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Huawei EulerOS: CVE-2024-44958: kernel security update

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Huawei EulerOS: CVE-2024-44958: kernel security update

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
09/04/2024
Created
01/15/2025
Added
01/14/2025
Modified
01/28/2025

Description

In the Linux kernel, the following vulnerability has been resolved: sched/smt: Fix unbalance sched_smt_present dec/inc I got the following warn report while doing stress test: jump label: negative count! WARNING: CPU: 3 PID: 38 at kernel/jump_label.c:263 static_key_slow_try_dec+0x9d/0xb0 Call Trace: <TASK> __static_key_slow_dec_cpuslocked+0x16/0x70 sched_cpu_deactivate+0x26e/0x2a0 cpuhp_invoke_callback+0x3ad/0x10d0 cpuhp_thread_fun+0x3f5/0x680 smpboot_thread_fn+0x56d/0x8d0 kthread+0x309/0x400 ret_from_fork+0x41/0x70 ret_from_fork_asm+0x1b/0x30 </TASK> Because when cpuset_cpu_inactive() fails in sched_cpu_deactivate(), the cpu offline failed, but sched_smt_present is decremented before calling sched_cpu_deactivate(), it leads to unbalanced dec/inc, so fix it by incrementing sched_smt_present in the error path.

Solution(s)

  • huawei-euleros-2_0_sp10-upgrade-kernel
  • huawei-euleros-2_0_sp10-upgrade-kernel-abi-stablelists
  • huawei-euleros-2_0_sp10-upgrade-kernel-tools
  • huawei-euleros-2_0_sp10-upgrade-kernel-tools-libs
  • huawei-euleros-2_0_sp10-upgrade-python3-perf

References

  • https://attackerkb.com/topics/cve-2024-44958
  • CVE - 2024-44958
  • EulerOS-SA-2025-1024
  • 查看数 698
  • 已创建
  • 最后回复

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