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| author | Michael S. Tsirkin <mst@redhat.com> | 2011-03-22 18:32:50 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2011-03-28 18:34:23 +0200 |
| commit | fbe0c5591077814eead05217fc96f087b254a6a8 (patch) | |
| tree | 36d36b88718a4e480f29a3a4ff53a40c3dfbac15 /hw/virtio-serial-bus.c | |
| parent | 6cdfab2868dd593902e2b7db3ba9f49f2cc03e3f (diff) | |
virtio-serial: don't crash on invalid input
Fix crash on invalid input in virtio-serial.
Discovered by code review, untested.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/virtio-serial-bus.c')
| -rw-r--r-- | hw/virtio-serial-bus.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/hw/virtio-serial-bus.c b/hw/virtio-serial-bus.c index a82fbe9ba4..62273799b6 100644 --- a/hw/virtio-serial-bus.c +++ b/hw/virtio-serial-bus.c @@ -594,6 +594,9 @@ static int virtio_serial_load(QEMUFile *f, void *opaque, int version_id) id = qemu_get_be32(f); port = find_port_by_id(s, id); + if (!port) { + return -EINVAL; + } port->guest_connected = qemu_get_byte(f); host_connected = qemu_get_byte(f); |