091\n\n CPU: 2 UID: 0 PID: 147091 Comm: kworker/u16:1 Not tainted 6.15.0-rc2+ #27 PREEMPT(voluntary)\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-3.fc41 04/01/2014\n Workqueue: 0x0 (iw_cm_wq)\n Call Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x6a/0x90\n print_report+0x174/0x554\n ? __virt_addr_valid+0x208/0x430\n ? __pwq_activate_work+0x1ff/0x250\n kasan_report+0xae/0x170\n ? __pwq_activate_work+0x1ff/0x250\n __pwq_activate_work+0x1ff/0x250\n pwq_dec_nr_in_flight+0x8c5/0xfb0\n process_one_work+0xc11/0x1460\n ? __pfx_process_one_work+0x10/0x10\n ? assign_work+0x16c/0x240\n worker_thread+0x5ef/0xfd0\n ? __pfx_worker_thread+0x10/0x10\n kthread+0x3b0/0x770\n ? __pfx_kthread+0x10/0x10\n ? rcu_is_watching+0x11/0xb0\n ? _raw_spin_unlock_irq+0x24/0x50\n ? rcu_is_watching+0x11/0xb0\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x30/0x70\n ? __pfx_kthread+0x10/0x10\n ret_from_fork_asm+0x1a/0x30\n \u003c/TASK\u003e\n\n Allocated by task 147416:\n kasan_save_stack+0x2c/0x50\n kasan_save_track+0x10/0x30\n __kasan_kmalloc+0xa6/0xb0\n alloc_work_entries+0xa9/0x260 [iw_cm]\n iw_cm_connect+0x23/0x4a0 [iw_cm]\n rdma_connect_locked+0xbfd/0x1920 [rdma_cm]\n nvme_rdma_cm_handler+0x8e5/0x1b60 [nvme_rdma]\n cma_cm_event_handler+0xae/0x320 [rdma_cm]\n cma_work_handler+0x106/0x1b0 [rdma_cm]\n process_one_work+0x84f/0x1460\n worker_thread+0x5ef/0xfd0\n kthread+0x3b0/0x770\n ret_from_fork+0x30/0x70\n ret_from_fork_asm+0x1a/0x30\n\n Freed by task 147091:\n kasan_save_stack+0x2c/0x50\n kasan_save_track+0x10/0x30\n kasan_save_free_info+0x37/0x60\n __kasan_slab_free+0x4b/0x70\n kfree+0x13a/0x4b0\n dealloc_work_entries+0x125/0x1f0 [iw_cm]\n iwcm_deref_id+0x6f/0xa0 [iw_cm]\n cm_work_handler+0x136/0x1ba0 [iw_cm]\n process_one_work+0x84f/0x1460\n worker_thread+0x5ef/0xfd0\n kthread+0x3b0/0x770\n ret_from_fork+0x30/0x70\n ret_from_fork_asm+0x1a/0x30\n\n Last potentially related work creation:\n kasan_save_stack+0x2c/0x50\n kasan_record_aux_stack+0xa3/0xb0\n __queue_work+0x2ff/0x1390\n queue_work_on+0x67/0xc0\n cm_event_handler+0x46a/0x820 [iw_cm]\n siw_cm_upcall+0x330/0x650 [siw]\n siw_cm_work_handler+0x6b9/0x2b20 [siw]\n process_one_work+0x84f/0x1460\n worker_thread+0x5ef/0xfd0\n kthread+0x3b0/0x770\n ret_from_fork+0x30/0x70\n ret_from_fork_asm+0x1a/0x30\n\nThis BUG is reproducible by repeating the blktests test case nvme/061\nfor the rdma transport and the siw driver.\n\nTo avoid the use-after-free of cm_id_private work objects, ensure that\nthe last reference to the cm_id is decremented not in the event handler\nworks, but in the cm_id destruction context. For that purpose, mo\n---truncated---",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "A use-after-free occurs when a cm_id\u0027s last reference is released from within a work item that still depends on it, resulting in a crash in __pwq_activate_work(). This race condition was reproducible via RDMA/siw transport using repeated execution of blktests nvme/061, demonstrating that deallocation of work entries must not occur from within the active work context. The CVSS Privileges Required (PR:L) rating reflects that RDMA stack access is needed, but not full root privileges, to trigger this memory corruption issue. The vulnerability does not lead to information leakage or data corruption, but results in a use-after-free crash within the kernel\u0027s RDMA workqueue processing. Therefore, for the CVSS only availability is impacted and Integrity/Confidentiality are Low (potentially impacted). As the bug causes a kernel panic or crash when triggered, the impact is rated as High on Availability.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-38211"
},
{
"category": "external",
"summary": "RHBZ#2376406",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2376406"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-38211",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38211"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-38211",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38211"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025070422-CVE-2025-38211-215a@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025070422-CVE-2025-38211-215a@gregkh/T"
}
],
"release_date": "2025-07-04T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"url": "https://access.redhat.com/errata/RHSA-2025:22752"
},
{
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"details": "To mitigate this issue, prevent InfiniBand modules from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically. The names of the modules are: ib_addr, ib_cm, ib_core, ib_mad, ib_sa, ib_ucm, ib_umad, iw_cm.",
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{
"cvss_v3": {
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"attackVector": "LOCAL",
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"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
"version": "3.1"
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"threats": [
{
"category": "impact",
"details": "Moderate"
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],
"title": "kernel: RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction"
},
{
"cve": "CVE-2025-38332",
"cwe": {
