1 files changed, 13 insertions, 2 deletions

diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index d9176dba3698..2aa7101b27cd 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -1000,7 +1000,12 @@ static struct dentry *ext3_lookup(struct inode * dir, struct dentry *dentry, str
         if (bh) {
                 unsigned long ino = le32_to_cpu(de->inode);
                 brelse (bh);
-                inode = iget(dir->i_sb, ino);
+                if (!ext3_valid_inum(dir->i_sb, ino)) {
+                        ext3_error(dir->i_sb, "ext3_lookup",
+                                   "bad inode number: %lu", ino);
+                        inode = NULL;
+                } else
+                        inode = iget(dir->i_sb, ino);
 
                 if (!inode)
                         return ERR_PTR(-EACCES);
@@ -1028,7 +1033,13 @@ struct dentry *ext3_get_parent(struct dentry *child)
                 return ERR_PTR(-ENOENT);
         ino = le32_to_cpu(de->inode);
         brelse(bh);
-        inode = iget(child->d_inode->i_sb, ino);
+
+        if (!ext3_valid_inum(child->d_inode->i_sb, ino)) {
+                ext3_error(child->d_inode->i_sb, "ext3_get_parent",
+                           "bad inode number: %lu", ino);
+                inode = NULL;
+        } else
+                inode = iget(child->d_inode->i_sb, ino);
 
         if (!inode)
                 return ERR_PTR(-EACCES);