rhsa-2024_6268
Vulnerability from csaf_redhat
Published
2024-09-04 00:15
Modified
2024-11-06 06:52
Summary
Red Hat Security Advisory: kernel-rt security update
Notes
Topic
An update for kernel-rt is now available for Red Hat Enterprise Linux 9.2 Extended Update Support.
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-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* kernel: kprobes/x86: Use copy_from_kernel_nofault() to read from unsafe address (CVE-2024-26946)
* kernel: netfilter: bridge: replace physindev with physinif in nf_bridge_info (CVE-2024-35839)
* kernel: bpf, sockmap: Prevent lock inversion deadlock in map delete elem (CVE-2024-35895)
* kernel: x86/coco: Require seeding RNG with RDRAND on CoCo systems (CVE-2024-35875)
* kernel: gfs2: Fix potential glock use-after-free on unmount (CVE-2024-38570)
* kernel: bnxt_re: avoid shift undefined behavior in bnxt_qplib_alloc_init_hwq (CVE-2024-38540)
* kernel: ionic: fix use after netif_napi_del() (CVE-2024-39502)
* kernel: mm/huge_memory: don't unpoison huge_zero_folio (CVE-2024-40914)
* kernel: dmaengine: idxd: Fix possible Use-After-Free in irq_process_work_list (CVE-2024-40956)
* kernel: scsi: qedi: Fix crash while reading debugfs attribute (CVE-2024-40978)
* kernel: tipc: force a dst refcount before doing decryption (CVE-2024-40983)
* kernel: ppp: reject claimed-as-LCP but actually malformed packets (CVE-2024-41044)
* kernel: Revert "mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again" (CVE-2024-42102)
* kernel: mm: avoid overflows in dirty throttling logic (CVE-2024-42131)
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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{
"category": "description",
"text": "An unsafe read function was found in arch/x86/kernel/kprobes/core.c in the Linux kernel .",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: kprobes/x86: Use copy_from_kernel_nofault() to read from unsafe address",
"title": "Vulnerability summary"
},
{
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"text": "Red Hat Enterprise Linux 8 is not affected by this vulnerability.",
"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-2024-26946"
},
{
"category": "external",
"summary": "RHBZ#2278206",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2278206"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2024-26946",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-26946"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2024-26946",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26946"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2024050126-CVE-2024-26946-ad5d@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2024050126-CVE-2024-26946-ad5d@gregkh/T"
}
],
"release_date": "2024-05-01T00:00:00+00:00",
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{
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"date": "2024-09-04T00:15:00+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: kprobes/x86: Use copy_from_kernel_nofault() to read from unsafe address"
},
{
"cve": "CVE-2024-35839",
"discovery_date": "2024-05-17T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2281284"
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],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: bridge: replace physindev with physinif in nf_bridge_info\n\nAn skb can be added to a neigh-\u003earp_queue while waiting for an arp\nreply. Where original skb\u0027s skb-\u003edev can be different to neigh\u0027s\nneigh-\u003edev. For instance in case of bridging dnated skb from one veth to\nanother, the skb would be added to a neigh-\u003earp_queue of the bridge.\n\nAs skb-\u003edev can be reset back to nf_bridge-\u003ephysindev and used, and as\nthere is no explicit mechanism that prevents this physindev from been\nfreed under us (for instance neigh_flush_dev doesn\u0027t cleanup skbs from\ndifferent device\u0027s neigh queue) we can crash on e.g. this stack:\n\narp_process\n neigh_update\n skb = __skb_dequeue(\u0026neigh-\u003earp_queue)\n neigh_resolve_output(..., skb)\n ...\n br_nf_dev_xmit\n br_nf_pre_routing_finish_bridge_slow\n skb-\u003edev = nf_bridge-\u003ephysindev\n br_handle_frame_finish\n\nLet\u0027s use plain ifindex instead of net_device link. To peek into the\noriginal net_device we will use dev_get_by_index_rcu(). Thus either we\nget device and are safe to use it or we don\u0027t get it and drop skb.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: netfilter: bridge: replace physindev with physinif in nf_bridge_info",
