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KVM: PPC: fix leakage of error page in kvmppc_patch_dcbz()

PATCH RESEND Applied Wei Yongjun 2 participants 2 messages Aug 17, 2010

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Wei Yongjun

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#0 lore raw

PATCH RESEND 1/1 KVM: PPC: fix leakage of error page in kvmppc_patch_dcbz()

Add kvm_release_page_clean() after is_error_page() to avoid leakage of error page.

Signed-off-by Wei Yongjun <[email protected]>
---
 arch/powerpc/kvm/book3s.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
arch/powerpc/kvm/book3s.c +3 -1
index eee97b5..7656b6d 100644
@@ -455,8 +455,10 @@ static void kvmppc_patch_dcbz(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte)
 	int i;
 
 	hpage = gfn_to_page(vcpu->kvm, pte->raddr >> PAGE_SHIFT);
-	if (is_error_page(hpage))
+	if (is_error_page(hpage)) {
+		kvm_release_page_clean(hpage);
 		return;
+	}
 
 	hpage_offset = pte->raddr & ~PAGE_MASK;
 	hpage_offset &= ~0xFFFULL;
Signature · 1 line
1.7.0.4
Applied
#1 lore raw
Quoted 2 lines · Wei Yongjun

Add kvm_release_page_clean() after is_error_page() to avoid leakage of error page.

Applied, thanks.

Signature · 1 line
error compiling committee.c: too many arguments to function