RHSA-2025:23463
Vulnerability from csaf_redhat - Published: 2025-12-17 15:04 - Updated: 2025-12-23 00:02Summary
Red Hat Security Advisory: kernel security update
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 Important. 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: ethtool: check device is present when getting link settings (CVE-2024-46679)
* kernel: ALSA: usb-audio: Validate UAC3 power domain descriptors, too (CVE-2025-38729)
* kernel: sctp: linearize cloned gso packets in sctp_rcv (CVE-2025-38718)
* kernel: nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm() (CVE-2025-38724)
* kernel: ALSA: usb-audio: Validate UAC3 cluster segment descriptors (CVE-2025-39757)
* kernel: wifi: mwifiex: Fix OOB and integer underflow when rx packets (CVE-2023-53226)
* kernel: Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp (CVE-2023-53297)
* kernel: scsi: qla2xxx: Wait for io return on terminate rport (CVE-2023-53322)
* kernel: ip6mr: Fix skb_under_panic in ip6mr_cache_report() (CVE-2023-53365)
* kernel: RDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device (CVE-2023-53393)
* kernel: iomap: iomap: fix memory corruption when recording errors during writeback (CVE-2022-50406)
* kernel: scsi: lpfc: Fix buffer free/clear order in deferred receive path (CVE-2025-39841)
* kernel: tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect() (CVE-2025-39955)
* kernel: tcp: Don't call reqsk_fastopen_remove() in tcp_conn_request() (CVE-2025-40186)
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.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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"name": "Time-of-check Time-of-use (TOCTOU) Race Condition"
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"text": "2396538"
}
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{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\niomap: iomap: fix memory corruption when recording errors during writeback\n\nEvery now and then I see this crash on arm64:\n\nUnable to handle kernel NULL pointer dereference at virtual address 00000000000000f8\nBuffer I/O error on dev dm-0, logical block 8733687, async page read\nMem abort info:\n ESR = 0x0000000096000006\n EC = 0x25: DABT (current EL), IL = 32 bits\n SET = 0, FnV = 0\n EA = 0, S1PTW = 0\n FSC = 0x06: level 2 translation fault\nData abort info:\n ISV = 0, ISS = 0x00000006\n CM = 0, WnR = 0\nuser pgtable: 64k pages, 42-bit VAs, pgdp=0000000139750000\n[00000000000000f8] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000, pmd=0000000000000000\nInternal error: Oops: 96000006 [#1] PREEMPT SMP\nBuffer I/O error on dev dm-0, logical block 8733688, async page read\nDumping ftrace buffer:\nBuffer I/O error on dev dm-0, logical block 8733689, async page read\n (ftrace buffer empty)\nXFS (dm-0): log I/O error -5\nModules linked in: dm_thin_pool dm_persistent_data\nXFS (dm-0): Metadata I/O Error (0x1) detected at xfs_trans_read_buf_map+0x1ec/0x590 [xfs] (fs/xfs/xfs_trans_buf.c:296).\n dm_bio_prison\nXFS (dm-0): Please unmount the filesystem and rectify the problem(s)\nXFS (dm-0): xfs_imap_lookup: xfs_ialloc_read_agi() returned error -5, agno 0\n dm_bufio dm_log_writes xfs nft_chain_nat xt_REDIRECT nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip6t_REJECT\npotentially unexpected fatal signal 6.\n nf_reject_ipv6\npotentially unexpected fatal signal 6.\n ipt_REJECT nf_reject_ipv4\nCPU: 1 PID: 122166 Comm: fsstress Tainted: G W 6.0.0-rc5-djwa #rc5 3004c9f1de887ebae86015f2677638ce51ee7\n rpcsec_gss_krb5 auth_rpcgss xt_tcpudp ip_set_hash_ip ip_set_hash_net xt_set nft_compat ip_set_hash_mac ip_set nf_tables\nHardware name: QEMU KVM Virtual Machine, BIOS 1.5.1 06/16/2021\npstate: 60001000 (nZCv daif -PAN -UAO -TCO -DIT +SSBS BTYPE=--)\n ip_tables\npc : 000003fd6d7df200\n x_tables\nlr : 000003fd6d7df1ec\n overlay nfsv4\nCPU: 0 PID: 54031 Comm: u4:3 Tainted: G W 6.0.0-rc5-djwa #rc5 3004c9f1de887ebae86015f2677638ce51ee7405\nHardware name: QEMU KVM Virtual Machine, BIOS 1.5.1 06/16/2021\nWorkqueue: writeback wb_workfn\nsp : 000003ffd9522fd0\n (flush-253:0)\npstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--)\npc : errseq_set+0x1c/0x100\nx29: 000003ffd9522fd0 x28: 0000000000000023 x27: 000002acefeb6780\nx26: 0000000000000005 x25: 0000000000000001 x24: 0000000000000000\nx23: 00000000ffffffff x22: 0000000000000005\nlr : __filemap_set_wb_err+0x24/0xe0\n x21: 0000000000000006\nsp : fffffe000f80f760\nx29: fffffe000f80f760 x28: 0000000000000003 x27: fffffe000f80f9f8\nx26: 0000000002523000 x25: 00000000fffffffb x24: fffffe000f80f868\nx23: fffffe000f80fbb0 x22: fffffc0180c26a78 x21: 0000000002530000\nx20: 0000000000000000 x19: 0000000000000000 x18: 0000000000000000\n\nx17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000\nx14: 0000000000000001 x13: 0000000000470af3 x12: fffffc0058f70000\nx11: 0000000000000040 x10: 0000000000001b20 x9 : fffffe000836b288\nx8 : fffffc00eb9fd480 x7 : 0000000000f83659 x6 : 0000000000000000\nx5 : 0000000000000869 x4 : 0000000000000005 x3 : 00000000000000f8\nx20: 000003fd6d740020 x19: 000000000001dd36 x18: 0000000000000001\nx17: 000003fd6d78704c x16: 0000000000000001 x15: 