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-rw-r--r--fs/omfs/inode.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/omfs/inode.c b/fs/omfs/inode.c
index bd4bf753a63b..0af5d0af9f32 100644
--- a/fs/omfs/inode.c
+++ b/fs/omfs/inode.c
@@ -509,6 +509,15 @@ static int omfs_fill_super(struct super_block *sb, void *data, int silent)
goto out_brelse_bh2;
}
+ if (sbi->s_bitmap_ino != ~0ULL &&
+ sbi->s_bitmap_ino > sbi->s_num_blocks) {
+ printk(KERN_ERR "omfs: free space bitmap location is corrupt "
+ "(%llx, total blocks %llx)\n",
+ (unsigned long long) sbi->s_bitmap_ino,
+ (unsigned long long) sbi->s_num_blocks);
+ goto out_brelse_bh2;
+ }
+
ret = omfs_get_imap(sb);
if (ret)
goto out_brelse_bh2;