CVE-2026-80665

High

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Inject SEA if kvm_translate_vncr() can't resolve PFN kvm_handle_vncr_abort() assumes that s1_walk_result conveys an abort when kvm_translate_vncr() returns -EFAULT. This is not always the case as it's possible to encounter 'late' failures on the output of S1 translation, e.g. a GFN outside of the memslots. Fix it by preparing an external abort before returning from kvm_translate_vncr(). Get rid of the BUG_ON() in the fault injection path while at it.

SeverityHigh
CVSS7.1
Exploit probability—
ProductLinux
PublishedAug 28, 2026
First seenAug 28, 2026

How to fix

Update
  • Linux Linux4ead4def04659739c399bfcb063f8a906194c79f, 53804b6839573c9c6fff5f4cf075d6746267345e, 9f3e83345a56280efffe235c65593c7e544c0fcc or later

Affected products

ProductAffected versionsFixed in
Linux Linux2a359e072596fcb2e9e85017a865e3618a2fe5b5 ≤ v < 4ead4def04659739c399bfcb063f8a906194c79f, 2a359e072596fcb2e9e85017a865e3618a2fe5b5 ≤ v < 53804b6839573c9c6fff5f4cf075d6746267345e, 2a359e072596fcb2e9e85017a865e3618a2fe5b5 ≤ v < 9f3e83345a56280efffe235c65593c7e544c0fcc, 6.164ead4def04659739c399bfcb063f8a906194c79f, 53804b6839573c9c6fff5f4cf075d6746267345e, 9f3e83345a56280efffe235c65593c7e544c0fcc

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