diff options
| author | Eric Dumazet <edumazet@google.com> | 2019-11-05 23:11:54 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-11-07 01:14:48 +0100 |
| commit | 099ecf59f05b5f30f42ebac0ab8cb94f9b18c90c (patch) | |
| tree | 06d62b7b24635bbb78ad38f24933cad260b5c346 /net/sctp/diag.c | |
| parent | net: annotate lockless accesses to sk->sk_ack_backlog (diff) | |
| download | linux-099ecf59f05b5f30f42ebac0ab8cb94f9b18c90c.tar.xz linux-099ecf59f05b5f30f42ebac0ab8cb94f9b18c90c.zip | |
net: annotate lockless accesses to sk->sk_max_ack_backlog
sk->sk_max_ack_backlog can be read without any lock being held
at least in TCP/DCCP cases.
We need to use READ_ONCE()/WRITE_ONCE() to avoid load/store tearing
and/or potential KCSAN warnings.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp/diag.c')
| -rw-r--r-- | net/sctp/diag.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sctp/diag.c b/net/sctp/diag.c index f873f15407de..8a15146faaeb 100644 --- a/net/sctp/diag.c +++ b/net/sctp/diag.c @@ -426,7 +426,7 @@ static void sctp_diag_get_info(struct sock *sk, struct inet_diag_msg *r, r->idiag_wqueue = infox->asoc->sndbuf_used; } else { r->idiag_rqueue = READ_ONCE(sk->sk_ack_backlog); - r->idiag_wqueue = sk->sk_max_ack_backlog; + r->idiag_wqueue = READ_ONCE(sk->sk_max_ack_backlog); } if (infox->sctpinfo) sctp_get_sctp_info(sk, infox->asoc, infox->sctpinfo); |