diff options
| author | Ming Lei <[email protected]> | 2024-08-30 11:41:45 +0800 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2024-08-30 14:46:59 -0600 |
| commit | c9ea57c91f03bcad415e1a20113bdb2077bcf990 (patch) | |
| tree | 5865f68b6cbf4a769432fbcda17dde2fd229ece2 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | 12c612e115f3f021e72025447233ca89c94fb751 (diff) | |
nbd: fix race between timeout and normal completion
If request timetout is handled by nbd_requeue_cmd(), normal completion
has to be stopped for avoiding to complete this requeued request, other
use-after-free can be triggered.
Fix the race by clearing NBD_CMD_INFLIGHT in nbd_requeue_cmd(), meantime
make sure that cmd->lock is grabbed for clearing the flag and the
requeue.
Cc: Josef Bacik <[email protected]>
Cc: Yu Kuai <[email protected]>
Fixes: 2895f1831e91 ("nbd: don't clear 'NBD_CMD_INFLIGHT' flag if request is not completed")
Signed-off-by: Ming Lei <[email protected]>
Reviewed-by: Yu Kuai <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions