tcp: Fix data-races around some timeout sysctl knobs.

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2149949


Upstream Status: linux.git

commit 39e24435
Author: Kuniyuki Iwashima <kuniyu@amazon.com>
Date:   Fri Jul 15 10:17:50 2022 -0700

    tcp: Fix data-races around some timeout sysctl knobs.

    While reading these sysctl knobs, they can be changed concurrently.
    Thus, we need to add READ_ONCE() to their readers.

      - tcp_retries1
      - tcp_retries2
      - tcp_orphan_retries
      - tcp_fin_timeout

    Fixes: 1da177e4 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Guillaume Nault <gnault@redhat.com>