CVE-2026-80665

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux2a359e072596fcb2e9e85017a865e3618a2fe5b5 < 4ead4def04659739c399bfcb063f8a906194c79faffected
LinuxLinux2a359e072596fcb2e9e85017a865e3618a2fe5b5 < 53804b6839573c9c6fff5f4cf075d6746267345eaffected
LinuxLinux2a359e072596fcb2e9e85017a865e3618a2fe5b5 < 9f3e83345a56280efffe235c65593c7e544c0fccaffected
LinuxLinux6.16affected
LinuxLinux0 < 6.16unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References