This is a note to let you know that I've just added the patch titled
kvm: x86: fix kvm_apic_has_events to check for NULL pointer
to the 4.1-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:
kvm-x86-fix-kvm_apic_has_events-to-check-for-null-pointer.patch
and it can be found in the queue-4.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From ce40cd3fc7fa40a6119e5fe6c0f2bc0eb4541009 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Date: Sat, 30 May 2015 14:31:24 +0200
Subject: kvm: x86: fix kvm_apic_has_events to check for NULL pointer
From: Paolo Bonzini <pbonzini@xxxxxxxxxx>
commit ce40cd3fc7fa40a6119e5fe6c0f2bc0eb4541009 upstream.
Malicious (or egregiously buggy) userspace can trigger it, but it
should never happen in normal operation.
Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Signed-off-by: Wang Kai <morgan.wang@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/x86/kvm/lapic.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/kvm/lapic.h
+++ b/arch/x86/kvm/lapic.h
@@ -150,7 +150,7 @@ static inline bool kvm_apic_vid_enabled(
static inline bool kvm_apic_has_events(struct kvm_vcpu *vcpu)
{
- return vcpu->arch.apic->pending_events;
+ return kvm_vcpu_has_lapic(vcpu) && vcpu->arch.apic->pending_events;
}
bool kvm_apic_pending_eoi(struct kvm_vcpu *vcpu, int vector);
Patches currently in stable-queue which might be from pbonzini@xxxxxxxxxx are
queue-4.1/kvm-x86-fix-kvm_apic_has_events-to-check-for-null-pointer.patch
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