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(parent: 1a1aedb) | patch
tcp: Fix a data-race around sysctl_tcp_stdurg.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Mon, 18 Jul 2022 17:26:50 +0000 (10:26 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 29 Jul 2022 15:25:23 +0000 (17:25 +0200)
commitd46d55e3f9f8051585fada583fc92d7826d0731a
tree5313165967819e20a09d189f749b5df8141935f4tree | snapshot
parent1a1aedbb7605314f4210174988fde8c99c25bb07commit | diff
tcp: Fix a data-race around sysctl_tcp_stdurg.

[ Upstream commit 4e08ed41cb1194009fc1a916a59ce3ed4afd77cd ]

While reading sysctl_tcp_stdurg, 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/ipv4/tcp_input.c diff | blob | history
Domain: System / Kernel;