diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv6/ip6_output.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index d03d6da772f3..f84ec4e9b2de 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -584,6 +584,8 @@ int ip6_fragment(struct sock *sk, struct sk_buff *skb, if (np->frag_size) mtu = np->frag_size; } + if (mtu < hlen + sizeof(struct frag_hdr) + 8) + goto fail_toobig; mtu -= hlen + sizeof(struct frag_hdr); frag_id = ipv6_select_ident(net, &ipv6_hdr(skb)->daddr, |