CVE-2026-89911

CVE CVE-2026-89911EUVD EUVD-2026-80511Published 2026-09-16T10:32:08.000ZLast changed 2026-09-16T14:40:01.000ZCVSS 7.9

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

• Linux — Linux patch: 7.2.5; patch: 0; 4ffa72ad8f37e73bbb6c0baa88557bcb4fd39929 <2de38f0448b45d27eba984fc0d9edb7a138972c2; patch: 6.18.51; 4ffa72ad8f37e73bbb6c0baa88557bcb4fd39929 <69a598288195947a1662b53de702eb6976af96b7; 6.16; 4ffa72ad8f37e73bbb6c0baa88557bcb4fd39929 <566b1f08d983615f731cc693f2ad59db302c6b57; patch: 7.3-rc1

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

• Linux — Linux

Patchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.