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(parent: 312ce39) | patch
tcp: Fix a data-race around sysctl_tcp_frto.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Wed, 20 Jul 2022 16:50:15 +0000 (09:50 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 3 Aug 2022 10:00:44 +0000 (12:00 +0200)
commit81c45f49e678c999985ef315e0cfe200192d1c2d
tree8eebe1c1c7206be2b9781a03a18ae5a48f0e399ftree
parent312ce3901fd8c1194601457fc22e0f7932f0f28bcommit | diff
tcp: Fix a data-race around sysctl_tcp_frto.

commit 706c6202a3589f290e1ef9be0584a8f4a3cc0507 upstream.

While reading sysctl_tcp_frto, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
net/ipv4/tcp_input.c diff | blob | history
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