000002acfac87668\nx2 : 0000000000000ffa x1 : 00000000fffffffb x0 : 00000000000000f8\nCall trace:\n errseq_set+0x1c/0x100\n __filemap_set_wb_err+0x24/0xe0\n iomap_do_writepage+0x5e4/0xd5c\n write_cache_pages+0x208/0x674\n iomap_writepages+0x34/0x60\n xfs_vm_writepages+0x8c/0xcc [xfs 7a861f39c43631f15d3a5884246ba5035d4ca78b]\nx14: 0000000000000000 x13: 2064656e72757465 x12: 0000000000002180\nx11: 000003fd6d8a82d0 x10: 0000000000000000 x9 : 000003fd6d8ae288\nx8 : 0000000000000083 x7 : 00000000ffffffff x6 : 00000000ffffffee\nx5 : 00000000fbad2887 x4 : 000003fd6d9abb58 x3 : 000003fd6d740020\nx2 : 0000000000000006 x1 : 000000000001dd36 x0 : 0000000000000000\nCPU: \n---truncated---",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: iomap: iomap: fix memory corruption when recording errors during writeback",
"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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{
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"summary": "https://nvd.nist.gov/vuln/detail/CVE-2022-50406",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50406"
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"category": "vendor_fix",
"date": "2025-12-17T15:04:13+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": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:H",
"version": "3.1"
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"title": "kernel: iomap: iomap: fix memory corruption when recording errors during writeback"
},
{
"cve": "CVE-2023-53226",
"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": "2395420"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mwifiex: Fix OOB and integer underflow when rx packets\n\nMake sure mwifiex_process_mgmt_packet,\nmwifiex_process_sta_rx_packet and mwifiex_process_uap_rx_packet,\nmwifiex_uap_queue_bridged_pkt and mwifiex_process_rx_packet\nnot out-of-bounds access the skb-\u003edata buffer.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: wifi: mwifiex: Fix OOB and integer underflow when rx packets",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "A vulnerability in the Marvell mwifiex driver (mwifiex, Marvell Wi-Fi) allows malformed over-the-air frames to trigger out-of-bounds reads and an integer underflow in the RX path, which can crash the kernel or drop packets. Remote code execution is highly unlikely \u2014 the flaw manifests as OOB reads / length miscalculations (leading to OOPS/panic or DoS), not as a controllable arbitrary-write or instruction pointer corruption, so an attacker cannot reliably gain code execution from this bug.\nThis issue only affects systems running the mwifiex driver; if the system does not use Marvell\u2019s mwifiex module there is no exposure.",
"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-2023-53226"
},
{
"category": "external",
"summary": "RHBZ#2395420",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2395420"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-53226",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-53226"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-53226",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53226"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091513-CVE-2023-53226-a44a@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091513-CVE-2023-53226-a44a@gregkh/T"
}
],
"release_date": "2025-09-15T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-17T15:04:13+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-2025:23463"
},
{
"category": "workaround",
"details": "To mitigate this issue, prevent module mwifiex 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": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
"version": "3.1"
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{
"category": "impact",
"details": "Moderate"
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],
"title": "kernel: wifi: mwifiex: Fix OOB and integer underflow when rx packets"
},
{
"cve": "CVE-2023-53297",
"cwe": {
"id": "CWE-832",
"name": "Unlock of a Resource that is not Locked"
},
"discovery_date": "2025-09-16T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2395681"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: fix \"bad unlock balance\" in l2cap_disconnect_rsp\n\nconn-\u003echan_lock isn\u0027t acquired before l2cap_get_chan_by_scid,\nif l2cap_get_chan_by_scid returns NULL, then \u0027bad unlock balance\u0027\nis triggered.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Bluetooth: L2CAP: fix \"bad unlock balance\" in l2cap_disconnect_rsp",
"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-2023-53297"
},
{
"category": "external",
"summary": "RHBZ#2395681",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2395681"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-53297",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-53297"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-53297",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53297"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091627-CVE-2023-53297-8746@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091627-CVE-2023-53297-8746@gregkh/T"
}
],