"id": "CWE-170",
"name": "Improper Null Termination"
},
"discovery_date": "2025-07-10T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2379246"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: lpfc: Use memcpy() for BIOS version\n\nThe strlcat() with FORTIFY support is triggering a panic because it\nthinks the target buffer will overflow although the correct target\nbuffer size is passed in.\n\nAnyway, instead of memset() with 0 followed by a strlcat(), just use\nmemcpy() and ensure that the resulting buffer is NULL terminated.\n\nBIOSVersion is only used for the lpfc_printf_log() which expects a\nproperly terminated string.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: scsi: lpfc: Use memcpy() for BIOS version",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-38332"
},
{
"category": "external",
"summary": "RHBZ#2379246",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2379246"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-38332",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38332"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-38332",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38332"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025071033-CVE-2025-38332-9590@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025071033-CVE-2025-38332-9590@gregkh/T"
}
],
"release_date": "2025-07-10T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"url": "https://access.redhat.com/errata/RHSA-2025:22752"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: scsi: lpfc: Use memcpy() for BIOS version"
},
{
"cve": "CVE-2025-38449",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2025-07-25T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2383519"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/gem: Acquire references on GEM handles for framebuffers\n\nA GEM handle can be released while the GEM buffer object is attached\nto a DRM framebuffer. This leads to the release of the dma-buf backing\nthe buffer object, if any. [1] Trying to use the framebuffer in further\nmode-setting operations leads to a segmentation fault. Most easily\nhappens with driver that use shadow planes for vmap-ing the dma-buf\nduring a page flip. An example is shown below.\n\n[ 156.791968] ------------[ cut here ]------------\n[ 156.796830] WARNING: CPU: 2 PID: 2255 at drivers/dma-buf/dma-buf.c:1527 dma_buf_vmap+0x224/0x430\n[...]\n[ 156.942028] RIP: 0010:dma_buf_vmap+0x224/0x430\n[ 157.043420] Call Trace:\n[ 157.045898] \u003cTASK\u003e\n[ 157.048030] ? show_trace_log_lvl+0x1af/0x2c0\n[ 157.052436] ? show_trace_log_lvl+0x1af/0x2c0\n[ 157.056836] ? show_trace_log_lvl+0x1af/0x2c0\n[ 157.061253] ? drm_gem_shmem_vmap+0x74/0x710\n[ 157.065567] ? dma_buf_vmap+0x224/0x430\n[ 157.069446] ? __warn.cold+0x58/0xe4\n[ 157.073061] ? dma_buf_vmap+0x224/0x430\n[ 157.077111] ? report_bug+0x1dd/0x390\n[ 157.080842] ? handle_bug+0x5e/0xa0\n[ 157.084389] ? exc_invalid_op+0x14/0x50\n[ 157.088291] ? asm_exc_invalid_op+0x16/0x20\n[ 157.092548] ? dma_buf_vmap+0x224/0x430\n[ 157.096663] ? dma_resv_get_singleton+0x6d/0x230\n[ 157.101341] ? __pfx_dma_buf_vmap+0x10/0x10\n[ 157.105588] ? __pfx_dma_resv_get_singleton+0x10/0x10\n[ 157.110697] drm_gem_shmem_vmap+0x74/0x710\n[ 157.114866] drm_gem_vmap+0xa9/0x1b0\n[ 157.118763] drm_gem_vmap_unlocked+0x46/0xa0\n[ 157.123086] drm_gem_fb_vmap+0xab/0x300\n[ 157.126979] drm_atomic_helper_prepare_planes.part.0+0x487/0xb10\n[ 157.133032] ? lockdep_init_map_type+0x19d/0x880\n[ 157.137701] drm_atomic_helper_commit+0x13d/0x2e0\n[ 157.142671] ? drm_atomic_nonblocking_commit+0xa0/0x180\n[ 157.147988] drm_mode_atomic_ioctl+0x766/0xe40\n[...]\n[ 157.346424] ---[ end trace 0000000000000000 ]---\n\nAcquiring GEM handles for the framebuffer\u0027s GEM buffer objects prevents\nthis from happening. The framebuffer\u0027s cleanup later puts the handle\nreferences.\n\nCommit 1a148af06000 (\"drm/gem-shmem: Use dma_buf from GEM object\ninstance\") triggers the segmentation fault easily by using the dma-buf\nfield more widely. The underlying issue with reference counting has\nbeen present before.\n\nv2:\n- acquire the handle instead of the BO (Christian)\n- fix comment style (Christian)\n- drop the Fixes tag (Christian)\n- rename err_ gotos\n- add missing Link tag",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: drm/gem: Acquire references on GEM handles for framebuffers",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability is a use-after-free in the DRM subsystem, where a GEM handle may be released while still in use by a framebuffer. A local unprivileged user with access to /dev/dri/card0 can trigger this bug by closing a GEM handle prematurely and then initiating a modeset operation, leading to a kernel crash.\n\nA clear Denial-of-Service scenario involves creating a framebuffer with a GEM object, releasing the handle from user space, and then triggering a page flip, causing a crash via dma_buf_vmap().\n\nThis vulnerability is only relevant on systems where Direct Rendering Infrastructure (DRI) is in use, typically on desktop environments or graphical workstations with active GPU drivers (e.g., amdgpu, i915, nouveau). If the system does not use DRI-based graphics or lacks a graphical environment altogether (e.g., headless servers), the issue is not practically exploitable.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-38449"
