Kuniyuki Iwashima 2b4b373271 tcp: Fix data-races around sysctl_tcp_no_ssthresh_metrics_save. ...

commit ab1ba21b523ab496b1a4a8e396333b24b0a18f9a upstream.

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

Fixes: 65e6d90168 ("net-tcp: Disable TCP ssthresh metrics cache by default")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2022-08-03 12:00:45 +02:00

27 KiB

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