Out-of-bounds Write The advisory has been revoked - it doesn't affect any version of package libperf (opens in a new tab)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-21319616
- published21 Oct 2026
- disclosed17 Sept 2026
Introduced: 17 Sep 2026
CVE-2026-93148 (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:
bpf: Reject MEM_ALLOC BTF accesses past object bounds
BTF struct walks relax the struct-size check for accesses through a trailing flexible array. That is valid for ordinary BTF type walking, but PTR_TO_BTF_ID | MEM_ALLOC values point to objects allocated with the static BTF type size.
When walking a MEM_ALLOC object, reject the access before applying the flexible-array relaxation if the access range extends past the struct size. Apply the same policy to struct ID matching so kfunc and kptr type checks do not walk past the allocated object bounds either.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2536778
- https://access.redhat.com/security/cve/CVE-2026-93148
- https://git.kernel.org/stable/c/9c9ee0324c774490ae953162aaaf4561d222bd93
- https://git.kernel.org/stable/c/e626a50d07d43421cbf7bfb5a084b33a5e276b6e
- https://git.kernel.org/stable/c/cf08ff2255de98cfcbc8bf7236fbeb38f0d5b4f1
- https://git.kernel.org/stable/c/90d36e825da4fadeede64784ceda975ab7b31dab
- https://git.kernel.org/stable/c/94033c193bc38794511b2ebfa3dc0287d3b2bf60