"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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"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/coco: Require seeding RNG with RDRAND on CoCo systems\n\nThere are few uses of CoCo that don\u0027t rely on working cryptography and\nhence a working RNG. Unfortunately, the CoCo threat model means that the\nVM host cannot be trusted and may actively work against guests to\nextract secrets or manipulate computation. Since a malicious host can\nmodify or observe nearly all inputs to guests, the only remaining source\nof entropy for CoCo guests is RDRAND.\n\nIf RDRAND is broken -- due to CPU hardware fault -- the RNG as a whole\nis meant to gracefully continue on gathering entropy from other sources,\nbut since there aren\u0027t other sources on CoCo, this is catastrophic.\nThis is mostly a concern at boot time when initially seeding the RNG, as\nafter that the consequences of a broken RDRAND are much more\ntheoretical.\n\nSo, try at boot to seed the RNG using 256 bits of RDRAND output. If this\nfails, panic(). This will also trigger if the system is booted without\nRDRAND, as RDRAND is essential for a safe CoCo boot.\n\nAdd this deliberately to be \"just a CoCo x86 driver feature\" and not\npart of the RNG itself. Many device drivers and platforms have some\ndesire to contribute something to the RNG, and add_device_randomness()\nis specifically meant for this purpose.\n\nAny driver can call it with seed data of any quality, or even garbage\nquality, and it can only possibly make the quality of the RNG better or\nhave no effect, but can never make it worse.\n\nRather than trying to build something into the core of the RNG, consider\nthe particular CoCo issue just a CoCo issue, and therefore separate it\nall out into driver (well, arch/platform) code.\n\n [ bp: Massage commit message. ]",
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"title": "Vulnerability summary"
},
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"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.",
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},
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{
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{
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"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf, sockmap: Prevent lock inversion deadlock in map delete elem\n\nsyzkaller started using corpuses where a BPF tracing program deletes\nelements from a sockmap/sockhash map. Because BPF tracing programs can be\ninvoked from any interrupt context, locks taken during a map_delete_elem\noperation must be hardirq-safe. Otherwise a deadlock due to lock inversion\nis possible, as reported by lockdep:\n\n CPU0 CPU1\n ---- ----\n lock(\u0026htab-\u003ebuckets[i].lock);\n local_irq_disable();\n lock(\u0026host-\u003elock);\n lock(\u0026htab-\u003ebuckets[i].lock);\n \u003cInterrupt\u003e\n lock(\u0026host-\u003elock);\n\nLocks in sockmap are hardirq-unsafe by design. We expects elements to be\ndeleted from sockmap/sockhash only in task (normal) context with interrupts\nenabled, or in softirq context.\n\nDetect when map_delete_elem operation is invoked from a context which is\n_not_ hardirq-unsafe, that is interrupts are disabled, and bail out with an\nerror.\n\nNote that map updates are not affected by this issue. BPF verifier does not\nallow updating sockmap/sockhash from a BPF tracing program today.",
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"text": "kernel: bpf, sockmap: Prevent lock inversion deadlock in map delete elem",
"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.",
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},
{
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"url": "https://www.cve.org/CVERecord?id=CVE-2024-35895"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2024-35895",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35895"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2024051950-CVE-2024-35895-cb33@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2024051950-CVE-2024-35895-cb33@gregkh/T"
}
