io_uring: verify resv is 0 in ringfd register/unregister

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Only allow resv field to be 0 in struct io_uring_rsrc_update user
arguments.

Fixes: e7a6c00dc7 ("io_uring: add support for registering ring file descriptors")
Signed-off-by: Dylan Yudaken <dylany@fb.com>
Link: https://lore.kernel.org/r/20220412163042.2788062-4-dylany@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Dylan Yudaken 2022-04-12 09:30:41 -07:00 • committed by Jens Axboe

parent d8a3ba9c14

commit 6fb53cf8ff

1 changed files with 6 additions and 1 deletions

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fs/io_uring.c

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