},
{
"category": "external",
"summary": "RHBZ#2383519",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2383519"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-38449",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38449"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-38449",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38449"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025072504-CVE-2025-38449-cbf0@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025072504-CVE-2025-38449-cbf0@gregkh/T"
}
],
"release_date": "2025-07-25T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H",
"version": "3.1"
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"title": "kernel: drm/gem: Acquire references on GEM handles for framebuffers"
},
{
"cve": "CVE-2025-38461",
"cwe": {
"id": "CWE-664",
"name": "Improper Control of a Resource Through its Lifetime"
},
"discovery_date": "2025-07-25T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2383513"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock: Fix transport_* TOCTOU\n\nTransport assignment may race with module unload. Protect new_transport\nfrom becoming a stale pointer.\n\nThis also takes care of an insecure call in vsock_use_local_transport();\nadd a lockdep assert.\n\nBUG: unable to handle page fault for address: fffffbfff8056000\nOops: Oops: 0000 [#1] SMP KASAN\nRIP: 0010:vsock_assign_transport+0x366/0x600\nCall Trace:\n vsock_connect+0x59c/0xc40\n __sys_connect+0xe8/0x100\n __x64_sys_connect+0x6e/0xc0\n do_syscall_64+0x92/0x1c0\n entry_SYSCALL_64_after_hwframe+0x4b/0x53",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: vsock: Fix transport_* TOCTOU",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This patch addresses a race condition in the vsock core that could lead to a use-after-free or NULL pointer dereference when assigning transports during socket initialization.\nThe vulnerability stems from a lack of synchronization between transport selection and potential module unloading, leading to stale pointers being dereferenced.\nA mutex now protects access to the transport selection logic, and reference counting ensures the module is retained during use.\nThe issue has low impact on confidentiality, but may cause a system crash, resulting in high availability impact.\nSince the problem is reachable by unprivileged users via socket operations, Privileges Required = Low (for the CVSS).\nWhile the issue is most clearly triggered during manual module unload, similar conditions can also arise from automatic module unloading, hotplug scripts, or asynchronous transport (de)registration in multi-threaded environments.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-38461"
},
{
"category": "external",
"summary": "RHBZ#2383513",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2383513"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-38461",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38461"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-38461",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38461"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025072507-CVE-2025-38461-33b1@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025072507-CVE-2025-38461-33b1@gregkh/T"
}
],
"release_date": "2025-07-25T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"restart_required": {
"category": "machine"
},
"url": "https://access.redhat.com/errata/RHSA-2025:22752"
},
{
"category": "workaround",
"details": "To mitigate this issue, prevent module vsock from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.",
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{
"cvss_v3": {
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"attackVector": "LOCAL",
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"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H",
"version": "3.1"
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: vsock: Fix transport_* TOCTOU"
},
{
"cve": "CVE-2025-38477",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2025-07-28T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2383922"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: sch_qfq: Fix race condition on qfq_aggregate\n\nA race condition can occur when \u0027agg\u0027 is modified in qfq_change_agg\n(called during qfq_enqueue) while other threads access it\nconcurrently. For example, qfq_dump_class may trigger a NULL\ndereference, and qfq_delete_class may cause a use-after-free.\n\nThis patch addresses the issue by:\n\n1. Moved qfq_destroy_class into the critical section.\n\n2. Added sch_tree_lock protection to qfq_dump_class and\nqfq_dump_class_stats.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net/sched: sch_qfq: Fix race condition on qfq_aggregate",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This patch fixes a race condition in the QFQ packet scheduler, where concurrent modification and access to cl-\u003eagg may result in a use-after-free or NULL pointer dereference.\nThe bug occurs when qfq_change_class() reassigns the agg pointer while other threads read it in qfq_dump_class() or qfq_delete_class().\nThe fix synchronizes access using sch_tree_lock() and reorders destruction logic to avoid concurrency issues.\nThis issue can be triggered locally by users with CAP_NET_ADMIN privileges and may lead to kernel crashes or denial-of-service.\nAlthough the vulnerability involves a use-after-free, it only results in stale reads of deallocated memory, used in netlink reporting functions.\nThere is no write primitive, function pointer corruption, or kernel state modification, making privilege escalation infeasible in this case.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-38477"
