tcp: Fix a data-race around sysctl_tcp_rfc1337.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Mon, 18 Jul 2022 17:26:51 +0000 (10:26 -0700)
committerDavid S. Miller <davem@davemloft.net>
Wed, 20 Jul 2022 09:14:50 +0000 (10:14 +0100)
commit0b484c91911e758e53656d570de58c2ed81ec6f2
tree8a57d2c8c5857879835a9c86be6ee1b191600d4e
parent4e08ed41cb1194009fc1a916a59ce3ed4afd77cd
tcp: Fix a data-race around sysctl_tcp_rfc1337.

While reading sysctl_tcp_rfc1337, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/tcp_minisocks.c