CVE-2024-26707 Affecting kernel-64k-modules-extra package, versions <0:5.14.0-503.11.1.el9_5
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL9-KERNEL64KMODULESEXTRA-6532658
- published4 Apr 2024
- disclosed3 Apr 2024
Introduced: 3 Apr 2024
CVE-2024-26707 (opens in a new tab)How to fix?
Upgrade RHEL:9 kernel-64k-modules-extra to version 0:5.14.0-503.11.1.el9_5 or higher.
This issue was patched in RHSA-2024:9315.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-64k-modules-extra package and not the kernel-64k-modules-extra package as distributed by RHEL.
See How to fix? for RHEL:9 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
net: hsr: remove WARN_ONCE() in send_hsr_supervision_frame()
Syzkaller reported [1] hitting a warning after failing to allocate resources for skb in hsr_init_skb(). Since a WARN_ONCE() call will not help much in this case, it might be prudent to switch to netdev_warn_once(). At the very least it will suppress syzkaller reports such as [1].
Just in case, use netdev_warn_once() in send_prp_supervision_frame() for similar reasons.
[1] HSR: Could not send supervision frame WARNING: CPU: 1 PID: 85 at net/hsr/hsr_device.c:294 send_hsr_supervision_frame+0x60a/0x810 net/hsr/hsr_device.c:294 RIP: 0010:send_hsr_supervision_frame+0x60a/0x810 net/hsr/hsr_device.c:294 ... Call Trace: <IRQ> hsr_announce+0x114/0x370 net/hsr/hsr_device.c:382 call_timer_fn+0x193/0x590 kernel/time/timer.c:1700 expire_timers kernel/time/timer.c:1751 [inline] __run_timers+0x764/0xb20 kernel/time/timer.c:2022 run_timer_softirq+0x58/0xd0 kernel/time/timer.c:2035 __do_softirq+0x21a/0x8de kernel/softirq.c:553 invoke_softirq kernel/softirq.c:427 [inline] __irq_exit_rcu kernel/softirq.c:632 [inline] irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644 sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1076 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649 ...
This issue is also found in older kernels (at least up to 5.10).
References
- https://access.redhat.com/security/cve/CVE-2024-26707
- https://git.kernel.org/stable/c/0d8011a878fdf96123bc0d6a12e2fe7ced5fddfb
- https://git.kernel.org/stable/c/37e8c97e539015637cb920d3e6f1e404f707a06e
- https://git.kernel.org/stable/c/547545e50c913861219947ce490c68a1776b9b51
- https://git.kernel.org/stable/c/56440799fc4621c279df16176f83a995d056023a
- https://git.kernel.org/stable/c/923dea2a7ea9e1ef5ac4031fba461c1cc92e32b8
- https://git.kernel.org/stable/c/de769423b2f053182a41317c4db5a927e90622a0
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html