Riskcovery

CVE-2026-80665

KVM: arm64: nv: Inject SEA if kvm_translate_vncr() can't resolve PFN

State
Published
Severity
7.1 High
Published
Aug 28, 2026
Updated
Aug 29, 2026
Reserved
Aug 26, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.17.1 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 2a359e072596fcb2e9e85017a865e3618a2fe5b5 to before 4ead4def04659739c399bfcb063f8a906194c79fAffected
  • 2a359e072596fcb2e9e85017a865e3618a2fe5b5 to before 53804b6839573c9c6fff5f4cf075d6746267345eAffected
  • 2a359e072596fcb2e9e85017a865e3618a2fe5b5 to before 9f3e83345a56280efffe235c65593c7e544c0fccAffected
LinuxLinux
  • 6.16Affected
  • before 6.16Not affected
  • 6.18.40 through 6.18.*Not affected
  • 7.1.5 through 7.1.*Not affected
  • 7.2 and laterNot affected

References

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