summaryrefslogtreecommitdiffstats
path: root/init
diff options
context:
space:
mode:
authorPavel Begunkov <asml.silence@gmail.com>2021-01-11 05:00:30 +0100
committerJens Axboe <axboe@kernel.dk>2021-01-11 15:39:54 +0100
commitd434ab6db524ab1efd0afad4ffa1ee65ca6ac097 (patch)
tree71234160cb83e0ba6b7ee49e36ae2cf32b3b903b /init
parentio_uring: stop SQPOLL submit on creator's death (diff)
downloadlinux-d434ab6db524ab1efd0afad4ffa1ee65ca6ac097.tar.xz
linux-d434ab6db524ab1efd0afad4ffa1ee65ca6ac097.zip
io_uring: drop mm and files after task_work_run
__io_req_task_submit() run by task_work can set mm and files, but io_sq_thread() in some cases, and because __io_sq_thread_acquire_mm() and __io_sq_thread_acquire_files() do a simple current->mm/files check it may end up submitting IO with mm/files of another task. We also need to drop it after in the end to drop potentially grabbed references to them. Cc: stable@vger.kernel.org # 5.9+ Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'init')
0 files changed, 0 insertions, 0 deletions