Re: [PATCH] KVM: nSVM: Remove a user-triggerable WARN on nested_svm_load_cr3() succeeding
From: Sean Christopherson
Date: Mon Jan 12 2026 - 12:41:48 EST
On Tue, 16 Dec 2025 08:17:54 -0800, Sean Christopherson wrote:
> Drop the WARN in svm_set_nested_state() on nested_svm_load_cr3() failing
> as it is trivially easy to trigger from userspace by modifying CPUID after
> loading CR3. E.g. modifying the state restoration selftest like so:
>
> --- tools/testing/selftests/kvm/x86/state_test.c
> +++ tools/testing/selftests/kvm/x86/state_test.c
> @@ -280,7 +280,16 @@ int main(int argc, char *argv[])
>
> [...]
Applied to kvm-x86 svm, thanks!
[1/1] KVM: nSVM: Remove a user-triggerable WARN on nested_svm_load_cr3() succeeding
https://github.com/kvm-x86/linux/commit/fc3ba56385d0
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https://github.com/kvm-x86/linux/tree/next