Expired Pointer Dereference The advisory has been revoked - it doesn't affect any version of package libperf (opens in a new tab)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-RHEL10-LIBPERF-14283840
- published10 Dec 2025
- disclosed9 Dec 2025
Introduced: 9 Dec 2025
CVE-2025-40328 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libperf package and not the libperf package as distributed by RHEL.
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix potential UAF in smb2_close_cached_fid()
find_or_create_cached_dir() could grab a new reference after kref_put() had seen the refcount drop to zero but before cfid_list_lock is acquired in smb2_close_cached_fid(), leading to use-after-free.
Switch to kref_put_lock() so cfid_release() is called with cfid_list_lock held, closing that gap.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2420415
- https://access.redhat.com/security/cve/CVE-2025-40328
- https://git.kernel.org/stable/c/065bd62412271a2d734810dd50336cae88c54427
- https://git.kernel.org/stable/c/734e99623c5b65bf2c03e35978a0b980ebc3c2f8
- https://git.kernel.org/stable/c/bdb596ceb4b7c3f28786a33840263728217fbcf5
- https://git.kernel.org/stable/c/cb52d9c86d70298de0ab7c7953653898cbc0efd6
- https://git.kernel.org/stable/c/bb3355ce9dcaba1b4a766f98b2ad373cab6cd626