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(parent: bd56ba7) | patch
tcp: Fix a data-race around sysctl_tcp_comp_sack_delay_ns.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Fri, 22 Jul 2022 18:22:01 +0000 (11:22 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 3 Aug 2022 09:59:40 +0000 (11:59 +0200)
commitf509210dfb0947cd26e218e207f211bbaaa53928
tree53e30d001d38e95f2871752088766c05a33adda1tree | snapshot
parentbd56ba7d7cf84aeff4c3aabf513afb2f07fda016commit | diff
tcp: Fix a data-race around sysctl_tcp_comp_sack_delay_ns.

[ Upstream commit c292d7fcda517fb1f0113466915ccd9b972c2250 ]

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

Fixes: 7364cd7c5be7 ("tcp: add tcp_comp_sack_delay_ns sysctl")
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/ipv4/tcp_input.c diff | blob | history
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