X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=fs%2Fisofs%2Fnamei.c;h=8299889a835ea5c9b95c7d71afcabdb4610310c1;hb=b6645c35843b9608bed8c2981fc53b942758853f;hp=e2b4dad39ca9d34641846284f43e51dc2715a095;hpb=0b776eb5426752d4e53354ac89e3710d857e09a7;p=linux-2.6-omap-h63xx.git

diff --git a/fs/isofs/namei.c b/fs/isofs/namei.c
index e2b4dad39ca..8299889a835 100644
--- a/fs/isofs/namei.c
+++ b/fs/isofs/namei.c
@@ -111,6 +111,13 @@ isofs_find_entry(struct inode *dir, struct dentry *dentry,
 
 		dlen = de->name_len[0];
 		dpnt = de->name;
+		/* Basic sanity check, whether name doesn't exceed dir entry */
+		if (de_len < dlen + sizeof(struct iso_directory_record)) {
+			printk(KERN_NOTICE "iso9660: Corrupted directory entry"
+			       " in block %lu of inode %lu\n", block,
+			       dir->i_ino);
+			return 0;
+		}
 
 		if (sbi->s_rock &&
 		    ((i = get_rock_ridge_filename(de, tmpname, dir)))) {
@@ -179,9 +186,9 @@ struct dentry *isofs_lookup(struct inode *dir, struct dentry *dentry, struct nam
 	inode = NULL;
 	if (found) {
 		inode = isofs_iget(dir->i_sb, block, offset);
-		if (!inode) {
+		if (IS_ERR(inode)) {
 			unlock_kernel();
-			return ERR_PTR(-EACCES);
+			return ERR_CAST(inode);
 		}
 	}
 	unlock_kernel();