kvm: x86: fix kvm_apic_has_events to check for NULL pointer
authorPaolo Bonzini <pbonzini@redhat.com>
Sat, 30 May 2015 12:31:24 +0000 (14:31 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 17 Aug 2015 03:52:26 +0000 (20:52 -0700)
commitf627ab0afcd983b3cb5f6d47c5006fd14cfc9a01
tree812858d6ab93cf7ab14417f62cd518ea7d3e949e
parent52124831a34a52764a2ce76f1ba0703ecf9d220a
kvm: x86: fix kvm_apic_has_events to check for NULL pointer

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@redhat.com>
Signed-off-by: Wang Kai <morgan.wang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/x86/kvm/lapic.h