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io_uring: fix task leak issue in io_wq_create()

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commit 89465d923b upstream.

Add missing put_task_struct() in the error path

Cc: stable@vger.kernel.org
Fixes: 0f8baa3c98 ("io-wq: fully initialize wqe before calling cpuhp_state_add_instance_nocalls()")
Signed-off-by: Penglei Jiang <superman.xpt@gmail.com>
Link: https://lore.kernel.org/r/20250615163906.2367-1-superman.xpt@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Penglei Jiang 2025-06-15 09:39:06 -07:00 committed by Greg Kroah-Hartman
parent 2e10dc9c2a
commit 1a4254ab06
1 changed files with 3 additions and 1 deletions
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4
io_uring/io-wq.c
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@ -1204,8 +1204,10 @@ struct io_wq *io_wq_create(unsigned bounded, struct io_wq_data *data)
atomic_set(&wq->worker_refs, 1);
init_completion(&wq->worker_done);
ret = cpuhp_state_add_instance_nocalls(io_wq_online, &wq->cpuhp_node);
if (ret)
if (ret) {
put_task_struct(wq->task);
goto err;
}
return wq;
err: