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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
[firefly-linux-kernel-4.4.55.git]
/
net
/
ipv6
/
ip6_output.c
diff --git
a/net/ipv6/ip6_output.c
b/net/ipv6/ip6_output.c
index 0c89671e0767e5debe909d654cd9d089bcf8fa19..3c8e9d8795cdbfff8f46408614e05853fae5cafb 100644
(file)
--- a/
net/ipv6/ip6_output.c
+++ b/
net/ipv6/ip6_output.c
@@
-596,6
+596,8
@@
int ip6_fragment(struct net *net, 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,