"release_date": "2025-09-16T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-17T15:04:13+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,
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"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: Bluetooth: L2CAP: fix \"bad unlock balance\" in l2cap_disconnect_rsp"
},
{
"cve": "CVE-2023-53322",
"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": "2395891"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Wait for io return on terminate rport\n\nSystem crash due to use after free.\nCurrent code allows terminate_rport_io to exit before making\nsure all IOs has returned. For FCP-2 device, IO\u0027s can hang\non in HW because driver has not tear down the session in FW at\nfirst sign of cable pull. When dev_loss_tmo timer pops,\nterminate_rport_io is called and upper layer is about to\nfree various resources. Terminate_rport_io trigger qla to do\nthe final cleanup, but the cleanup might not be fast enough where it\nleave qla still holding on to the same resource.\n\nWait for IO\u0027s to return to upper layer before resources are freed.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: scsi: qla2xxx: Wait for io return on terminate rport",
"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-2023-53322"
},
{
"category": "external",
"summary": "RHBZ#2395891",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2395891"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-53322",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-53322"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-53322",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53322"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091644-CVE-2023-53322-45ba@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091644-CVE-2023-53322-45ba@gregkh/T"
}
],
"release_date": "2025-09-16T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-17T15:04:13+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: scsi: qla2xxx: Wait for io return on terminate rport"
},
{
"cve": "CVE-2023-53365",
"cwe": {
"id": "CWE-124",
"name": "Buffer Underwrite (\u0027Buffer Underflow\u0027)"
},
"discovery_date": "2025-09-17T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2396130"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nip6mr: Fix skb_under_panic in ip6mr_cache_report()\n\nskbuff: skb_under_panic: text:ffffffff88771f69 len:56 put:-4\n head:ffff88805f86a800 data:ffff887f5f86a850 tail:0x88 end:0x2c0 dev:pim6reg\n ------------[ cut here ]------------\n kernel BUG at net/core/skbuff.c:192!\n invalid opcode: 0000 [#1] PREEMPT SMP KASAN\n CPU: 2 PID: 22968 Comm: kworker/2:11 Not tainted 6.5.0-rc3-00044-g0a8db05b571a #236\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\n Workqueue: ipv6_addrconf addrconf_dad_work\n RIP: 0010:skb_panic+0x152/0x1d0\n Call Trace:\n \u003cTASK\u003e\n skb_push+0xc4/0xe0\n ip6mr_cache_report+0xd69/0x19b0\n reg_vif_xmit+0x406/0x690\n dev_hard_start_xmit+0x17e/0x6e0\n __dev_queue_xmit+0x2d6a/0x3d20\n vlan_dev_hard_start_xmit+0x3ab/0x5c0\n dev_hard_start_xmit+0x17e/0x6e0\n __dev_queue_xmit+0x2d6a/0x3d20\n neigh_connected_output+0x3ed/0x570\n ip6_finish_output2+0x5b5/0x1950\n ip6_finish_output+0x693/0x11c0\n ip6_output+0x24b/0x880\n NF_HOOK.constprop.0+0xfd/0x530\n ndisc_send_skb+0x9db/0x1400\n ndisc_send_rs+0x12a/0x6c0\n addrconf_dad_completed+0x3c9/0xea0\n addrconf_dad_work+0x849/0x1420\n process_one_work+0xa22/0x16e0\n worker_thread+0x679/0x10c0\n ret_from_fork+0x28/0x60\n ret_from_fork_asm+0x11/0x20\n\nWhen setup a vlan device on dev pim6reg, DAD ns packet may sent on reg_vif_xmit().\nreg_vif_xmit()\n ip6mr_cache_report()\n skb_push(skb, -skb_network_offset(pkt));//skb_network_offset(pkt) is 4\nAnd skb_push declared as:\n\tvoid *skb_push(struct sk_buff *skb, unsigned int len);\n\t\tskb-\u003edata -= len;\n\t\t//0xffff88805f86a84c - 0xfffffffc = 0xffff887f5f86a850\nskb-\u003edata is set to 0xffff887f5f86a850, which is invalid mem addr, lead to skb_push() fails.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: ip6mr: Fix skb_under_panic in ip6mr_cache_report()",
"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-2023-53365"
},
{
"category": "external",
"summary": "RHBZ#2396130",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2396130"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-53365",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-53365"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-53365",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53365"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091723-CVE-2023-53365-acb1@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091723-CVE-2023-53365-acb1@gregkh/T"
}
],
"release_date": "2025-09-17T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-17T15:04:13+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-2025:23463"
},
{
"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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"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: ip6mr: Fix skb_under_panic in ip6mr_cache_report()"
},
{
"cve": "CVE-2023-53393",
