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(parent: ad9f4f5) | patch
tcp: protect sysctl_tcp_cookie_size reads
authorEric Dumazet <eric.dumazet@gmail.com>
Tue, 7 Dec 2010 12:20:47 +0000 (12:20 +0000)
committerDavid S. Miller <davem@davemloft.net>
Wed, 8 Dec 2010 20:34:09 +0000 (12:34 -0800)
commitf19872575ff7819a3723154657a497d9bca66b33
tree3c84b591c773611a6c4c00589f69a6639e83b8e0tree | snapshot
parentad9f4f50fe9288bbe65b7dfd76d8820afac6a24ccommit | diff
tcp: protect sysctl_tcp_cookie_size reads

Make sure sysctl_tcp_cookie_size is read once in
tcp_cookie_size_check(), or we might return an illegal value to caller
if sysctl_tcp_cookie_size is changed by another cpu.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Cc: William Allen Simpson <william.allen.simpson@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/tcp_output.c diff | blob | history
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