From: Wei Yongjun <yjwei@cn.fujitsu.com>
Date: Fri, 22 Jan 2010 06:18:47 +0000 (+0800)
Subject: KVM: x86: Fix probable memory leak of vcpu->arch.mce_banks
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=36cb93fd6b6bf7e9163a69a8bf20207aed5fea44;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

KVM: x86: Fix probable memory leak of vcpu->arch.mce_banks

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>
---

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 6651dbf5867..b265eecc741 100644
--- 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);