"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": "2396376"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device\n\nCurrently, when mlx5_ib_get_hw_stats() is used for device (port_num = 0),\nthere is a special handling in order to use the correct counters, but,\nport_num is being passed down the stack without any change. Also, some\nfunctions assume that port_num \u003e=1. As a result, the following oops can\noccur.\n\n BUG: unable to handle page fault for address: ffff89510294f1a8\n #PF: supervisor write access in kernel mode\n #PF: error_code(0x0002) - not-present page\n PGD 0 P4D 0\n Oops: 0002 [#1] SMP\n CPU: 8 PID: 1382 Comm: devlink Tainted: G W 6.1.0-rc4_for_upstream_base_2022_11_10_16_12 #1\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n RIP: 0010:_raw_spin_lock+0xc/0x20\n Call Trace:\n \u003cTASK\u003e\n mlx5_ib_get_native_port_mdev+0x73/0xe0 [mlx5_ib]\n do_get_hw_stats.constprop.0+0x109/0x160 [mlx5_ib]\n mlx5_ib_get_hw_stats+0xad/0x180 [mlx5_ib]\n ib_setup_device_attrs+0xf0/0x290 [ib_core]\n ib_register_device+0x3bb/0x510 [ib_core]\n ? atomic_notifier_chain_register+0x67/0x80\n __mlx5_ib_add+0x2b/0x80 [mlx5_ib]\n mlx5r_probe+0xb8/0x150 [mlx5_ib]\n ? auxiliary_match_id+0x6a/0x90\n auxiliary_bus_probe+0x3c/0x70\n ? driver_sysfs_add+0x6b/0x90\n really_probe+0xcd/0x380\n __driver_probe_device+0x80/0x170\n driver_probe_device+0x1e/0x90\n __device_attach_driver+0x7d/0x100\n ? driver_allows_async_probing+0x60/0x60\n ? driver_allows_async_probing+0x60/0x60\n bus_for_each_drv+0x7b/0xc0\n __device_attach+0xbc/0x200\n bus_probe_device+0x87/0xa0\n device_add+0x404/0x940\n ? dev_set_name+0x53/0x70\n __auxiliary_device_add+0x43/0x60\n add_adev+0x99/0xe0 [mlx5_core]\n mlx5_attach_device+0xc8/0x120 [mlx5_core]\n mlx5_load_one_devl_locked+0xb2/0xe0 [mlx5_core]\n devlink_reload+0x133/0x250\n devlink_nl_cmd_reload+0x480/0x570\n ? devlink_nl_pre_doit+0x44/0x2b0\n genl_family_rcv_msg_doit.isra.0+0xc2/0x110\n genl_rcv_msg+0x180/0x2b0\n ? devlink_nl_cmd_region_read_dumpit+0x540/0x540\n ? devlink_reload+0x250/0x250\n ? devlink_put+0x50/0x50\n ? genl_family_rcv_msg_doit.isra.0+0x110/0x110\n netlink_rcv_skb+0x54/0x100\n genl_rcv+0x24/0x40\n netlink_unicast+0x1f6/0x2c0\n netlink_sendmsg+0x237/0x490\n sock_sendmsg+0x33/0x40\n __sys_sendto+0x103/0x160\n ? handle_mm_fault+0x10e/0x290\n ? do_user_addr_fault+0x1c0/0x5f0\n __x64_sys_sendto+0x25/0x30\n do_syscall_64+0x3d/0x90\n entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nFix it by setting port_num to 1 in order to get device status and remove\nunused variable.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: RDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "A flaw in mlx5_ib_get_hw_stats() allowed port_num=0 (device-level query) to propagate down the stack, where code paths assumed port_num \u003e= 1, leading to a NULL-pointer dereference and kernel oops during stats collection or device registration. The fix normalizes device queries by forcing port_num=1 before accessing per-port data and removes an unused variable. Exploitation requires local, highly privileged access to the RDMA device stack (e.g., devlink/IB admin), and impact is limited to local DoS.",
"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-2023-53393"
},
{
"category": "external",
"summary": "RHBZ#2396376",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2396376"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-53393",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-53393"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-53393",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53393"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091858-CVE-2023-53393-5e45@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091858-CVE-2023-53393-5e45@gregkh/T"
}
],
"release_date": "2025-09-18T00:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2025-12-17T15:04:13+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": 4.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: RDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device"
},
{
"cve": "CVE-2024-46679",
"cwe": {
"id": "CWE-99",
"name": "Improper Control of Resource Identifiers (\u0027Resource Injection\u0027)"
},
"discovery_date": "2024-09-13T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2312067"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in ethtool in the Linux kernel, where sysfs reader getting link settings can attempt to read the device state on a device that is not present, leading to a crash.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: ethtool: check device is present when getting link settings",
"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-2024-46679"
},
{
"category": "external",
"summary": "RHBZ#2312067",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2312067"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2024-46679",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-46679"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2024-46679",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-46679"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2024091336-CVE-2024-46679-3527@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2024091336-CVE-2024-46679-3527@gregkh/T"
}
],
