From: Pavel Begunkov <asml.silence@gmail.com> mainline inclusion from mainline-5.8-rc7 commit 3e863ea3bb1a2203ae648eb272db0ce6a1a2072c category: feature bugzilla: https://bugzilla.openeuler.org/show_bug.cgi?id=27 CVE: NA --------------------------- IOSQE_ASYNC branch of io_queue_sqe() is another place where an unitialised req->work can be accessed (i.e. prior io_req_init_async()). Nothing really bad though, it just looses IO_WQ_WORK_CONCURRENT flag. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: yangerkun <yangerkun@huawei.com> Reviewed-by: zhangyi (F) <yi.zhang@huawei.com> Signed-off-by: Cheng Jian <cj.chengjian@huawei.com> --- fs/io_uring.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/io_uring.c b/fs/io_uring.c index 3c86c4acbf86..ef4bde014013 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -5685,6 +5685,7 @@ static void io_queue_sqe(struct io_kiocb *req, const struct io_uring_sqe *sqe) * Never try inline submit of IOSQE_ASYNC is set, go straight * to async execution. */ + io_req_init_async(req); req->work.flags |= IO_WQ_WORK_CONCURRENT; io_queue_async_work(req); } else { -- 2.25.1