Eduardo Habkost <ehabk...@redhat.com> 于2020年10月9日周五 上午4:31写道：
>
> Fix the following crash:
>
> $ qemu-system-x86_64 -object can-host-socketcan,id=obj0
> Segmentation fault (core dumped)
>
> Signed-off-by: Eduardo Habkost <ehabk...@redhat.com>
Reviewed-by: Li Qiang <liq...@gmail.com>
> ---
> Cc: Pavel Pisa <p...@cmp.felk.cvut.cz>
> Cc: Vikram Garhwal <fnu.vik...@xilinx.com>
> Cc: Jason Wang <jasow...@redhat.com>
> Cc: qemu-devel@nongnu.org
> ---
> net/can/can_socketcan.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/net/can/can_socketcan.c b/net/can/can_socketcan.c
> index 92b1f79385..4b68f60c6b 100644
> --- a/net/can/can_socketcan.c
> +++ b/net/can/can_socketcan.c
> @@ -194,6 +194,11 @@ static void can_host_socketcan_connect(CanHostState *ch,
> Error **errp)
> struct sockaddr_can addr;
> struct ifreq ifr;
>
> + if (!c->ifname) {
> + error_setg(errp, "'if' property not set");
> + return;
> + }
> +
> /* open socket */
> s = qemu_socket(PF_CAN, SOCK_RAW, CAN_RAW);
> if (s < 0) {
> --
> 2.26.2
>
>