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"url": "https://access.redhat.com/errata/RHSA-2024:6268"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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"title": "kernel: bpf, sockmap: Prevent lock inversion deadlock in map delete elem"
},
{
"cve": "CVE-2024-38540",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"discovery_date": "2024-06-19T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2293459"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_re: avoid shift undefined behavior in bnxt_qplib_alloc_init_hwq\n\nUndefined behavior is triggered when bnxt_qplib_alloc_init_hwq is called\nwith hwq_attr-\u003eaux_depth != 0 and hwq_attr-\u003eaux_stride == 0.\nIn that case, \"roundup_pow_of_two(hwq_attr-\u003eaux_stride)\" gets called.\nroundup_pow_of_two is documented as undefined for 0.\n\nFix it in the one caller that had this combination.\n\nThe undefined behavior was detected by UBSAN:\n UBSAN: shift-out-of-bounds in ./include/linux/log2.h:57:13\n shift exponent 64 is too large for 64-bit type \u0027long unsigned int\u0027\n CPU: 24 PID: 1075 Comm: (udev-worker) Not tainted 6.9.0-rc6+ #4\n Hardware name: Abacus electric, s.r.o. - servis@abacus.cz Super Server/H12SSW-iN, BIOS 2.7 10/25/2023\n Call Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x5d/0x80\n ubsan_epilogue+0x5/0x30\n __ubsan_handle_shift_out_of_bounds.cold+0x61/0xec\n __roundup_pow_of_two+0x25/0x35 [bnxt_re]\n bnxt_qplib_alloc_init_hwq+0xa1/0x470 [bnxt_re]\n bnxt_qplib_create_qp+0x19e/0x840 [bnxt_re]\n bnxt_re_create_qp+0x9b1/0xcd0 [bnxt_re]\n ? srso_alias_return_thunk+0x5/0xfbef5\n ? srso_alias_return_thunk+0x5/0xfbef5\n ? __kmalloc+0x1b6/0x4f0\n ? create_qp.part.0+0x128/0x1c0 [ib_core]\n ? __pfx_bnxt_re_create_qp+0x10/0x10 [bnxt_re]\n create_qp.part.0+0x128/0x1c0 [ib_core]\n ib_create_qp_kernel+0x50/0xd0 [ib_core]\n create_mad_qp+0x8e/0xe0 [ib_core]\n ? __pfx_qp_event_handler+0x10/0x10 [ib_core]\n ib_mad_init_device+0x2be/0x680 [ib_core]\n add_client_context+0x10d/0x1a0 [ib_core]\n enable_device_and_get+0xe0/0x1d0 [ib_core]\n ib_register_device+0x53c/0x630 [ib_core]\n ? srso_alias_return_thunk+0x5/0xfbef5\n bnxt_re_probe+0xbd8/0xe50 [bnxt_re]\n ? __pfx_bnxt_re_probe+0x10/0x10 [bnxt_re]\n auxiliary_bus_probe+0x49/0x80\n ? driver_sysfs_add+0x57/0xc0\n really_probe+0xde/0x340\n ? pm_runtime_barrier+0x54/0x90\n ? __pfx___driver_attach+0x10/0x10\n __driver_probe_device+0x78/0x110\n driver_probe_device+0x1f/0xa0\n __driver_attach+0xba/0x1c0\n bus_for_each_dev+0x8f/0xe0\n bus_add_driver+0x146/0x220\n driver_register+0x72/0xd0\n __auxiliary_driver_register+0x6e/0xd0\n ? __pfx_bnxt_re_mod_init+0x10/0x10 [bnxt_re]\n bnxt_re_mod_init+0x3e/0xff0 [bnxt_re]\n ? __pfx_bnxt_re_mod_init+0x10/0x10 [bnxt_re]\n do_one_initcall+0x5b/0x310\n do_init_module+0x90/0x250\n init_module_from_file+0x86/0xc0\n idempotent_init_module+0x121/0x2b0\n __x64_sys_finit_module+0x5e/0xb0\n do_syscall_64+0x82/0x160\n ? srso_alias_return_thunk+0x5/0xfbef5\n ? syscall_exit_to_user_mode_prepare+0x149/0x170\n ? srso_alias_return_thunk+0x5/0xfbef5\n ? syscall_exit_to_user_mode+0x75/0x230\n ? srso_alias_return_thunk+0x5/0xfbef5\n ? do_syscall_64+0x8e/0x160\n ? srso_alias_return_thunk+0x5/0xfbef5\n ? __count_memcg_events+0x69/0x100\n ? srso_alias_return_thunk+0x5/0xfbef5\n ? count_memcg_events.constprop.0+0x1a/0x30\n ? srso_alias_return_thunk+0x5/0xfbef5\n ? handle_mm_fault+0x1f0/0x300\n ? srso_alias_return_thunk+0x5/0xfbef5\n ? do_user_addr_fault+0x34e/0x640\n ? srso_alias_return_thunk+0x5/0xfbef5\n ? srso_alias_return_thunk+0x5/0xfbef5\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n RIP: 0033:0x7f4e5132821d\n Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 8b 0d e3 db 0c 00 f7 d8 64 89 01 48\n RSP: 002b:00007ffca9c906a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139\n RAX: ffffffffffffffda RBX: 0000563ec8a8f130 RCX: 00007f4e5132821d\n RDX: 0000000000000000 RSI: 00007f4e518fa07d RDI: 000000000000003b\n RBP: 00007ffca9c90760 R08: 00007f4e513f6b20 R09: 00007ffca9c906f0\n R10: 0000563ec8a8faa0 R11: 0000000000000246 R12: 00007f4e518fa07d\n R13: 0000000000020000 R14: 0000563ec8409e90 R15: 0000563ec8a8fa60\n \u003c/TASK\u003e\n ---[ end trace ]---",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: bnxt_re: avoid shift undefined behavior in bnxt_qplib_alloc_init_hwq",
"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-2024-38540"