},
{
"category": "external",
"summary": "RHBZ#2383922",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2383922"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-38477",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38477"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-38477",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38477"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025072813-CVE-2025-38477-8b42@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025072813-CVE-2025-38477-8b42@gregkh/T"
}
],
"release_date": "2025-07-28T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"url": "https://access.redhat.com/errata/RHSA-2025:22752"
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H",
"version": "3.1"
},
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"category": "impact",
"details": "Moderate"
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"title": "kernel: net/sched: sch_qfq: Fix race condition on qfq_aggregate"
},
{
"cve": "CVE-2025-38498",
"discovery_date": "2025-07-30T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2384422"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\ndo_change_type(): refuse to operate on unmounted/not ours mounts\n\nEnsure that propagation settings can only be changed for mounts located\nin the caller\u0027s mount namespace. This change aligns permission checking\nwith the rest of mount(2).",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: do_change_type(): refuse to operate on unmounted/not ours mounts",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "A flaw in do_change_type() allowed a process to change mount propagation flags on mounts outside its own mount namespace, breaking expected isolation guarantees. This could enable a local attacker with mount privileges to disrupt or alter mount behavior in other namespaces, potentially causing system-wide denial of service.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-38498"
},
{
"category": "external",
"summary": "RHBZ#2384422",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2384422"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-38498",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38498"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-38498",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38498"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025073029-CVE-2025-38498-e3ab@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025073029-CVE-2025-38498-e3ab@gregkh/T"
}
],
"release_date": "2025-07-30T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: do_change_type(): refuse to operate on unmounted/not ours mounts"
},
{
"cve": "CVE-2025-38527",
"cwe": {
"id": "CWE-825",
"name": "Expired Pointer Dereference"
},
"discovery_date": "2025-08-16T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2388928"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix use-after-free in cifs_oplock_break\n\nA race condition can occur in cifs_oplock_break() leading to a\nuse-after-free of the cinode structure when unmounting:\n\n cifs_oplock_break()\n _cifsFileInfo_put(cfile)\n cifsFileInfo_put_final()\n cifs_sb_deactive()\n [last ref, start releasing sb]\n kill_sb()\n kill_anon_super()\n generic_shutdown_super()\n evict_inodes()\n dispose_list()\n evict()\n destroy_inode()\n call_rcu(\u0026inode-\u003ei_rcu, i_callback)\n spin_lock(\u0026cinode-\u003eopen_file_lock) \u003c- OK\n [later] i_callback()\n cifs_free_inode()\n kmem_cache_free(cinode)\n spin_unlock(\u0026cinode-\u003eopen_file_lock) \u003c- UAF\n cifs_done_oplock_break(cinode) \u003c- UAF\n\nThe issue occurs when umount has already released its reference to the\nsuperblock. When _cifsFileInfo_put() calls cifs_sb_deactive(), this\nreleases the last reference, triggering the immediate cleanup of all\ninodes under RCU. However, cifs_oplock_break() continues to access the\ncinode after this point, resulting in use-after-free.\n\nFix this by holding an extra reference to the superblock during the\nentire oplock break operation. This ensures that the superblock and\nits inodes remain valid until the oplock break completes.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: smb: client: fix use-after-free in cifs_oplock_break",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-38527"
},
{
"category": "external",
