www.infradead.org Git - users/dwmw2/linux.git/commit

author	Kuniyuki Iwashima <kuniyu@amazon.com>
	Fri, 15 Jul 2022 17:17:55 +0000 (10:17 -0700)
committer	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
	Fri, 29 Jul 2022 15:19:18 +0000 (17:19 +0200)
commit	0dc2f19d8c2636cebda7976b5ea40c6d69f0d891
tree	eb155a9e7a298112742cdbf72414491edec5e1c9	tree
parent	22938534c611136f35e2ca545bb668073ca5ef49	commit \| diff

tcp: Fix data-races around sysctl_tcp_fastopen_blackhole_timeout.

[ Upstream commit 021266ec640c7a4527e6cd4b7349a512b351de1d ]

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

Fixes: cf1ef3f0719b ("net/tcp_fastopen: Disable active side TFO in certain scenarios")
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>