diff options
Diffstat (limited to 'fs/ext4/extents.c')
| -rw-r--r-- | fs/ext4/extents.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 63c702b4b24c..106a5bb3ae68 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -881,6 +881,12 @@ ext4_find_extent(struct inode *inode, ext4_lblk_t block, eh = ext_inode_hdr(inode); depth = ext_depth(inode); + if (depth < 0 || depth > EXT4_MAX_EXTENT_DEPTH) { + EXT4_ERROR_INODE(inode, "inode has invalid extent depth: %d", + depth); + ret = -EFSCORRUPTED; + goto err; + } if (path) { ext4_ext_drop_refs(path); |