diff options
| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2013-04-26 09:14:47 +0300 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2013-04-26 09:14:47 +0300 |
| commit | 9bf9d47a29afbf7a43eae74a988a4aefe88ccbfd (patch) | |
| tree | 966b838e2190a7d6868cda5f4eee6d0f490da27c /net/ipv4/tcp_output.c | |
| parent | e45f265e7ea3ee6de24efe91fe2928d603cb1741 (diff) | |
| parent | 138f296e140f79cb955caba70690076fb14e6f6d (diff) | |
Merge branch '3.10/fb-mmap' into for-next
Merge topic branch to get vm_iomap_memory into use.
Conflicts:
drivers/video/fbmon.c
Diffstat (limited to 'net/ipv4/tcp_output.c')
| -rw-r--r-- | net/ipv4/tcp_output.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 5d0b4387cba6..509912a5ff98 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -2388,8 +2388,12 @@ int __tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb) */ TCP_SKB_CB(skb)->when = tcp_time_stamp; - /* make sure skb->data is aligned on arches that require it */ - if (unlikely(NET_IP_ALIGN && ((unsigned long)skb->data & 3))) { + /* make sure skb->data is aligned on arches that require it + * and check if ack-trimming & collapsing extended the headroom + * beyond what csum_start can cover. + */ + if (unlikely((NET_IP_ALIGN && ((unsigned long)skb->data & 3)) || + skb_headroom(skb) >= 0xFFFF)) { struct sk_buff *nskb = __pskb_copy(skb, MAX_TCP_HEADER, GFP_ATOMIC); return nskb ? tcp_transmit_skb(sk, nskb, 0, GFP_ATOMIC) : @@ -2709,6 +2713,7 @@ struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst, skb_reserve(skb, MAX_TCP_HEADER); skb_dst_set(skb, dst); + security_skb_owned_by(skb, sk); mss = dst_metric_advmss(dst); if (tp->rx_opt.user_mss && tp->rx_opt.user_mss < mss) |