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(parent: 6172040) | patch
ip: Fix a data-race around sysctl_ip_autobind_reuse.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Wed, 13 Jul 2022 20:51:56 +0000 (13:51 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 29 Jul 2022 15:25:13 +0000 (17:25 +0200)
commit083a6ac9481e38aea03e1088faa4f6963893c2ce
tree9c1a9bc2478f63b0b852fb505dcaf26994d1b46btree | snapshot
parent6172040faafcaf84f0c76c49a8676a613ced425ecommit | diff
ip: Fix a data-race around sysctl_ip_autobind_reuse.

[ Upstream commit e563025c280d78bbb76fd23f71d398d1202319fe ]

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

Fixes: f3f5e4293ace ("tcp: bind(0) remove the SO_REUSEADDR restriction when ephemeral ports are exhausted.")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
net/ipv4/inet_connection_sock.c diff | blob | history
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