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(parent: f490528) | 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 15:14:11 +0000 (17:14 +0200)
commit344931e37ac2774a7051cb57a66073124c129688
tree2f57779700490f0b269f13303756d835295af4d3tree | snapshot
parentf4905281d6adae08093e311446a4dfee3e2c4aa2commit | diff
tcp: Fix data-races around sysctl_tcp_mtu_probing.

[ Upstream commit b2b8ddceda6a3584dbb3cd20669f9dccb7f4dc51 ]

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

Fixes: 5eb6c2893ed1 ("[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
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