Improper Input Validation The advisory has been revoked - it doesn't affect any version of package libperf (opens in a new tab)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-21686828
- published24 Oct 2026
- disclosed16 Sept 2026
Introduced: 16 Sep 2026
CVE-2026-89911 (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:
KVM: arm64: Correctly cap TLBI Range to the architural limit
TLB Invalidation by Range has a fairly powerful way of encoding pretty large ranges in a small number of bits. This range can be based on an arbitrary VA, which means it is pretty easy for a guest to generate an overflow should the hypervisor be naive enough to add the range to the base...
Make sure the range is capped to the limit dictated by the address bit that determines the VA range. For an IPA invalidation, this is further corrected down the line to ignore the upper range.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2535233
- https://access.redhat.com/security/cve/CVE-2026-89911
- https://git.kernel.org/stable/c/2de38f0448b45d27eba984fc0d9edb7a138972c2
- https://git.kernel.org/stable/c/566b1f08d983615f731cc693f2ad59db302c6b57
- https://git.kernel.org/stable/c/69a598288195947a1662b53de702eb6976af96b7