| commit | 91e21df688f8a75255ca9c459da39ac96300113a | [log] [tgz] |
|---|---|---|
| author | Kuniyuki Iwashima <kuniyu@amazon.com> | Fri Jul 15 10:17:51 2022 -0700 |
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | Fri Jul 29 17:05:46 2022 +0200 |
| tree | e15e2ccd8bcdf30e64cfba88b5c91d5571eeb381 | |
| parent | be120ad89235376ef533cb4bd4cadcdd4f236cbc [diff] |
tcp: Fix a data-race around sysctl_tcp_notsent_lowat.
[ Upstream commit 55be873695ed8912eb77ff46d1d1cadf028bd0f3 ]
While reading sysctl_tcp_notsent_lowat, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.
Fixes: c9bee3b7fdec ("tcp: TCP_NOTSENT_LOWAT socket option")
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>