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(parent: 3a25dfa) | patch
KVM: MMU: Reset mmu->pkru_mask to avoid stale data
authorChenyi Qiang <chenyi.qiang@intel.com>
Thu, 21 Oct 2021 07:10:22 +0000 (15:10 +0800)
committerPaolo Bonzini <pbonzini@redhat.com>
Thu, 21 Oct 2021 15:09:29 +0000 (11:09 -0400)
commita3ca5281bb771d8103ea16f0a6a8a5df9a7fb4f3
tree27a872ad72424bb825cedf0ee3a7b79c210b6758tree | snapshot
parent3a25dfa67fe40f3a2690af2c562e0947a78bd6a0commit | diff
KVM: MMU: Reset mmu->pkru_mask to avoid stale data

When updating mmu->pkru_mask, the value can only be added but it isn't
reset in advance. This will make mmu->pkru_mask keep the stale data.
Fix this issue.

Fixes: 2d344105f57c ("KVM, pkeys: introduce pkru_mask to cache conditions")
Signed-off-by: Chenyi Qiang <chenyi.qiang@intel.com>
Message-Id: <20211021071022.1140-1-chenyi.qiang@intel.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/kvm/mmu/mmu.c diff | blob | history
Domain: System / Kernel;