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Improper Input Validation The advisory has been revoked - it doesn't affect any version of package kernel-uki-virt  (opens in a new tab)

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EPSS
0.16% (5th percentile)

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  • Snyk IDSNYK-RHEL10-KERNELUKIVIRT-21686722
  • published24 Oct 2026
  • disclosed16 Sept 2026
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Introduced: 16 Sep 2026

CVE-2026-89911  (opens in a new tab)
CWE-20  (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 kernel-uki-virt package and not the kernel-uki-virt 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.