},
{
"category": "external",
"summary": "RHBZ#2293459",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2293459"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2024-38540",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-38540"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2024-38540",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38540"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2024061947-CVE-2024-38540-1d0a@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2024061947-CVE-2024-38540-1d0a@gregkh/T"
}
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"text": "In the Linux kernel, the following vulnerability has been resolved:\n\ngfs2: Fix potential glock use-after-free on unmount\n\nWhen a DLM lockspace is released and there ares still locks in that\nlockspace, DLM will unlock those locks automatically. Commit\nfb6791d100d1b started exploiting this behavior to speed up filesystem\nunmount: gfs2 would simply free glocks it didn\u0027t want to unlock and then\nrelease the lockspace. This didn\u0027t take the bast callbacks for\nasynchronous lock contention notifications into account, which remain\nactive until until a lock is unlocked or its lockspace is released.\n\nTo prevent those callbacks from accessing deallocated objects, put the\nglocks that should not be unlocked on the sd_dead_glocks list, release\nthe lockspace, and only then free those glocks.\n\nAs an additional measure, ignore unexpected ast and bast callbacks if\nthe receiving glock is dead.",
"title": "Vulnerability description"
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{
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"text": "kernel: gfs2: Fix potential glock use-after-free on unmount",
"title": "Vulnerability summary"
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"text": "This vulnerability is rated as a moderate severity due to its localized impact. Exploitation requires specific conditions during unmount, affecting stability without extensive security risks, as it impacts only the file system\u2019s lock management on unmount.",
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},
{
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"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.",
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},
{
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{
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"url": "https://www.cve.org/CVERecord?id=CVE-2024-38570"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2024-38570",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38570"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2024061956-CVE-2024-38570-a8ef@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2024061956-CVE-2024-38570-a8ef@gregkh/T"
}
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"title": "kernel: gfs2: Fix potential glock use-after-free on unmount"
},
{
"cve": "CVE-2024-39502",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2024-07-12T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2297474"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nionic: fix use after netif_napi_del()\n\nWhen queues are started, netif_napi_add() and napi_enable() are called.\nIf there are 4 queues and only 3 queues are used for the current\nconfiguration, only 3 queues\u0027 napi should be registered and enabled.\nThe ionic_qcq_enable() checks whether the .poll pointer is not NULL for\nenabling only the using queue\u0027 napi. Unused queues\u0027 napi will not be\nregistered by netif_napi_add(), so the .poll pointer indicates NULL.\nBut it couldn\u0027t distinguish whether the napi was unregistered or not\nbecause netif_napi_del() doesn\u0027t reset the .poll pointer to NULL.\nSo, ionic_qcq_enable() calls napi_enable() for the queue, which was\nunregistered by netif_napi_del().\n\nReproducer:\n ethtool -L \u003cinterface name\u003e rx 1 tx 1 combined 0\n ethtool -L \u003cinterface name\u003e rx 0 tx 0 combined 1\n ethtool -L \u003cinterface name\u003e rx 0 tx 0 combined 4\n\nSplat looks like:\nkernel BUG at net/core/dev.c:6666!