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| author | David S. Miller <davem@davemloft.net> | 2015-11-01 00:15:30 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-11-01 00:15:30 -0400 |
| commit | b75ec3af27bf011a760e2f44eb25a99b6fbb0fb3 (patch) | |
| tree | 89f4fbab2c6194b32a46eb771c4b158585bf0bb5 /net/ipv6/ip6_output.c | |
| parent | e7b63ff115f21ea6c609cbb08f3d489af627af6e (diff) | |
| parent | 523e13455ec9ec4457a5a1d24ff7132949742b70 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'net/ipv6/ip6_output.c')
| -rw-r--r-- | net/ipv6/ip6_output.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index c2650688aca7..3c8e9d8795cd 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -28,7 +28,6 @@ #include <linux/errno.h> #include <linux/kernel.h> -#include <linux/overflow-arith.h> #include <linux/string.h> #include <linux/socket.h> #include <linux/net.h> @@ -597,10 +596,9 @@ int ip6_fragment(struct net *net, struct sock *sk, struct sk_buff *skb, if (np->frag_size) mtu = np->frag_size; } - - if (overflow_usub(mtu, hlen + sizeof(struct frag_hdr), &mtu) || - mtu <= 7) + 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, &ipv6_hdr(skb)->saddr); |