"summary": "RHBZ#2388928",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2388928"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-38527",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38527"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-38527",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38527"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025081654-CVE-2025-38527-c389@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025081654-CVE-2025-38527-c389@gregkh/T"
}
],
"release_date": "2025-08-16T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
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"details": "Moderate"
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"title": "kernel: smb: client: fix use-after-free in cifs_oplock_break"
},
{
"cve": "CVE-2025-38556",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"discovery_date": "2025-08-19T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2389456"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: core: Harden s32ton() against conversion to 0 bits\n\nTesting by the syzbot fuzzer showed that the HID core gets a\nshift-out-of-bounds exception when it tries to convert a 32-bit\nquantity to a 0-bit quantity. Ideally this should never occur, but\nthere are buggy devices and some might have a report field with size\nset to zero; we shouldn\u0027t reject the report or the device just because\nof that.\n\nInstead, harden the s32ton() routine so that it returns a reasonable\nresult instead of crashing when it is called with the number of bits\nset to 0 -- the same as what snto32() does.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: HID: core: Harden s32ton() against conversion to 0 bits",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "HID core could crash on malformed devices that define a 0-bit report field, causing a shift-out-of-bounds in s32ton(). Exploitation requires only connecting a malicious HID device (no privileges or user interaction), leading to kernel crash.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-38556"
},
{
"category": "external",
"summary": "RHBZ#2389456",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2389456"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-38556",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38556"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-38556",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38556"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025081905-CVE-2025-38556-521e@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025081905-CVE-2025-38556-521e@gregkh/T"
}
],
"release_date": "2025-08-19T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
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"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
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"details": "Moderate"
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"title": "kernel: HID: core: Harden s32ton() against conversion to 0 bits"
},
{
"cve": "CVE-2025-39697",
"cwe": {
"id": "CWE-362",
"name": "Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)"
},
"discovery_date": "2025-09-05T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2393481"
}
],
"notes": [
{
"category": "description",
"text": "A flaw use after free in the Linux kernel NFS functionality was found in the way connected user sends malicious data to the server. A remote user could use this flaw to crash the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: NFS: Fix a race when updating an existing write",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "A race condition in the NFS write path allowed a request to be removed after it was checked but before the page-group lock was taken. The fix acquires the page-group lock earlier and holds it across request removal, preventing use-after-state races. This can be triggered by a client with write access to an export and may lead to a kernel crash (remote DoS).\nThis race condition is difficult to trigger in practice, as it requires several conditions to align (concurrent write activity and timing), and there is no evidence of remote control over memory contents. Therefore the most likely outcome is a denial of service (Availability: High), with Confidentiality and Integrity unaffected.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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},
{
"category": "external",
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2393481"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-39697",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39697"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-39697",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39697"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025090548-CVE-2025-39697-5284@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025090548-CVE-2025-39697-5284@gregkh/T"
}
],
"release_date": "2025-09-05T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: NFS: Fix a race when updating an existing write"
},
{
"cve": "CVE-2025-39730",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"discovery_date": "2025-09-07T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2393731"
}
],
"notes": [
{
"category": "description",
