diff options
| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2009-03-27 16:39:58 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2009-03-27 16:39:58 -0400 |
| commit | 7a262f7c69163cd4811f2f838faef5c5b18439c9 (patch) | |
| tree | 1d048ed0fa78d8d768c149cf414bd4325315f184 /fs/ext4/inode.c | |
| parent | 56b19868aca856a7d7bf20c3a7a1030e4fd75b2b (diff) | |
ext4: Validate extent details only when read from the disk
Make sure we validate extent details only when read from the disk.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Thiemo Nagel <thiemo.nagel@ph.tum.de>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/inode.c')
| -rw-r--r-- | fs/ext4/inode.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 25811507d2b0..cd0399db0ef1 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4345,6 +4345,16 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino) (__u64)(le32_to_cpu(raw_inode->i_version_hi)) << 32; } + if (ei->i_flags & EXT4_EXTENTS_FL) { + /* Validate extent which is part of inode */ + ret = ext4_ext_check_inode(inode); + if (ret) { + brelse(bh); + goto bad_inode; + } + + } + if (S_ISREG(inode->i_mode)) { inode->i_op = &ext4_file_inode_operations; inode->i_fop = &ext4_file_operations; |