| commit | 1ecd3c7ea76488c63b4b0a2561fd7eaf96cc8028 | |
| author | Xi Wang <xi.wang@gmail.com> | |
| Thu, 9 Feb 2012 01:13:37 +0000 (8 17:13 -0800) | ||
| committer | Linus Torvalds <torvalds@linux-foundation.org> | |
| Thu, 9 Feb 2012 03:03:51 +0000 (8 19:03 -0800) | ||
| tree | 3bc88fd0b4fd61c86141c66e86cf5492753bcd22 | treesnapshot (tar.gz zip) |
| parent | 98e96852480566333f6dacd3223f0be15df34d60 | commitdiff |
nilfs2: avoid overflowing segment numbers in nilfs_ioctl_clean_segments()
nsegs is read from userspace. Limit its value and avoid overflowing nsegs
* sizeof(__u64) in the subsequent call to memdup_user().
This patch complements 481fe17e973fb9 ("nilfs2: potential integer overflow
in nilfs_ioctl_clean_segments()").
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Cc: Haogang Chen <haogangchen@gmail.com>
Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
nsegs is read from userspace. Limit its value and avoid overflowing nsegs
* sizeof(__u64) in the subsequent call to memdup_user().
This patch complements 481fe17e973fb9 ("nilfs2: potential integer overflow
in nilfs_ioctl_clean_segments()").
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Cc: Haogang Chen <haogangchen@gmail.com>
Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| fs/nilfs2/ioctl.c | diffblobblamehistory |