[91/98] KVM: x86: Fix probable memory leak of vcpu->arch.mce_banks

From: Greg KH
Date: Tue Jan 26 2010 - 18:47:34 EST

2.6.32-stable review patch. If anyone has any objections, please let us know.


From: Wei Yongjun <yjwei@xxxxxxxxxxxxxx>

commit 36cb93fd6b6bf7e9163a69a8bf20207aed5fea44 upstream.

vcpu->arch.mce_banks is malloc in kvm_arch_vcpu_init(), but
never free in any place, this may cause memory leak. So this
patch fixed to free it in kvm_arch_vcpu_uninit().

Signed-off-by: Wei Yongjun <yjwei@xxxxxxxxxxxxxx>
Signed-off-by: Marcelo Tosatti <mtosatti@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

arch/x86/kvm/x86.c | 1 +
1 file changed, 1 insertion(+)

--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4782,6 +4782,7 @@ fail:

void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
+ kfree(vcpu->arch.mce_banks);

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