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KVM: x86: Fix probable memory leak of vcpu->arch.mce_banks
author
Wei Yongjun
<yjwei@cn.fujitsu.com>
Fri, 22 Jan 2010 06:18:47 +0000
(14:18 +0800)
committer
Marcelo Tosatti
<mtosatti@redhat.com>
Mon, 25 Jan 2010 14:26:40 +0000
(12:26 -0200)
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().
Cc: stable@kernel.org
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
arch/x86/kvm/x86.c
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diff --git
a/arch/x86/kvm/x86.c
b/arch/x86/kvm/x86.c
index 6651dbf58675ee7ec8d9e7f3e145dce09953e054..b265eecc741fb857c683a6adf76f66c09eee706c 100644
(file)
--- a/
arch/x86/kvm/x86.c
+++ b/
arch/x86/kvm/x86.c
@@
-5088,6
+5088,7
@@
fail:
void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
{
+ kfree(vcpu->arch.mce_banks);
kvm_free_lapic(vcpu);
down_read(&vcpu->kvm->slots_lock);
kvm_mmu_destroy(vcpu);