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(parent: 7160a9e) | patch
net: Fix a data-race around sysctl_net_busy_read.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Tue, 23 Aug 2022 17:46:52 +0000 (10:46 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 5 Sep 2022 08:25:04 +0000 (10:25 +0200)
commit663e2f3b07fa94aa49f925dac77ff2e8b2d71d33
tree0d030d016db5f7040375390f0a9769997e921110tree | snapshot (tar.gz zip)
parent7160a9e0fd25d6db6fd0678397846216869743e4commit | diff
net: Fix a data-race around sysctl_net_busy_read.

[ Upstream commit e59ef36f0795696ab229569c153936bfd068d21c ]

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

Fixes: 2d48d67fa8cd ("net: poll/select low latency socket support")
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/core/sock.c diff | blob | blame | history