diff options
| author | Jens Axboe <axboe@kernel.dk> | 2023-10-21 12:30:29 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-10-25 07:44:14 -0600 |
| commit | 7644b1a1c9a7ae8ab99175989bfc8676055edb46 (patch) | |
| tree | dfa13e49521a00400a40c955f9f927a2e41c9af4 /fs | |
| parent | 8b51a3956d44ea6ade962874ade14de9a7d16556 (diff) | |
io_uring/fdinfo: lock SQ thread while retrieving thread cpu/pid
We could race with SQ thread exit, and if we do, we'll hit a NULL pointer
dereference when the thread is cleared. Grab the SQPOLL data lock before
attempting to get the task cpu and pid for fdinfo, this ensures we have a
stable view of it.
Cc: stable@vger.kernel.org
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218032
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions