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| author | Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> | 2021-12-18 12:41:56 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-09-04 14:13:04 +0300 |
| commit | ee12aa483f6c8cecbd5a4c794867fee0e068b822 (patch) | |
| tree | 9c7fc57af9379ea51bc1ad3df37f76b3adbca4ee | |
| parent | 3d89d0c4a1c6d4d2a755e826351b0a101dbc86f3 (diff) | |
| download | linux-ee12aa483f6c8cecbd5a4c794867fee0e068b822.tar.xz | |
block: use "unsigned long" for blk_validate_block_size().
commit 37ae5a0f5287a52cf51242e76ccf198d02ffe495 upstream.
Since lo_simple_ioctl(LOOP_SET_BLOCK_SIZE) and ioctl(NBD_SET_BLKSIZE) pass
user-controlled "unsigned long arg" to blk_validate_block_size(),
"unsigned long" should be used for validation.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/9ecbf057-4375-c2db-ab53-e4cc0dff953d@i-love.sakura.ne.jp
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: David Hunter <david.hunter.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | include/linux/blkdev.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 8f0aafae09d9..d76682d2f9dc 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -56,7 +56,7 @@ struct blk_stat_callback; */ #define BLKCG_MAX_POLS 5 -static inline int blk_validate_block_size(unsigned int bsize) +static inline int blk_validate_block_size(unsigned long bsize) { if (bsize < 512 || bsize > PAGE_SIZE || !is_power_of_2(bsize)) return -EINVAL; |