io_uring: fix removing the wrong file in __io_sqe_files_update()

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Index here is already the position of the file in fixed_file_table, we
should not use io_file_from_index() again to get it. Otherwise, the
wrong file which still in use may be released unexpectedly.

Cc: stable@vger.kernel.org # v5.6
Fixes: 05f3fb3c53 ("io_uring: avoid ring quiesce for fixed file set unregister and update")
Signed-off-by: Jiufei Xue <jiufei.xue@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Jiufei Xue 2020-09-01 13:35:02 +08:00 • committed by Jens Axboe

parent fdee946d09

commit 98dfd5024a

1 changed files with 1 additions and 1 deletions

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fs/io_uring.c

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