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(parent: a58deff) | patch
tcp: Fix a data-race around sysctl_tcp_notsent_lowat.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Fri, 15 Jul 2022 17:17:51 +0000 (10:17 -0700)
committerDavid S. Miller <davem@davemloft.net>
Mon, 18 Jul 2022 11:21:54 +0000 (12:21 +0100)
commit45ff95121d90e1b1e5c8da548e6a36921aee7b09
treedc09e8b892a057fcc2957dab4ddb64cafd71c6d6tree | snapshot
parenta58deff4c7e8cced5ce8b29a9b509d7b09f9a789commit | diff
tcp: Fix a data-race around sysctl_tcp_notsent_lowat.

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

Fixes: 7f900a05a58b ("tcp: TCP_NOTSENT_LOWAT socket option")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/net/tcp.h diff | blob | history
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