"release_date": "2024-09-13T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-17T15:04:13+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-2025:23463"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 4.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
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"title": "kernel: ethtool: check device is present when getting link settings"
},
{
"cve": "CVE-2025-38718",
"cwe": {
"id": "CWE-664",
"name": "Improper Control of a Resource Through its Lifetime"
},
"discovery_date": "2025-09-04T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2393166"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: linearize cloned gso packets in sctp_rcv\n\nA cloned head skb still shares these frag skbs in fraglist with the\noriginal head skb. It\u0027s not safe to access these frag skbs.\n\nsyzbot reported two use-of-uninitialized-memory bugs caused by this:\n\n BUG: KMSAN: uninit-value in sctp_inq_pop+0x15b7/0x1920 net/sctp/inqueue.c:211\n sctp_inq_pop+0x15b7/0x1920 net/sctp/inqueue.c:211\n sctp_assoc_bh_rcv+0x1a7/0xc50 net/sctp/associola.c:998\n sctp_inq_push+0x2ef/0x380 net/sctp/inqueue.c:88\n sctp_backlog_rcv+0x397/0xdb0 net/sctp/input.c:331\n sk_backlog_rcv+0x13b/0x420 include/net/sock.h:1122\n __release_sock+0x1da/0x330 net/core/sock.c:3106\n release_sock+0x6b/0x250 net/core/sock.c:3660\n sctp_wait_for_connect+0x487/0x820 net/sctp/socket.c:9360\n sctp_sendmsg_to_asoc+0x1ec1/0x1f00 net/sctp/socket.c:1885\n sctp_sendmsg+0x32b9/0x4a80 net/sctp/socket.c:2031\n inet_sendmsg+0x25a/0x280 net/ipv4/af_inet.c:851\n sock_sendmsg_nosec net/socket.c:718 [inline]\n\nand\n\n BUG: KMSAN: uninit-value in sctp_assoc_bh_rcv+0x34e/0xbc0 net/sctp/associola.c:987\n sctp_assoc_bh_rcv+0x34e/0xbc0 net/sctp/associola.c:987\n sctp_inq_push+0x2a3/0x350 net/sctp/inqueue.c:88\n sctp_backlog_rcv+0x3c7/0xda0 net/sctp/input.c:331\n sk_backlog_rcv+0x142/0x420 include/net/sock.h:1148\n __release_sock+0x1d3/0x330 net/core/sock.c:3213\n release_sock+0x6b/0x270 net/core/sock.c:3767\n sctp_wait_for_connect+0x458/0x820 net/sctp/socket.c:9367\n sctp_sendmsg_to_asoc+0x223a/0x2260 net/sctp/socket.c:1886\n sctp_sendmsg+0x3910/0x49f0 net/sctp/socket.c:2032\n inet_sendmsg+0x269/0x2a0 net/ipv4/af_inet.c:851\n sock_sendmsg_nosec net/socket.c:712 [inline]\n\nThis patch fixes it by linearizing cloned gso packets in sctp_rcv().",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: sctp: linearize cloned gso packets in sctp_rcv",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "A flaw in the SCTP receive path failed to linearize cloned GSO sk_buffs before accessing fraglists, leading to reads of uninitialized memory as reported by KMSAN. An attacker sending SCTP traffic can trigger incorrect processing and potentially cause a kernel denial of service on the target under specific RX conditions.\nStream Control Transmission Protocol (SCTP) is a transport-layer protocol (like TCP or UDP) primarily used in telecom signaling and some specialized applications. On most Linux systems it is disabled by default, and remote connectivity is only possible if SCTP support is enabled and listening services are configured (commonly using the IANA-assigned port 2905/tcp for M3UA or other protocol-specific ports). Therefore, the vulnerability is only exploitable when SCTP is enabled and reachable on the target system.\nAlthough KMSAN reports this issue as use of uninitialized memory (which deterministically crashes with KMSAN enabled), on production kernels the impact is still availability-related.",
"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-2025-38718"
},
{
"category": "external",
"summary": "RHBZ#2393166",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2393166"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-38718",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38718"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-38718",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38718"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025090459-CVE-2025-38718-5bb6@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025090459-CVE-2025-38718-5bb6@gregkh/T"
}
],
"release_date": "2025-09-04T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-17T15:04:13+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-2025:23463"
},
{
"category": "workaround",
"details": "To mitigate this issue, prevent module sctp 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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"baseScore": 7.5,
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"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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{
"category": "impact",
"details": "Moderate"
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],
"title": "kernel: sctp: linearize cloned gso packets in sctp_rcv"
},
{
"cve": "CVE-2025-38724",
"cwe": {
"id": "CWE-367",
"name": "Time-of-check Time-of-use (TOCTOU) Race Condition"
},
"discovery_date": "2025-09-04T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2393172"
}
],
"notes": [
{
"category": "description",
