| commit | 6f3180afbb22106d96a1320e175562f36a4d3506 | [log] [tgz] |
|---|---|---|
| author | Jason Wang <jasowang@redhat.com> | Tue Jan 23 17:27:26 2018 +0800 |
| committer | David S. Miller <davem@davemloft.net> | Wed Jan 24 16:55:38 2018 -0500 |
| tree | 79691386ba561416fd16ef230077f913782f84a0 | |
| parent | e9cb4239134c860e5f92c75bf5321bd377bb505b [diff] |
vhost: do not try to access device IOTLB when not initialized
The code will try to access dev->iotlb when processing
VHOST_IOTLB_INVALIDATE even if it was not initialized which may lead
to NULL pointer dereference. Fixes this by check dev->iotlb before.
Fixes: 6b1e6cc7855b0 ("vhost: new device IOTLB API")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>