motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-04 00:03:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

net: check the existence of peer before trying to pad

Browse source 
There could be case that peer is NULL. This can happen when during
network device hot-add where net device needs to be added first. So
the patch check the existence of peer before trying to do the pad.

Fixes: 969e50b61a ("net: Pad short frames to minimum size before sending from SLiRP/TAP")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Message-id: 20210423031803.1479-1-jasowang@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Jason Wang 2021-04-23 11:18:03 +08:00 • committed by Peter Maydell
parent b1cffefa1b
commit bc38e31b4e
4 changed files with 8 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

2
net/slirp.c
View file

@ -119,7 +119,7 @@ static ssize_t net_slirp_send_packet(const void *pkt, size_t pkt_len,
uint8_t min_pkt[ETH_ZLEN];
size_t min_pktsz = sizeof(min_pkt);
if (!s->nc.peer->do_not_pad) {
if (net_peer_needs_padding(&s->nc)) {
if (eth_pad_short_frame(min_pkt, &min_pktsz, pkt, pkt_len)) {
pkt = min_pkt;
pkt_len = min_pktsz;