af_unix: Annotate data-races around sk->sk_state in UNIX_DIAG.

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While dumping AF_UNIX sockets via UNIX_DIAG, sk->sk_state is read
locklessly.

Let's use READ_ONCE() there.

Note that the result could be inconsistent if the socket is dumped
during the state change.  This is common for other SOCK_DIAG and
similar interfaces.

Fixes: c9da99e647 ("unix_diag: Fixup RQLEN extension report")
Fixes: 2aac7a2cb0 ("unix_diag: Pending connections IDs NLA")
Fixes: 45a96b9be6 ("unix_diag: Dumping all sockets core")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

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Kuniyuki Iwashima 2024-06-04 09:52:35 -07:00 • committed by Paolo Abeni

parent af4c733b6b

commit 0aa3be7b3e

1 changed files with 4 additions and 4 deletions

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net/unix/diag.c

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