From 646bab55a278ceb1cf43b1f80d3dd468be62a421 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Tue, 17 Aug 2010 10:08:52 +0800 Subject: 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 Signed-off-by: Avi Kivity --- arch/powerpc/kvm/book3s.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'arch/powerpc') diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c index eee97b5..7656b6d 100644 --- a/arch/powerpc/kvm/book3s.c +++ b/arch/powerpc/kvm/book3s.c @@ -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; -- cgit v1.1