io_uring: ensure ->list is initialized for poll commands
commit 36703247 upstream. Daniel reports that when testing an http server that uses io_uring to poll for incoming connections, sometimes it hard crashes. This is due to an uninitialized list member for the io_uring request. Normally this doesn't trigger and none of the test cases caught it. Reported-by: Daniel Kozak <kozzi11@gmail.com> Tested-by: Daniel Kozak <kozzi11@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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91b4f2b6
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