Linux kernel bug fix: KVM: SEV: Validate XCR0 provided by guest in GHCB
Subsystem: arch/x86 (arch/x86/include/asm/kvm_host.h)
Bug type: hang, severity: medium
Files changed: arch/x86/include/asm/kvm_host.h;arch/x86/kvm/svm/sev.c;arch/x86/kvm/x86.c
Introduced by Tom Lendacky on 2020-12-15 05:20:47 -0500; fixed by Sean Christopherson on 2025-09-23 08:55:19 -0700 (lifetime: 1743 days)