CVE-2026-99120

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Cope with the SS bit being set in NPF exit codes When running Hyper-V from Windows 11, KVM is seeing the SS bit set in nested page fault error codes produced for shadowed NPT. The AMD manual is unclear about when SS...

CVE-2026-99120

The Linux kernel contains a vulnerability in the KVM x86 MMU component where an unexpected SS (Supervisor Shadow Stack) bit in nested page fault (#NPF) exit codes—specifically when running Hyper-V from Windows 11—causes out-of-bounds accesses in permission_fault(). This is evidenced by UBSAN repo...

EUVD-2026-112020

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Cope with the SS bit being set in NPF exit codes When running Hyper-V from Windows 11, KVM is seeing the SS bit set in nested page fault error codes produced for shadowed NPT. The AMD manual is unclear about when SS...