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authorMark Brown <broonie@kernel.org>2017-08-25 14:44:05 +0100
committerMark Brown <broonie@kernel.org>2017-08-25 14:44:05 +0100
commitb7e2672d1a23a53bd2657704bf94a8dc8880cc49 (patch)
tree7e315f84913b6cd896fda558724961b39a735587 /net/ipv4/ip_output.c
parentc0d1cb8366bab9963822c27b0d40cb8b32928cdc (diff)
parent9ce76511b67be8fbcdff36b7e1662e3887bb7377 (diff)
Merge tag 'sound-4.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound into asoc-rt5677
sound fixes for 4.13-rc7 We're keeping in a good shape, this batch contains just a few small fixes (a regression fix for ASoC rt5677 codec, NULL dereference and error-path fixes in firewire, and a corner-case ioctl error fix for user TLV), as well as usual quirks for USB-audio and HD-audio.
Diffstat (limited to 'net/ipv4/ip_output.c')
-rw-r--r--net/ipv4/ip_output.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 7eb252dcecee..50c74cd890bc 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -599,6 +599,7 @@ int ip_do_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
hlen = iph->ihl * 4;
mtu = mtu - hlen; /* Size of data space */
IPCB(skb)->flags |= IPSKB_FRAG_COMPLETE;
+ ll_rs = LL_RESERVED_SPACE(rt->dst.dev);
/* When frag_list is given, use it. First, check its validity:
* some transformers could create wrong frag_list or break existing
@@ -614,14 +615,15 @@ int ip_do_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
if (first_len - hlen > mtu ||
((first_len - hlen) & 7) ||
ip_is_fragment(iph) ||
- skb_cloned(skb))
+ skb_cloned(skb) ||
+ skb_headroom(skb) < ll_rs)
goto slow_path;
skb_walk_frags(skb, frag) {
/* Correct geometry. */
if (frag->len > mtu ||
((frag->len & 7) && frag->next) ||
- skb_headroom(frag) < hlen)
+ skb_headroom(frag) < hlen + ll_rs)
goto slow_path_clean;
/* Partially cloned skb? */
@@ -711,8 +713,6 @@ slow_path:
left = skb->len - hlen; /* Space per frame */
ptr = hlen; /* Where to start from */
- ll_rs = LL_RESERVED_SPACE(rt->dst.dev);
-
/*
* Fragment the datagram.
*/