"text": "A flaw out of boundary read in the Linux kernel NFS functionality was found in the way connected user sends malicious data to the server. A remote user could use this flaw to crash the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry()",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "A flaw was found in the NFS server implementation where nfs_fh_to_dentry() failed to properly validate the minimal filehandle length before accessing the embedded structure. An attacker with access to an exported NFS share could send a crafted filehandle, leading to out-of-bounds memory access and a potential kernel crash. This issue results in a remote denial of service against the NFS server.\nThis flaw is limited to a missing bounds check in nfs_fh_to_dentry(), which causes an out-of-bounds read and a kernel crash.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-39730"
},
{
"category": "external",
"summary": "RHBZ#2393731",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2393731"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-39730",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39730"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-39730",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39730"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025090730-CVE-2025-39730-72c9@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025090730-CVE-2025-39730-72c9@gregkh/T"
}
],
"release_date": "2025-09-07T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
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"version": "3.1"
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"title": "kernel: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry()"
},
{
"cve": "CVE-2025-39751",
"cwe": {
"id": "CWE-120",
"name": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)"
},
"discovery_date": "2025-09-11T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2394624"
}
],
"notes": [
{
"category": "description",
"text": "This CVE has been marked as Rejected by the assigning CNA.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Linux kernel ALSA hda/ca0132 buffer overflow",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-39751"
},
{
"category": "external",
"summary": "RHBZ#2394624",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2394624"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-39751",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39751"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-39751",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39751"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091142-CVE-2025-39751-c340@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091142-CVE-2025-39751-c340@gregkh/T"
}
],
"release_date": "2025-09-11T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"title": "kernel: Linux kernel ALSA hda/ca0132 buffer overflow"
},
{
"cve": "CVE-2025-39864",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2025-09-19T00:00:00+00:00",
"ids": [
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"system_name": "Red Hat Bugzilla ID",
"text": "2396934"
}
],
"notes": [
{
"category": "description",
"text": "A use after free vulnerbility exists in the linux kernel wifi module in the cmp_bss() function,an attacker could create a crafted payload to trigger, leading to damage availability and integrity of the system",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: wifi: cfg80211: fix use-after-free in cmp_bss()",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "A use-after-free issue was discovered in the cfg80211 subsystem, caused by freeing beacon_ies structures even when they were still referenced through hidden_beacon_bss.\nExploitation requires local access with capabilities to manage Wi-Fi interfaces (e.g., via nl80211) and is unlikely under normal conditions.\nThe vulnerability could theoretically lead to kernel memory corruption or privilege escalation, though the trigger is complex.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-39864"
},
{
"category": "external",
"summary": "RHBZ#2396934",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2396934"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-39864",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39864"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-39864",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39864"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091906-CVE-2025-39864-a3a2@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091906-CVE-2025-39864-a3a2@gregkh/T"
}
],
"release_date": "2025-09-19T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-04T12:50:07+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"restart_required": {
"category": "machine"
},
"url": "https://access.redhat.com/errata/RHSA-2025:22752"
},
{
"category": "workaround",
"details": "Mitigation for this issue is either not available or the currently available options don\u0027t meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
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{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: wifi: cfg80211: fix use-after-free in cmp_bss()"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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