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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-22 10:01:58 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-22 10:01:58 -0700
commit258152acc09c5c2df97002cd58cb37cb241aacde (patch)
tree03bcfc3e0b97f453af77b97076dd28eb1716a4fa /net/ipv4/tcp_ipv4.c
parente91924158d89086357e46887c23d714cfb4e05ea (diff)
parent243aad830e8a4cdda261626fbaeddde16b08d04a (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (38 commits) ip_gre: include route header_len in max_headroom calculation if_tunnel.h: add missing ams/byteorder.h include ipv4: Don't drop redirected route cache entry unless PTMU actually expired net: suppress lockdep-RCU false positive in FIB trie. Bluetooth: Fix kernel crash on L2CAP stress tests Bluetooth: Convert debug files to actually use debugfs instead of sysfs Bluetooth: Fix potential bad memory access with sysfs files netfilter: ctnetlink: fix reliable event delivery if message building fails netlink: fix NETLINK_RECV_NO_ENOBUFS in netlink_set_err() NET_DMA: free skbs periodically netlink: fix unaligned access in nla_get_be64() tcp: Fix tcp_mark_head_lost() with packets == 0 net: ipmr/ip6mr: fix potential out-of-bounds vif_table access KS8695: update ksp->next_rx_desc_read at the end of rx loop igb: Add support for 82576 ET2 Quad Port Server Adapter ixgbevf: Message formatting cleanups ixgbevf: Shorten up delay timer for watchdog task ixgbevf: Fix VF Stats accounting after reset ixgbe: Set IXGBE_RSC_CB(skb)->DMA field to zero after unmapping the address ixgbe: fix for real_num_tx_queues update issue ...
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
-rw-r--r--net/ipv4/tcp_ipv4.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 70df40980a8..f4df5f931f3 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -370,6 +370,11 @@ 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);