CVE-2025-40047 The advisory has been revoked - it doesn't affect any version of package libperf (opens in a new tab)
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-ALMALINUX10-LIBPERF-14375373
- published11 Dec 2025
- disclosed8 Dec 2025
Introduced: 8 Dec 2025
CVE-2025-40047 (opens in a new tab)Amendment
The AlmaLinux security team deemed this advisory irrelevant for AlmaLinux:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libperf package and not the libperf package as distributed by AlmaLinux.
In the Linux kernel, the following vulnerability has been resolved:
io_uring/waitid: always prune wait queue entry in io_waitid_wait()
For a successful return, always remove our entry from the wait queue entry list. Previously this was skipped if a cancelation was in progress, but this can race with another invocation of the wait queue entry callback.
References
- https://errata.almalinux.org/10/ALSA-2025-22854.html
- https://access.redhat.com/security/cve/CVE-2025-40047
- https://access.redhat.com/errata/RHSA-2025:22854
- https://git.kernel.org/stable/c/2f8229d53d984c6a05b71ac9e9583d4354e3b91f
- https://git.kernel.org/stable/c/3e2205db2f0608898d535da1964e1b376aacfdaa
- https://git.kernel.org/stable/c/696ba6032081e617564a8113a001b8d7943cb928