CVE-2026-72279

CVE CVE-2026-72279EUVD EUVD-2026-59178Published 2026-08-15T05:55:04.000ZLast changed 2026-08-17T05:42:14.000ZCVSS 9.0

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Respect read-only PFN when mapping L1 VNCR KVM currently maps the L1 VNCR into the host stage-1 by relying entirely on the permissions of the guest stage-1. At the same time, it is entirely possible that the backing PFN is read-only (e.g. RO memslot), meaning that the L1 VNCR should use at most a read-only mapping. Cache the writability of the PFN in the VNCR TLB and use it to constrain the resulting fixmap permissions. Promote VNCR permission faults to an SEA in the case where the guest attempts to write to a read-only endpoint. Conveniently, this also plugs a page leak found by Sashiko [*] resulting from the early return for a read-only PFN.

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: 7.1.5; patch: 0; 2a359e072596fcb2e9e85017a865e3618a2fe5b5 <d35defbdfcb15296ebe28968ad7452c1a8c11cea; 6.16; patch: 6.18.40; 2a359e072596fcb2e9e85017a865e3618a2fe5b5 <5c50db5bcbb9073cb2fd97be51b962de92f429e9; 2a359e072596fcb2e9e85017a865e3618a2fe5b5 <2684e02bac41c5220f6c1ab2bdcc957b71812977; 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

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.