diff options
| author | David S. Miller <davem@davemloft.net> | 2015-03-10 06:38:02 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-03-10 06:38:02 +0300 |
| commit | 3cef5c5b0b56f3f90b0e9ff8d3f8dc57f464cc14 (patch) | |
| tree | 02e95f15bd8a04071a9a36f534a92a066a8ce66a /net/ipv4/ip_fragment.c | |
| parent | 8ac467e837a24eb024177b4b01013d8e6764913a (diff) | |
| parent | affb8172de395a6e1db52ed9790ca0456d8c29a9 (diff) | |
| download | linux-3cef5c5b0b56f3f90b0e9ff8d3f8dc57f464cc14.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/net/ethernet/cadence/macb.c
Overlapping changes in macb driver, mostly fixes and cleanups
in 'net' overlapping with the integration of at91_ether into
macb in 'net-next'.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ip_fragment.c')
| -rw-r--r-- | net/ipv4/ip_fragment.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c index 2c8d98e728c0..145a50c4d566 100644 --- a/net/ipv4/ip_fragment.c +++ b/net/ipv4/ip_fragment.c @@ -659,27 +659,30 @@ EXPORT_SYMBOL(ip_defrag); struct sk_buff *ip_check_defrag(struct sk_buff *skb, u32 user) { struct iphdr iph; + int netoff; u32 len; if (skb->protocol != htons(ETH_P_IP)) return skb; - if (skb_copy_bits(skb, 0, &iph, sizeof(iph)) < 0) + netoff = skb_network_offset(skb); + + if (skb_copy_bits(skb, netoff, &iph, sizeof(iph)) < 0) return skb; if (iph.ihl < 5 || iph.version != 4) return skb; len = ntohs(iph.tot_len); - if (skb->len < len || len < (iph.ihl * 4)) + if (skb->len < netoff + len || len < (iph.ihl * 4)) return skb; if (ip_is_fragment(&iph)) { skb = skb_share_check(skb, GFP_ATOMIC); if (skb) { - if (!pskb_may_pull(skb, iph.ihl*4)) + if (!pskb_may_pull(skb, netoff + iph.ihl * 4)) return skb; - if (pskb_trim_rcsum(skb, len)) + if (pskb_trim_rcsum(skb, netoff + len)) return skb; memset(IPCB(skb), 0, sizeof(struct inet_skb_parm)); if (ip_defrag(skb, user)) |