6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Penglei Jiang superman.xpt@gmail.com
commit 89465d923bda180299e69ee2800aab84ad0ba689 upstream.
Add missing put_task_struct() in the error path
Cc: stable@vger.kernel.org Fixes: 0f8baa3c9802 ("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 --- io_uring/io-wq.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- a/io_uring/io-wq.c +++ b/io_uring/io-wq.c @@ -1206,8 +1206,10 @@ struct io_wq *io_wq_create(unsigned boun 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: