f2fs: add a max block check for get_data_block_bmap

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This patch adds a max block check for get_data_block_bmap.

Trinity test program will send a block number as parameter into
ioctl_fibmap, which will be used in get_node_path(), when the block
number large than f2fs max blocks, it will trigger kernel bug.

Signed-off-by: Yunlei He <heyunlei@huawei.com>
Signed-off-by: Xue Liu <liuxueliu.liu@huawei.com>
[Jaegeuk Kim: fix missing condition, pointed by Chao Yu]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

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Yunlei He 2015-12-28 21:48:32 +08:00 • committed by Jaegeuk Kim

parent 9a950d52b7

commit 179448bfe4

3 changed files with 6 additions and 1 deletions

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4

fs/f2fs/data.c

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1

fs/f2fs/f2fs.h

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2

fs/f2fs/super.c

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