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authorPenglei Jiang <superman.xpt@gmail.com>2025-06-15 09:39:06 -0700
committerJens Axboe <axboe@kernel.dk>2025-06-15 12:58:39 -0600
commit89465d923bda180299e69ee2800aab84ad0ba689 (patch)
treeffcf14d8cd6ae7c288726e17418b83febd2c9007
parent1d27f11bf02b38c431e49a17dee5c10a2b4c2e28 (diff)
io_uring: fix task leak issue in io_wq_create()
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>
-rw-r--r--io_uring/io-wq.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/io_uring/io-wq.c b/io_uring/io-wq.c
index cd1fcb115739..be91edf34f01 100644
--- a/io_uring/io-wq.c
+++ b/io_uring/io-wq.c
@@ -1259,8 +1259,10 @@ 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: