tcp: Fix data-races around some timeout sysctl knobs.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Fri, 15 Jul 2022 17:17:50 +0000 (10:17 -0700)
committerDavid S. Miller <davem@davemloft.net>
Mon, 18 Jul 2022 11:21:54 +0000 (12:21 +0100)
commit39e24435a776e9de5c6dd188836cf2523547804b
treece395ff289b73323451466c54d20b0c8bf4668f0
parent46778cd16e6a5ad1b2e3a91f6c057c907379418e
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: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/net/tcp.h
net/ipv4/tcp.c
net/ipv4/tcp_output.c
net/ipv4/tcp_timer.c