git.ipfire.org Git - thirdparty/kernel/stable.git/commit

author	Kuniyuki Iwashima <kuniyu@amazon.com>
	Fri, 22 Jul 2022 18:22:04 +0000 (11:22 -0700)
committer	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
	Wed, 3 Aug 2022 10:05:26 +0000 (12:05 +0200)
commit	72e2655099319adbd67ff0bdffae7e5adfcb204f
tree	8e01ef43b637827970b2e7a1addaf1fb5440ae63	tree \| snapshot
parent	68ee3ded64e5f251e70534b9873964852ccb64e5	commit \| diff

tcp: Fix data-races around sysctl_tcp_reflect_tos.

[ Upstream commit 870e3a634b6a6cb1543b359007aca73fe6a03ac5 ]

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

Fixes: ac8f1710c12b ("tcp: reflect tos value received in SYN to the socket")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Acked-by: Wei Wang <weiwan@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

net/ipv4/tcp_ipv4.c		diff \| blob \| blame \| history
net/ipv6/tcp_ipv6.c		diff \| blob \| blame \| history