\nOops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\nCPU: 3 PID: 1057 Comm: kworker/3:3 Not tainted 6.10.0-rc2+ #16\nWorkqueue: events ionic_lif_deferred_work [ionic]\nRIP: 0010:napi_enable+0x3b/0x40\nCode: 48 89 c2 48 83 e2 f6 80 b9 61 09 00 00 00 74 0d 48 83 bf 60 01 00 00 00 74 03 80 ce 01 f0 4f\nRSP: 0018:ffffb6ed83227d48 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: ffff97560cda0828 RCX: 0000000000000029\nRDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff97560cda0a28\nRBP: ffffb6ed83227d50 R08: 0000000000000400 R09: 0000000000000001\nR10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000\nR13: ffff97560ce3c1a0 R14: 0000000000000000 R15: ffff975613ba0a20\nFS: 0000000000000000(0000) GS:ffff975d5f780000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f8f734ee200 CR3: 0000000103e50000 CR4: 00000000007506f0\nPKRU: 55555554\nCall Trace:\n \u003cTASK\u003e\n ? die+0x33/0x90\n ? do_trap+0xd9/0x100\n ? napi_enable+0x3b/0x40\n ? do_error_trap+0x83/0xb0\n ? napi_enable+0x3b/0x40\n ? napi_enable+0x3b/0x40\n ? exc_invalid_op+0x4e/0x70\n ? napi_enable+0x3b/0x40\n ? asm_exc_invalid_op+0x16/0x20\n ? napi_enable+0x3b/0x40\n ionic_qcq_enable+0xb7/0x180 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8]\n ionic_start_queues+0xc4/0x290 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8]\n ionic_link_status_check+0x11c/0x170 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8]\n ionic_lif_deferred_work+0x129/0x280 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8]\n process_one_work+0x145/0x360\n worker_thread+0x2bb/0x3d0\n ? __pfx_worker_thread+0x10/0x10\n kthread+0xcc/0x100\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x2d/0x50\n ? __pfx_kthread+0x10/0x10\n ret_from_fork_asm+0x1a/0x30",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: ionic: fix use after netif_napi_del()",
"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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{
"category": "self",
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"url": "https://access.redhat.com/security/cve/CVE-2024-39502"
},
{
"category": "external",
"summary": "RHBZ#2297474",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2297474"
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{
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"summary": "https://www.cve.org/CVERecord?id=CVE-2024-39502",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-39502"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2024-39502",
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{
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"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: don\u0027t unpoison huge_zero_folio\n\nWhen I did memory failure tests recently, below panic occurs:\n\n kernel BUG at include/linux/mm.h:1135!\n invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 9 PID: 137 Comm: kswapd1 Not tainted 6.9.0-rc4-00491-gd5ce28f156fe-dirty #14\n RIP: 0010:shrink_huge_zero_page_scan+0x168/0x1a0\n RSP: 0018:ffff9933c6c57bd0 EFLAGS: 00000246\n RAX: 000000000000003e RBX: 0000000000000000 RCX: ffff88f61fc5c9c8\n RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffff88f61fc5c9c0\n RBP: ffffcd7c446b0000 R08: ffffffff9a9405f0 R09: 0000000000005492\n R10: 00000000000030ea R11: ffffffff9a9405f0 R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000000 R15: ffff88e703c4ac00\n FS: 0000000000000000(0000) GS:ffff88f61fc40000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000055f4da6e9878 CR3: 0000000c71048000 CR4: 00000000000006f0\n Call Trace:\n \u003cTASK\u003e\n do_shrink_slab+0x14f/0x6a0\n shrink_slab+0xca/0x8c0\n shrink_node+0x2d0/0x7d0\n balance_pgdat+0x33a/0x720\n kswapd+0x1f3/0x410\n kthread+0xd5/0x100\n ret_from_fork+0x2f/0x50\n ret_from_fork_asm+0x1a/0x30\n \u003c/TASK\u003e\n Modules linked in: mce_inject hwpoison_inject\n ---[ end trace 0000000000000000 ]---\n RIP: 0010:shrink_huge_zero_page_scan+0x168/0x1a0\n RSP: 0018:ffff9933c6c57bd0 EFLAGS: 00000246\n RAX: 000000000000003e RBX: 0000000000000000 RCX: ffff88f61fc5c9c8\n RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffff88f61fc5c9c0\n RBP: ffffcd7c446b0000 R08: ffffffff9a9405f0 R09: 0000000000005492\n R10: 00000000000030ea R11: ffffffff9a9405f0 R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000000 R15: ffff88e703c4ac00\n FS: 0000000000000000(0000) GS:ffff88f61fc40000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000055f4da6e9878 CR3: 0000000c71048000 CR4: 00000000000006f0\n\nThe root cause is that HWPoison flag will be set for huge_zero_folio\nwithout increasing the folio refcnt. But then unpoison_memory() will\ndecrease the folio refcnt unexpectedly as it appears like a successfully\nhwpoisoned folio leading to VM_BUG_ON_PAGE(page_ref_count(page) == 0) when\nreleasing huge_zero_folio.\n\nSkip unpoisoning huge_zero_folio in unpoison_memory() to fix this issue. \nWe\u0027re not prepared to unpoison huge_zero_folio yet.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: mm/huge_memory: don\u0026#39;t unpoison huge_zero_folio",
