CVE-2026-72278

CVE CVE-2026-72278EUVD EUVD-2026-59177Published 2026-08-15T05:54:59.000ZLast changed 2026-08-17T05:42:13.000ZCVSS 9.3

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Re-translate VNCR before injecting abort KVM faults in the VNCR page with FOLL_WRITE whenever the guest aborts for a write, similar to how a regular stage-2 mapping is handled. It is entirely possible that the guest reads from the VNCR before writing to it, in which case the PFN could only be read-only. Invalidate the VNCR TLB and re-fetch the translation upon taking a VNCR abort, allowing the host mapping to be faulted in for write the second time around. Interestingly enough, this also satisfies the ordering requirements of FEAT_ETS2/3 between descriptor updates and MMU faults.

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: 0; 2a359e072596fcb2e9e85017a865e3618a2fe5b5 <bb645aa0a4caeaf7f9cd32e9a948594d434c1a8f; 2a359e072596fcb2e9e85017a865e3618a2fe5b5 <ea7a76d7d614b5f82b4d0785f9af3550e860a71a; patch: 7.1.5; patch: 6.18.40; 6.16; 2a359e072596fcb2e9e85017a865e3618a2fe5b5 <0a5dd8cf4d58ea28da132c2097cd1c525302ac48; patch: 7.2

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

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