net: Fix a data-race around sysctl_somaxconn.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Tue, 23 Aug 2022 17:47:00 +0000 (10:47 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 5 Sep 2022 08:23:55 +0000 (10:23 +0200)
commit29e01227e3fcbb82443c04060fc37e7831a7774c
treed19573c7909bd6fa514b5b89dcc0766d60232329
parentadd7c2af16bb55c241e114c83ed9baee62f3374b
net: Fix a data-race around sysctl_somaxconn.

[ Upstream commit 3c9ba81d72047f2e81bb535d42856517b613aba7 ]

While reading sysctl_somaxconn, 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: Sasha Levin <sashal@kernel.org>
net/socket.c