"text": "A vulnerability has been identified in the Linux kernel\u0027s Network File System (NFS) daemon that could allow for a Denial of Service and in worst case scenario Arbitrary Code Execution. This Use-After-Free flaw arises from a race condition when the kernel handles the confirmation of an NFS client identifier. If an NFS client is expiring while this confirmation is in progress, the system can attempt to use memory that is no longer allocated.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm()",
"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-2025-38724"
},
{
"category": "external",
"summary": "RHBZ#2393172",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2393172"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-38724",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38724"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-38724",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38724"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025090401-CVE-2025-38724-5309@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025090401-CVE-2025-38724-5309@gregkh/T"
}
],
"release_date": "2025-09-04T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-17T15:04:13+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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"title": "kernel: nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm()"
},
{
"cve": "CVE-2025-38729",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"discovery_date": "2025-09-04T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2393164"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Validate UAC3 power domain descriptors, too\n\nUAC3 power domain descriptors need to be verified with its variable\nbLength for avoiding the unexpected OOB accesses by malicious\nfirmware, too.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: ALSA: usb-audio: Validate UAC3 power domain descriptors, too",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "A malicious or malformed USB Audio Class 3.0 device could provide a power-domain descriptor with an invalid bLength, leading the usb-audio parser to read past the end of the buffer. The fix adds explicit length checks for UAC3 power domain descriptors to prevent OOB access.",
"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-2025-38729"
},
{
"category": "external",
"summary": "RHBZ#2393164",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2393164"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-38729",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38729"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-38729",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38729"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025090403-CVE-2025-38729-ca88@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025090403-CVE-2025-38729-ca88@gregkh/T"
}
],
"release_date": "2025-09-04T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-17T15:04:13+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": 7.1,
"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: ALSA: usb-audio: Validate UAC3 power domain descriptors, too"
},
{
"cve": "CVE-2025-39757",
"cwe": {
"id": "CWE-20",
"name": "Improper Input Validation"
},
"discovery_date": "2025-09-11T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2394615"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Validate UAC3 cluster segment descriptors\n\nUAC3 class segment descriptors need to be verified whether their sizes\nmatch with the declared lengths and whether they fit with the\nallocated buffer sizes, too. Otherwise malicious firmware may lead to\nthe unexpected OOB accesses.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: ALSA: usb-audio: Validate UAC3 cluster segment 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"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-39757"
},
{
"category": "external",
"summary": "RHBZ#2394615",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2394615"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-39757",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39757"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-39757",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39757"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091144-CVE-2025-39757-e212@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091144-CVE-2025-39757-e212@gregkh/T"
}
],
"release_date": "2025-09-11T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-17T15:04:13+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": 7.1,
"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: ALSA: usb-audio: Validate UAC3 cluster segment descriptors"
},
{
"cve": "CVE-2025-39841",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2025-09-19T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2396944"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: lpfc: Fix buffer free/clear order in deferred receive path\n\nFix a use-after-free window by correcting the buffer release sequence in\nthe deferred receive path. The code freed the RQ buffer first and only\nthen cleared the context pointer under the lock. Concurrent paths (e.g.,\nABTS and the repost path) also inspect and release the same pointer under\nthe lock, so the old order could lead to double-free/UAF.\n\nNote that the repost path already uses the correct pattern: detach the\npointer under the lock, then free it after dropping the lock. The\ndeferred path should do the same.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: scsi: lpfc: Fix buffer free/clear order in deferred receive path",
