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(parent: e47ee7a) | patch
tcp: Fix a data-race around sysctl_tcp_probe_interval.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Wed, 13 Jul 2022 20:52:05 +0000 (13:52 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 29 Jul 2022 15:25:14 +0000 (17:25 +0200)
commit3a344fe0b4a851f2c80ac68712b1d777c47d4db6
treee06a8fcbcaa5340e418263ed188d401f75b51c8btree | snapshot
parente47ee7a808aab08b9510d8191549fff86d43b25acommit | diff
tcp: Fix a data-race around sysctl_tcp_probe_interval.

[ Upstream commit 2c8b8d63cc69c27d668fbd85ab3d8bd92082b49a ]

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

Fixes: 35dc52cc3fd5 ("ipv4: Create probe timer for tcp PMTU as per RFC4821")
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
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