From fbe0c5591077814eead05217fc96f087b254a6a8 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Tue, 22 Mar 2011 18:32:50 +0200 Subject: 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 --- hw/virtio-serial-bus.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'hw/virtio-serial-bus.c') 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); -- cgit v1.2.3