"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-2025-39841"
},
{
"category": "external",
"summary": "RHBZ#2396944",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2396944"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-39841",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39841"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-39841",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39841"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091902-CVE-2025-39841-2c0f@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091902-CVE-2025-39841-2c0f@gregkh/T"
}
],
"release_date": "2025-09-19T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-17T15:04:13+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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"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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"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: scsi: lpfc: Fix buffer free/clear order in deferred receive path"
},
{
"cve": "CVE-2025-39955",
"cwe": {
"id": "CWE-213",
"name": "Exposure of Sensitive Information Due to Incompatible Policies"
},
"discovery_date": "2025-10-09T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2402699"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\ntcp: Clear tcp_sk(sk)-\u003efastopen_rsk in tcp_disconnect().\n\nsyzbot reported the splat below where a socket had tcp_sk(sk)-\u003efastopen_rsk\nin the TCP_ESTABLISHED state. [0]\n\nsyzbot reused the server-side TCP Fast Open socket as a new client before\nthe TFO socket completes 3WHS:\n\n 1. accept()\n 2. connect(AF_UNSPEC)\n 3. connect() to another destination\n\nAs of accept(), sk-\u003esk_state is TCP_SYN_RECV, and tcp_disconnect() changes\nit to TCP_CLOSE and makes connect() possible, which restarts timers.\n\nSince tcp_disconnect() forgot to clear tcp_sk(sk)-\u003efastopen_rsk, the\nretransmit timer triggered the warning and the intended packet was not\nretransmitted.\n\nLet\u0027s call reqsk_fastopen_remove() in tcp_disconnect().\n\n[0]:\nWARNING: CPU: 2 PID: 0 at net/ipv4/tcp_timer.c:542 tcp_retransmit_timer (net/ipv4/tcp_timer.c:542 (discriminator 7))\nModules linked in:\nCPU: 2 UID: 0 PID: 0 Comm: swapper/2 Not tainted 6.17.0-rc5-g201825fb4278 #62 PREEMPT(voluntary)\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\nRIP: 0010:tcp_retransmit_timer (net/ipv4/tcp_timer.c:542 (discriminator 7))\nCode: 41 55 41 54 55 53 48 8b af b8 08 00 00 48 89 fb 48 85 ed 0f 84 55 01 00 00 0f b6 47 12 3c 03 74 0c 0f b6 47 12 3c 04 74 04 90 \u003c0f\u003e 0b 90 48 8b 85 c0 00 00 00 48 89 ef 48 8b 40 30 e8 6a 4f 06 3e\nRSP: 0018:ffffc900002f8d40 EFLAGS: 00010293\nRAX: 0000000000000002 RBX: ffff888106911400 RCX: 0000000000000017\nRDX: 0000000002517619 RSI: ffffffff83764080 RDI: ffff888106911400\nRBP: ffff888106d5c000 R08: 0000000000000001 R09: ffffc900002f8de8\nR10: 00000000000000c2 R11: ffffc900002f8ff8 R12: ffff888106911540\nR13: ffff888106911480 R14: ffff888106911840 R15: ffffc900002f8de0\nFS: 0000000000000000(0000) GS:ffff88907b768000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f8044d69d90 CR3: 0000000002c30003 CR4: 0000000000370ef0\nCall Trace:\n \u003cIRQ\u003e\n tcp_write_timer (net/ipv4/tcp_timer.c:738)\n call_timer_fn (kernel/time/timer.c:1747)\n __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2372)\n timer_expire_remote (kernel/time/timer.c:2385 kernel/time/timer.c:2376 kernel/time/timer.c:2135)\n tmigr_handle_remote_up (kernel/time/timer_migration.c:944 kernel/time/timer_migration.c:1035)\n __walk_groups.isra.0 (kernel/time/timer_migration.c:533 (discriminator 1))\n tmigr_handle_remote (kernel/time/timer_migration.c:1096)\n handle_softirqs (./arch/x86/include/asm/jump_label.h:36 ./include/trace/events/irq.h:142 kernel/softirq.c:580)\n irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680 kernel/softirq.c:696)\n sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 (discriminator 35) arch/x86/kernel/apic/apic.c:1050 (discriminator 35))\n \u003c/IRQ\u003e",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: tcp: Clear tcp_sk(sk)-\u003efastopen_rsk in tcp_disconnect()",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "tcp_disconnect() failed to clear tcp_sk(sk)-\u003efastopen_rsk when reusing a TFO socket (e.g., after accept() \u2192 connect(AF_UNSPEC) \u2192 connect() sequence).\nThis left a stale reference, allowing the retransmit timer to access a freed request_sock, triggering a kernel warning or potential UAF.\nTriggering requires local access and the ability to create and manipulate TCP Fast Open sockets (often through privileged or test contexts).",
"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-2025-39955"
},
{
"category": "external",
