On Thu, 16 Mar 2023 17:45:44 +0000, Marc Zyngier wrote:
> Ard recently reported a really odd warning generated with KASAN, where
> the page table walker we use to inspect the userspace page tables was
> going into the weeds and accessing something that was looking totally
> unrelated (and previously freed).
>
> Will and I spent quite some time looking into it, and while we were
> not able to reproduce the issue, we were able to spot at least a
> couple of issues that could partially explain the issue.
>
> [...]
Applied to kvmarm/fixes, thanks!
[1/2] KVM: arm64: Disable interrupts while walking userspace PTs
https://git.kernel.org/kvmarm/kvmarm/c/e86fc1a3a3e9
[2/2] KVM: arm64: Check for kvm_vma_mte_allowed in the critical section
https://git.kernel.org/kvmarm/kvmarm/c/8c2e8ac8ad4b
--
Best,
Oliver
