From: Gleb Natapov Date: Tue, 12 Apr 2011 09:36:24 +0000 (+0300) Subject: KVM: Fix compound mmio X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0004c7c25757f103ddb3a9e4bcfd533aad41f9a0;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git KVM: Fix compound mmio mmio_index should be taken into account when copying data from userspace. Signed-off-by: Gleb Natapov Signed-off-by: Avi Kivity --- diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index e3ac212f7c8..a9a307a7546 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5576,7 +5576,8 @@ static int complete_mmio(struct kvm_vcpu *vcpu) if (vcpu->mmio_needed) { vcpu->mmio_needed = 0; if (!vcpu->mmio_is_write) - memcpy(vcpu->mmio_data, run->mmio.data, 8); + memcpy(vcpu->mmio_data + vcpu->mmio_index, + run->mmio.data, 8); vcpu->mmio_index += 8; if (vcpu->mmio_index < vcpu->mmio_size) { run->exit_reason = KVM_EXIT_MMIO;