"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-2024-40914"
},
{
"category": "external",
"summary": "RHBZ#2297498",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2297498"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2024-40914",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-40914"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2024-40914",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-40914"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2024071210-CVE-2024-40914-0e04@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2024071210-CVE-2024-40914-0e04@gregkh/T"
}
],
"release_date": "2024-07-12T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2024-09-04T00:15:00+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": 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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{
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"notes": [
{
"category": "description",
"text": "A vulnerability was found in the Linux kernel\u0027s DMA engine component in the irq_process_work_list() function. A possible use-after-free condition can occur during list iteration, which is because a descriptor may be freed while another thread is reusing it, potentially leading to access to freed memory.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: dmaengine: idxd: Fix possible Use-After-Free in irq_process_work_list",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability is rated as a Moderate severity because, although it allows use-after-free during list processing with a low attack complexity and local access, exploitation remains limited to localized impact. The risk of descriptor reuse could affect stability but does not broadly compromise system security.",
"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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{
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{
"category": "external",
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{
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"attackVector": "LOCAL",
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"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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{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: dmaengine: idxd: Fix possible Use-After-Free in irq_process_work_list"
},
{
"cve": "CVE-2024-40978",
"cwe": {
"id": "CWE-822",
"name": "Untrusted Pointer Dereference"
},
"discovery_date": "2024-07-12T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2297562"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qedi: Fix crash while reading debugfs attribute\n\nThe qedi_dbg_do_not_recover_cmd_read() function invokes sprintf() directly\non a __user pointer, which results into the crash.\n\nTo fix this issue, use a small local stack buffer for sprintf() and then\ncall simple_read_from_buffer(), which in turns make the copy_to_user()\ncall.\n\nBUG: unable to handle page fault for address: 00007f4801111000\nPGD 8000000864df6067 P4D 8000000864df6067 PUD 864df7067 PMD 846028067 PTE 0\nOops: 0002 [#1] PREEMPT SMP PTI\nHardware name: HPE ProLiant DL380 Gen10/ProLiant DL380 Gen10, BIOS U30 06/15/2023\nRIP: 0010:memcpy_orig+0xcd/0x130\nRSP: 0018:ffffb7a18c3ffc40 EFLAGS: 00010202\nRAX: 00007f4801111000 RBX: 00007f4801111000 RCX: 000000000000000f\nRDX: 000000000000000f RSI: ffffffffc0bfd7a0 RDI: 00007f4801111000\nRBP: ffffffffc0bfd7a0 R08: 725f746f6e5f6f64 R09: 3d7265766f636572\nR10: ffffb7a18c3ffd08 R11: 0000000000000000 R12: 00007f4881110fff\nR13: 000000007fffffff R14: ffffb7a18c3ffca0 R15: ffffffffc0bfd7af\nFS: 00007f480118a740(0000) GS:ffff98e38af00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f4801111000 CR3: 0000000864b8e001 CR4: 00000000007706e0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nPKRU: 55555554\nCall Trace:\n \u003cTASK\u003e\n ? __die_body+0x1a/0x60\n ? page_fault_oops+0x183/0x510\n ? exc_page_fault+0x69/0x150\n ? asm_exc_page_fault+0x22/0x30\n ? memcpy_orig+0xcd/0x130\n vsnprintf+0x102/0x4c0\n sprintf+0x51/0x80\n qedi_dbg_do_not_recover_cmd_read+0x2f/0x50 [qedi 6bcfdeeecdea037da47069eca2ba717c84a77324]\n full_proxy_read+0x50/0x80\n vfs_read+0xa5/0x2e0\n ? folio_add_new_anon_rmap+0x44/0xa0\n ? set_pte_at+0x15/0x30\n ? do_pte_missing+0x426/0x7f0\n ksys_read+0xa5/0xe0\n do_syscall_64+0x58/0x80\n ? __count_memcg_events+0x46/0x90\n ? count_memcg_event_mm+0x3d/0x60\n ? handle_mm_fault+0x196/0x2f0\n ? do_user_addr_fault+0x267/0x890\n ? exc_page_fault+0x69/0x150\n entry_SYSCALL_64_after_hwframe+0x72/0xdc\nRIP: 0033:0x7f4800f20b4d",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: scsi: qedi: Fix crash while reading debugfs attribute",
"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-2024-40978"
},
{
"category": "external",
"summary": "RHBZ#2297562",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2297562"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2024-40978",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-40978"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2024-40978",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-40978"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2024071231-CVE-2024-40978-d135@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2024071231-CVE-2024-40978-d135@gregkh/T"
}
],
"release_date": "2024-07-12T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2024-09-04T00:15:00+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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{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: force a dst refcount before doing decryption\n\nAs it says in commit 3bc07321ccc2 (\"xfrm: Force a dst refcount before\nentering the xfrm type handlers\"):\n\n\"Crypto requests might return asynchronous. In this case we leave the\n rcu protected region, so force a refcount on the skb\u0027s destination\n entry before we enter the xfrm type input/output handlers.\"\n\nOn TIPC decryption path it has the same problem, and skb_dst_force()\nshould be called before doing decryption to avoid a possible crash.\n\nShuang reported this issue when this warning is triggered:\n\n [] WARNING: include/net/dst.h:337 tipc_sk_rcv+0x1055/0x1ea0 [tipc]\n [] Kdump: loaded Tainted: G W --------- - - 4.18.0-496.el8.x86_64+debug\n [] Workqueue: crypto cryptd_queue_worker\n [] RIP: 0010:tipc_sk_rcv+0x1055/0x1ea0 [tipc]\n [] Call Trace:\n [] tipc_sk_mcast_rcv+0x548/0xea0 [tipc]\n [] tipc_rcv+0xcf5/0x1060 [tipc]\n [] tipc_aead_decrypt_done+0x215/0x2e0 [tipc]\n [] cryptd_aead_crypt+0xdb/0x190\n [] cryptd_queue_worker+0xed/0x190\n [] process_one_work+0x93d/0x17e0",
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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.",
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{
"category": "external",
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},
{
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"summary": "https://lore.kernel.org/linux-cve-announce/2024071201-CVE-2024-40983-e1b1@gregkh/T",
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"date": "2024-09-04T00:15:00+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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"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nppp: reject claimed-as-LCP but actually malformed packets\n\nSince \u0027ppp_async_encode()\u0027 assumes valid LCP packets (with code\nfrom 1 to 7 inclusive), add \u0027ppp_check_packet()\u0027 to ensure that\nLCP packet has an actual body beyond PPP_LCP header bytes, and\nreject claimed-as-LCP but actually malformed data otherwise.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: ppp: reject claimed-as-LCP but actually malformed packets",
"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-2024-41044",
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{
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{
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"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.",
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
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"scope": "UNCHANGED",
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}
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.