On 24/06/21 10:43, Nicholas Piggin wrote:

Excerpts from David Stevens's message of June 24, 2021 1:57 pm:

quoted

From: David Stevens <redacted>

Changelog? This looks like a bug, should it have a Fixes: tag?

Probably has been there forever... The best way to fix the bug would be 
to nuke mmu_audit.c, which I've threatened to do many times but never 
followed up on.

Paolo

Thanks,
Nick

quoted

Signed-off-by: David Stevens <redacted>
---
  arch/x86/kvm/mmu/mmu_audit.c | 2 ++
  1 file changed, 2 insertions(+)

diff --git a/arch/x86/kvm/mmu/mmu_audit.c b/arch/x86/kvm/mmu/mmu_audit.c
index cedc17b2f60e..97ff184084b4 100644
--- a/arch/x86/kvm/mmu/mmu_audit.c
+++ b/arch/x86/kvm/mmu/mmu_audit.c

@@ -121,6 +121,8 @@ static void audit_mappings(struct kvm_vcpu *vcpu, u64 *sptep, int level)
  		audit_printk(vcpu->kvm, "levels %d pfn %llx hpa %llx "
  			     "ent %llxn", vcpu->arch.mmu->root_level, pfn,
  			     hpa, *sptep);
+
+	kvm_release_pfn_clean(pfn);
  }
  
  static void inspect_spte_has_rmap(struct kvm *kvm, u64 *sptep)

-- 
2.32.0.93.g670b81a890-goog

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