Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.18 111/181] io_uring: fix wrong arm_poll error handling | Date | Mon, 27 Jun 2022 13:21:24 +0200 |
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From: Pavel Begunkov <asml.silence@gmail.com>
[ Upstream commit 9d2ad2947a53abf5e5e6527a9eeed50a3a4cbc72 ]
Leaving ip.error set when a request was punted to task_work execution is problematic, don't forget to clear it.
Fixes: aa43477b04025 ("io_uring: poll rework") Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/a6c84ef4182c6962380aebe11b35bdcb25b0ccfb.1655852245.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org> --- fs/io_uring.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/fs/io_uring.c b/fs/io_uring.c index 38ecea726254..e4186635aaa8 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -6178,6 +6178,7 @@ static int __io_arm_poll_handler(struct io_kiocb *req, if (unlikely(ipt->error || !ipt->nr_entries)) { poll->events |= EPOLLONESHOT; req->apoll_events |= EPOLLONESHOT; + ipt->error = 0; } __io_poll_execute(req, mask, poll->events); return 0; -- 2.35.1
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