diff options
| author | Kuniyuki Iwashima <kuniyu@amazon.com> | 2022-07-15 10:17:49 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-07-18 12:21:54 +0100 |
| commit | 46778cd16e6a5ad1b2e3a91f6c057c907379418e (patch) | |
| tree | e2e396c1da88da8fad7300c3615aee565d6b8a26 /net/ipv4/tcp.c | |
| parent | 4177f545895b1da08447a80692f30617154efa6e (diff) | |
| download | linux-46778cd16e6a5ad1b2e3a91f6c057c907379418e.tar.bz2 | |
tcp: Fix data-races around sysctl_tcp_reordering.
While reading sysctl_tcp_reordering, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its readers.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp.c')
| -rw-r--r-- | net/ipv4/tcp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 19ce08c9fbdc..b3632fa5df07 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -441,7 +441,7 @@ void tcp_init_sock(struct sock *sk) tp->snd_cwnd_clamp = ~0; tp->mss_cache = TCP_MSS_DEFAULT; - tp->reordering = sock_net(sk)->ipv4.sysctl_tcp_reordering; + tp->reordering = READ_ONCE(sock_net(sk)->ipv4.sysctl_tcp_reordering); tcp_assign_congestion_control(sk); tp->tsoffset = 0; |