diff options
| -rw-r--r-- | net/packet/af_packet.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 9cf3e2110..4dfa37b82 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -2243,7 +2243,7 @@ static int packet_snd(struct socket *sock, int vnet_hdr_len; struct packet_sock *po = pkt_sk(sk); unsigned short gso_type = 0; - int hlen, tlen; + int hlen, tlen, linear; int extra_len = 0; /* @@ -2337,7 +2337,9 @@ static int packet_snd(struct socket *sock, err = -ENOBUFS; hlen = LL_RESERVED_SPACE(dev); tlen = dev->needed_tailroom; - skb = packet_alloc_skb(sk, hlen + tlen, hlen, len, vnet_hdr.hdr_len, + linear = vnet_hdr.hdr_len; + linear = max(linear, min_t(int, len, dev->hard_header_len)); + skb = packet_alloc_skb(sk, hlen + tlen, hlen, len, linear, msg->msg_flags & MSG_DONTWAIT, &err); if (skb == NULL) goto out_unlock; |