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(parent: 9ba9cd4) | patch
tcp: Fix data-races around sysctl_tcp_mtu_probing.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Wed, 13 Jul 2022 20:52:00 +0000 (13:52 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 29 Jul 2022 15:25:14 +0000 (17:25 +0200)
commitaabe9438fdfe004e021d5a206227ec105dbe2416
treee074eecfbc66734e81a9a4bfdcc8d75ded3a2857tree | snapshot
parent9ba9cd43b5776c27d25e5a32dde9e80bdeb1c6a1commit | diff
tcp: Fix data-races around sysctl_tcp_mtu_probing.

[ Upstream commit f47d00e077e7d61baf69e46dde3210c886360207 ]

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

Fixes: 5d424d5a674f ("[TCP]: MTU probing")
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_output.c diff | blob | history
net/ipv4/tcp_timer.c diff | blob | history
Domain: System / Kernel;