Time-of-check Time-of-use (TOCTOU) The advisory has been revoked - it doesn't affect any version of package perf (opens in a new tab)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-RHEL9-PERF-15850151
- published30 Mar 2026
- disclosed24 Dec 2025
Introduced: 24 Dec 2025
CVE-2023-53867 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:9.
NVD Description
Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by RHEL.
In the Linux kernel, the following vulnerability has been resolved:
ceph: fix potential use-after-free bug when trimming caps
When trimming the caps and just after the 'session->s_cap_lock' is released in ceph_iterate_session_caps() the cap maybe removed by another thread, and when using the stale cap memory in the callbacks it will trigger use-after-free crash.
We need to check the existence of the cap just after the 'ci->i_ceph_lock' being acquired. And do nothing if it's already removed.
References
- https://access.redhat.com/security/cve/CVE-2023-53867
- https://git.kernel.org/stable/c/2b2515b8095cf2149bef44383a99d5b5677f1831
- https://git.kernel.org/stable/c/448875a73e16ba7d81dec9274ce9d33a12d092fb
- https://git.kernel.org/stable/c/aaf67de78807c59c35bafb5003d4fb457c764800
- https://git.kernel.org/stable/c/ae6e935618d99cdba11eab4714092e7e5f13cf7e