KVM: x86: fix memoryleak in kvm_arch_vcpu_create()
authorMiaohe Lin <linmiaohe@huawei.com>
Thu, 1 Sep 2022 12:23:00 +0000 (20:23 +0800)
committerPaolo Bonzini <pbonzini@redhat.com>
Thu, 1 Sep 2022 23:20:58 +0000 (19:20 -0400)
commit3c0ba05ce9c92f94ef5b7f7f1e0102c4a3cd2a77
treeffbb93f0555d91145fbf3c842218aba393cdf24d
parent0204750bd4c6ccc2fb7417618477f10373b33f56
KVM: x86: fix memoryleak in kvm_arch_vcpu_create()

When allocating memory for mci_ctl2_banks fails, KVM doesn't release
mce_banks leading to memoryleak. Fix this issue by calling kfree()
for it when kcalloc() fails.

Fixes: 281b52780b57 ("KVM: x86: Add emulation for MSR_IA32_MCx_CTL2 MSRs.")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Message-Id: <20220901122300.22298-1-linmiaohe@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/kvm/x86.c