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(parent: ed2e923) | patch
inet: fix races in reqsk_queue_hash_req()
authorEric Dumazet <edumazet@google.com>
Sat, 19 Sep 2015 16:48:04 +0000 (09:48 -0700)
committerDavid S. Miller <davem@davemloft.net>
Mon, 21 Sep 2015 23:32:29 +0000 (16:32 -0700)
commit29c6852602e259d2c1882f320b29d5c3fec0de04
tree7a9804d32ed57d2898c67e13e607031341434c7atree | snapshot (tar.gz zip)
parented2e923945892a8372ab70d2f61d364b0b6d9054commit | diff
inet: fix races in reqsk_queue_hash_req()

Before allowing lockless LISTEN processing, we need to make
sure to arm the SYN_RECV timer before the req socket is visible
in hash tables.

Also, req->rsk_hash should be written before we set rsk_refcnt
to a non zero value.

Fixes: fa76ce7328b2 ("inet: get rid of central tcp/dccp listener timer")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ying Cai <ycai@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/inet_connection_sock.c diff | blob | blame | history