diff options
| author | Paul Mackerras <paulus@samba.org> | 2009-04-22 13:02:09 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2009-04-22 13:02:09 +1000 |
| commit | 5bd3ef84d73c2ea7b4babbad060909753c4828d4 (patch) | |
| tree | fdf2bafb48ae1ed03175f6c77a7548a181e69ee9 /fs/ext4/super.c | |
| parent | 0658c16056660886ea2f35c4f038be70a94b1532 (diff) | |
| parent | 6d25b688ecc488753af3c9e6f6a9a575b863cf37 (diff) | |
Merge branch 'merge' of git://git.secretlab.ca/git/linux-2.6 into merge
Diffstat (limited to 'fs/ext4/super.c')
| -rw-r--r-- | fs/ext4/super.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 9987bba99db3..2958f4e6f222 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -2508,6 +2508,15 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) if (EXT4_BLOCKS_PER_GROUP(sb) == 0) goto cantfind_ext4; + /* check blocks count against device size */ + blocks_count = sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits; + if (blocks_count && ext4_blocks_count(es) > blocks_count) { + printk(KERN_WARNING "EXT4-fs: bad geometry: block count %llu " + "exceeds size of device (%llu blocks)\n", + ext4_blocks_count(es), blocks_count); + goto failed_mount; + } + /* * It makes no sense for the first data block to be beyond the end * of the filesystem. |