CVE-2026-23259 The advisory has been revoked - it doesn't affect any version of package libperf (opens in a new tab)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-CENTOS10-LIBPERF-15706195
- published20 Mar 2026
- disclosed18 Mar 2026
Introduced: 18 Mar 2026
CVE-2026-23259 (opens in a new tab)Amendment
The Centos security team deemed this advisory irrelevant for Centos:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libperf package and not the libperf package as distributed by Centos.
In the Linux kernel, the following vulnerability has been resolved:
io_uring/rw: free potentially allocated iovec on cache put failure
If a read/write request goes through io_req_rw_cleanup() and has an allocated iovec attached and fails to put to the rw_cache, then it may end up with an unaccounted iovec pointer. Have io_rw_recycle() return whether it recycled the request or not, and use that to gauge whether to free a potential iovec or not.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2448689
- https://access.redhat.com/security/cve/CVE-2026-23259
- https://git.kernel.org/stable/c/1d5f2329ab4df65c2ee011b986d8a6e05ad0f67c
- https://git.kernel.org/stable/c/4b9748055457ac3a0710bf210c229d01ea1b01b9
- https://git.kernel.org/stable/c/41cda4c66846c3bfcdeaf28444ccabbb55e64cf1