| commit | 993675a3100b16a4c80dfd70cbcde8ea7127b31d | |
| author | Willem de Bruijn <willemb@google.com> | |
| Wed, 11 Jul 2018 16:00:45 +0000 (11 12:00 -0400) | ||
| committer | David S. Miller <davem@davemloft.net> | |
| Thu, 12 Jul 2018 23:55:59 +0000 (12 16:55 -0700) | ||
| tree | feef4c1e7ca426c40bdbc1da1f745ee938b13eb3 | treesnapshot (tar.gz zip) |
| parent | bab2c80e5a6c855657482eac9e97f5f3eedb509a | commitdiff |
packet: reset network header if packet shorter than ll reserved space
If variable length link layer headers result in a packet shorter
than dev->hard_header_len, reset the network header offset. Else
skb->mac_len may exceed skb->len after skb_mac_reset_len.
packet_sendmsg_spkt already has similar logic.
Fixes: b84bbaf7a6c8 ("packet: in packet_snd start writing at link layer allocation")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If variable length link layer headers result in a packet shorter
than dev->hard_header_len, reset the network header offset. Else
skb->mac_len may exceed skb->len after skb_mac_reset_len.
packet_sendmsg_spkt already has similar logic.
Fixes: b84bbaf7a6c8 ("packet: in packet_snd start writing at link layer allocation")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| net/packet/af_packet.c | diffblobblamehistory |