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authorEric Dumazet <eric.dumazet@gmail.com>2009-12-04 03:46:54 +0000
committerDavid S. Miller <davem@davemloft.net>2009-12-08 20:17:51 -0800
commit9327f7053e3993c125944fdb137a0618319ef2a0 (patch)
tree3cee7de049a2468bef930b1832c42bd1b2e69e9a /net/dccp/ipv4.c
parent74757d49016a8b06ca028196886641d7aeb78de5 (diff)
downloadblackbird-op-linux-9327f7053e3993c125944fdb137a0618319ef2a0.tar.gz
blackbird-op-linux-9327f7053e3993c125944fdb137a0618319ef2a0.zip
tcp: Fix a connect() race with timewait sockets
First patch changes __inet_hash_nolisten() and __inet6_hash() to get a timewait parameter to be able to unhash it from ehash at same time the new socket is inserted in hash. This makes sure timewait socket wont be found by a concurrent writer in __inet_check_established() Reported-by: kapil dakhane <kdakhane@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dccp/ipv4.c')
-rw-r--r--net/dccp/ipv4.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index efbcfdc12796..dad7bc4878e0 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -408,7 +408,7 @@ struct sock *dccp_v4_request_recv_sock(struct sock *sk, struct sk_buff *skb,
dccp_sync_mss(newsk, dst_mtu(dst));
- __inet_hash_nolisten(newsk);
+ __inet_hash_nolisten(newsk, NULL);
__inet_inherit_port(sk, newsk);
return newsk;
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