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authorDavid Woodhouse <David.Woodhouse@intel.com>2010-05-10 14:32:46 +0100
committerDavid Woodhouse <David.Woodhouse@intel.com>2010-05-10 14:32:46 +0100
commit0ae28a35bcb7984838acbf28bfba9c030f8b74f0 (patch)
tree4f449d929b5df9e126e839f388ff0fd2b52028a0 /net/ipv4/tcp_ipv4.c
parent6f1f3d0ab5c3eeea9f04486481c25e9afdfa26c5 (diff)
parentb57f95a38233a2e73b679bea4a5453a1cc2a1cc9 (diff)
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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: drivers/mtd/mtdcore.c Pull in the bdi fixes and ARM platform changes that other outstanding patches depend on.
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
-rw-r--r--net/ipv4/tcp_ipv4.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 70df409..3c23e70 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -60,6 +60,7 @@
#include <linux/jhash.h>
#include <linux/init.h>
#include <linux/times.h>
+#include <linux/slab.h>
#include <net/net_namespace.h>
#include <net/icmp.h>
@@ -370,6 +371,11 @@ void tcp_v4_err(struct sk_buff *icmp_skb, u32 info)
if (sk->sk_state == TCP_CLOSE)
goto out;
+ if (unlikely(iph->ttl < inet_sk(sk)->min_ttl)) {
+ NET_INC_STATS_BH(net, LINUX_MIB_TCPMINTTLDROP);
+ goto out;
+ }
+
icsk = inet_csk(sk);
tp = tcp_sk(sk);
seq = ntohl(th->seq);