"summary": "RHBZ#2402699",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2402699"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-39955",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39955"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-39955",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39955"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025100942-CVE-2025-39955-f36b@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025100942-CVE-2025-39955-f36b@gregkh/T"
}
],
"release_date": "2025-10-09T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-17T15:04:13+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-2025:23463"
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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: tcp: Clear tcp_sk(sk)-\u003efastopen_rsk in tcp_disconnect()"
},
{
"cve": "CVE-2025-40186",
"cwe": {
"id": "CWE-826",
"name": "Premature Release of Resource During Expected Lifetime"
},
"discovery_date": "2025-11-12T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2414724"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\ntcp: Don\u0027t call reqsk_fastopen_remove() in tcp_conn_request().\n\nsyzbot reported the splat below in tcp_conn_request(). [0]\n\nIf a listener is close()d while a TFO socket is being processed in\ntcp_conn_request(), inet_csk_reqsk_queue_add() does not set reqsk-\u003esk\nand calls inet_child_forget(), which calls tcp_disconnect() for the\nTFO socket.\n\nAfter the cited commit, tcp_disconnect() calls reqsk_fastopen_remove(),\nwhere reqsk_put() is called due to !reqsk-\u003esk.\n\nThen, reqsk_fastopen_remove() in tcp_conn_request() decrements the\nlast req-\u003ersk_refcnt and frees reqsk, and __reqsk_free() at the\ndrop_and_free label causes the refcount underflow for the listener\nand double-free of the reqsk.\n\nLet\u0027s remove reqsk_fastopen_remove() in tcp_conn_request().\n\nNote that other callers make sure tp-\u003efastopen_rsk is not NULL.\n\n[0]:\nrefcount_t: underflow; use-after-free.\nWARNING: CPU: 12 PID: 5563 at lib/refcount.c:28 refcount_warn_saturate (lib/refcount.c:28)\nModules linked in:\nCPU: 12 UID: 0 PID: 5563 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025\nRIP: 0010:refcount_warn_saturate (lib/refcount.c:28)\nCode: ab e8 8e b4 98 ff 0f 0b c3 cc cc cc cc cc 80 3d a4 e4 d6 01 00 75 9c c6 05 9b e4 d6 01 01 48 c7 c7 e8 df fb ab e8 6a b4 98 ff \u003c0f\u003e 0b e9 03 5b 76 00 cc 80 3d 7d e4 d6 01 00 0f 85 74 ff ff ff c6\nRSP: 0018:ffffa79fc0304a98 EFLAGS: 00010246\nRAX: d83af4db1c6b3900 RBX: ffff9f65c7a69020 RCX: d83af4db1c6b3900\nRDX: 0000000000000000 RSI: 00000000ffff7fff RDI: ffffffffac78a280\nRBP: 000000009d781b60 R08: 0000000000007fff R09: ffffffffac6ca280\nR10: 0000000000017ffd R11: 0000000000000004 R12: ffff9f65c7b4f100\nR13: ffff9f65c7d23c00 R14: ffff9f65c7d26000 R15: ffff9f65c7a64ef8\nFS: 00007f9f962176c0(0000) GS:ffff9f65fcf00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000200000000180 CR3: 000000000dbbe006 CR4: 0000000000372ef0\nCall Trace:\n \u003cIRQ\u003e\n tcp_conn_request (./include/linux/refcount.h:400 ./include/linux/refcount.h:432 ./include/linux/refcount.h:450 ./include/net/sock.h:1965 ./include/net/request_sock.h:131 net/ipv4/tcp_input.c:7301)\n tcp_rcv_state_process (net/ipv4/tcp_input.c:6708)\n tcp_v6_do_rcv (net/ipv6/tcp_ipv6.c:1670)\n tcp_v6_rcv (net/ipv6/tcp_ipv6.c:1906)\n ip6_protocol_deliver_rcu (net/ipv6/ip6_input.c:438)\n ip6_input (net/ipv6/ip6_input.c:500)\n ipv6_rcv (net/ipv6/ip6_input.c:311)\n __netif_receive_skb (net/core/dev.c:6104)\n process_backlog (net/core/dev.c:6456)\n __napi_poll (net/core/dev.c:7506)\n net_rx_action (net/core/dev.c:7569 net/core/dev.c:7696)\n handle_softirqs (kernel/softirq.c:579)\n do_softirq (kernel/softirq.c:480)\n \u003c/IRQ\u003e",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Linux kernel: Privilege escalation or Denial of Service via TCP Fast Open vulnerability",
"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-2025-40186"
},
{
"category": "external",
"summary": "RHBZ#2414724",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2414724"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-40186",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40186"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-40186",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40186"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025111244-CVE-2025-40186-b204@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025111244-CVE-2025-40186-b204@gregkh/T"
}
],
"release_date": "2025-11-12T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-12-17T15:04:13+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,
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"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": "Important"
}
],
"title": "kernel: Linux kernel: Privilege escalation or Denial of Service via TCP Fast Open vulnerability"
}
]
}
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Sightings
| Author | Source | Type | Date |
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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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