This is a note to let you know that I've just added the patch titled
MIPS: KVM: Fix memory leak on VCPU
to the 3.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mips-kvm-fix-memory-leak-on-vcpu.patch
and it can be found in the queue-3.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 8c9eb041cf76038eb3b62ee259607eec9b89f48d Mon Sep 17 00:00:00 2001
From: Deng-Cheng Zhu <dengcheng.zhu@xxxxxxxxxx>
Date: Tue, 24 Jun 2014 10:31:08 -0700
Subject: MIPS: KVM: Fix memory leak on VCPU
From: Deng-Cheng Zhu <dengcheng.zhu@xxxxxxxxxx>
commit 8c9eb041cf76038eb3b62ee259607eec9b89f48d upstream.
kvm_arch_vcpu_free() is called in 2 code paths:
1) kvm_vm_ioctl()
kvm_vm_ioctl_create_vcpu()
kvm_arch_vcpu_destroy()
kvm_arch_vcpu_free()
2) kvm_put_kvm()
kvm_destroy_vm()
kvm_arch_destroy_vm()
kvm_mips_free_vcpus()
kvm_arch_vcpu_free()
Neither of the paths handles VCPU free. We need to do it in
kvm_arch_vcpu_free() corresponding to the memory allocation in
kvm_arch_vcpu_create().
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@xxxxxxxxxx>
Reviewed-by: James Hogan <james.hogan@xxxxxxxxxx>
Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/mips/kvm/kvm_mips.c | 1 +
1 file changed, 1 insertion(+)
--- a/arch/mips/kvm/kvm_mips.c
+++ b/arch/mips/kvm/kvm_mips.c
@@ -389,6 +389,7 @@ void kvm_arch_vcpu_free(struct kvm_vcpu
kfree(vcpu->arch.guest_ebase);
kfree(vcpu->arch.kseg0_commpage);
+ kfree(vcpu);
}
void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
Patches currently in stable-queue which might be from dengcheng.zhu@xxxxxxxxxx are
queue-3.15/mips-kvm-fix-memory-leak-on-vcpu.patch
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