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PUBLISHED

CVE-2024-26707

net: hsr: remove WARN_ONCE() in send_hsr_supervision_frame()

Reserved:2024-02-19
Published:2024-04-03
Updated:2024-04-03

Description

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).

Product status

Default status
unaffected

121c33b07b31 before 0d8011a878fd
affected

121c33b07b31 before de769423b2f0
affected

121c33b07b31 before 56440799fc46
affected

121c33b07b31 before 923dea2a7ea9
affected

121c33b07b31 before 547545e50c91
affected

121c33b07b31 before 37e8c97e5390
affected

Default status
affected

5.9
affected

Any version before 5.9
unaffected

5.10.210
unaffected

5.15.149
unaffected

6.1.79
unaffected

6.6.18
unaffected

6.7.6
unaffected

6.8
unaffected

References

https://git.kernel.org/stable/c/0d8011a878fdf96123bc0d6a12e2fe7ced5fddfb

https://git.kernel.org/stable/c/de769423b2f053182a41317c4db5a927e90622a0

https://git.kernel.org/stable/c/56440799fc4621c279df16176f83a995d056023a

https://git.kernel.org/stable/c/923dea2a7ea9e1ef5ac4031fba461c1cc92e32b8

https://git.kernel.org/stable/c/547545e50c913861219947ce490c68a1776b9b51

https://git.kernel.org/stable/c/37e8c97e539015637cb920d3e6f1e404f707a06e

cve.org CVE-2024-26707

nvd.nist.gov CVE-2024-26707

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