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Date: Fri, 14 Aug 2015 10:45:18 -0700 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Paolo Bonzini <pbonzini@...hat.com>, Wang Kai <morgan.wang@...wei.com> Subject: [PATCH 3.14 41/44] kvm: x86: fix kvm_apic_has_events to check for NULL pointer 3.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Paolo Bonzini <pbonzini@...hat.com> 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@...hat.com> Signed-off-by: Wang Kai <morgan.wang@...wei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- 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 @@ -165,7 +165,7 @@ static inline u16 apic_logical_id(struct 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); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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