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(parent: 8db0704) | patch
net: Fix a data-race around sysctl_net_busy_poll.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Tue, 23 Aug 2022 17:46:51 +0000 (10:46 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 31 Aug 2022 15:15:20 +0000 (17:15 +0200)
commit2c7dae6c45112ee7ead62155fed375cb2e7d7cf8
treee558caac45395cd6fb490249dcee5e503b0ce132tree | snapshot
parent8db070463e3ebedf81dfcc1d8bc51f46e751872fcommit | diff
net: Fix a data-race around sysctl_net_busy_poll.

[ Upstream commit c42b7cddea47503411bfb5f2f93a4154aaffa2d9 ]

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

Fixes: 060212928670 ("net: add low latency socket poll")
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>
include/net/busy_poll.h diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git