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| author | Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> | 2021-12-18 18:41:56 +0900 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-12-21 09:32:57 -0700 |
| commit | 37ae5a0f5287a52cf51242e76ccf198d02ffe495 (patch) | |
| tree | 9405a91bd2f5e8749d569e50b5460789618a2147 /include/linux/blkdev.h | |
| parent | 99d8690aae4b2f0d1d90075de355ac087f820a66 (diff) | |
| download | lwn-37ae5a0f5287a52cf51242e76ccf198d02ffe495.tar.gz lwn-37ae5a0f5287a52cf51242e76ccf198d02ffe495.zip | |
block: use "unsigned long" for blk_validate_block_size().
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>
Diffstat (limited to 'include/linux/blkdev.h')
| -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 c80cfaefc0a8..bb5fb7282e6e 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -45,7 +45,7 @@ struct blk_crypto_profile; */ #define BLKCG_MAX_POLS 6 -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; |