Syzbot CI

Subject	KVM: SVM: Fix (hilarious) exit_code bugs
Author	seanjc@google.com
Date	2025-11-13 22:56:13 +0000 UTC
Version
Cc	decui@microsoft.com haiyangz@microsoft.com jmattson@google.com kvm@vger.kernel.org kys@microsoft.com linux-hyperv@vger.kernel.org linux-kernel@vger.kernel.org pbonzini@redhat.com seanjc@google.com vkuznets@redhat.com wei.liu@kernel.org yosry.ahmed@linux.dev

Subject

Author

seanjc@google.com

Date

2025-11-13 22:56:13 +0000 UTC

Version

decui@microsoft.com haiyangz@microsoft.com jmattson@google.com kvm@vger.kernel.org kys@microsoft.com linux-hyperv@vger.kernel.org linux-kernel@vger.kernel.org pbonzini@redhat.com seanjc@google.com vkuznets@redhat.com wei.liu@kernel.org yosry.ahmed@linux.dev

Name	Content [All]
[PATCH 1/9] KVM: nSVM: Clear exit_code_hi in VMCB when synthesizing nested VM-Exits	[Body]
[PATCH 2/9] KVM: nSVM: Set exit_code_hi to -1 when synthesizing SVM_EXIT_ERR (failed VMRUN)	[Body]
[PATCH 3/9] KVM: SVM: Add a helper to detect VMRUN failures	[Body]
[PATCH 4/9] KVM: SVM: Open code handling of unexpected exits in svm_invoke_exit_handler()	[Body]
[PATCH 5/9] KVM: SVM: Check for an unexpected VM-Exit after RETPOLINE "fast" handling	[Body]
[PATCH 6/9] KVM: SVM: Filter out 64-bit exit codes when invoking exit handlers on bare metal	[Body]
[PATCH 7/9] KVM: SVM: Treat exit_code as an unsigned 64-bit value through all of KVM	[Body]
[PATCH 8/9] KVM: SVM: Limit incorrect check on SVM_EXIT_ERR to running as a VM	[Body]
[PATCH 9/9] KVM: SVM: Harden exit_code against being used in Spectre-like attacks	[Body]

Name

Content [All]

Passed

Test	Base	Patched	Verdict
[KASAN] Build Base	6d7e7251d03f98f26f2ee0dfd21bb0a0480a2178 [Config]		passed [Log]
[KASAN] Boot test: Base	6d7e7251d03f98f26f2ee0dfd21bb0a0480a2178 [Config]		passed
[KASAN] Build Patched		6d7e7251d03f98f26f2ee0dfd21bb0a0480a2178 [Config] [patched]	passed [Log]
[KASAN] Boot test: Patched		6d7e7251d03f98f26f2ee0dfd21bb0a0480a2178 [Config] [patched]	passed
[KASAN] Fuzzing	6d7e7251d03f98f26f2ee0dfd21bb0a0480a2178 [Config]	6d7e7251d03f98f26f2ee0dfd21bb0a0480a2178 [Config] [patched]	passed [Log] [Artifacts]