Re: [PATCH v2 0/2] KVM: x86: Ensure userspace can't run L2 with stale PFNs

[Sean Christopherson]

On Mon, 21 Sep 2026 14:16:06 -0700, Sean Christopherson wrote:
> Fix a class of bugs where KVM (a) lets userspace run L2 with potentially stale
> PFNs and (b) fails to set kvm_run appropriately and so could unintentionally
> cause a well-behaved VMM to run afoul of (a).
> 
> v2:
>  - Re-pend KVM_REQ_GET_NESTED_STATE_PAGES in the common vcpu_enter_guest()
>    path.
>  - Fix the kvm_run bug(s).
> 
> [...]

Applied to kvm-x86 fixes, thanks!

[1/2] KVM: x86: Re-pend GET_NESTED_STATE_PAGES if getting said pages fails
      https://github.com/kvm-x86/linux/commit/10180a277549
[2/2] KVM: x86: Fill kvm_run exit fields in common get_nested_state_pages() error paths
      https://github.com/kvm-x86/linux/commit/c1214f293d77

--
https://github.com/kvm-x86/linux/tree/next