---

yaml --- r: 47523 b: refs/heads/master c: d8adb9c h: refs/heads/master i: 47521: de029bf 47519: 14dbc67 v: v3
git-mirror · Feb 11, 2007 · a1fc444 · a1fc444
1 parent 1002f16
commit a1fc444
Show file tree

Hide file tree

Showing 2 changed files with 9 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 23c887522e912ca494950796a95df8dd210f4b01
+refs/heads/master: d8adb9cef7e406a9a82881695097c702bc98422f
diff --git a/trunk/fs/ext2/dir.c b/trunk/fs/ext2/dir.c
@@ -368,6 +368,14 @@ struct ext2_dir_entry_2 * ext2_find_entry (struct inode * dir,
 		}
 		if (++n >= npages)
 			n = 0;
+		/* next page is past the blocks we've got */
+		if (unlikely(n > (dir->i_blocks >> (PAGE_CACHE_SHIFT - 9)))) {
+			ext2_error(dir->i_sb, __FUNCTION__,
+				"dir %lu size %lld exceeds block count %llu",
+				dir->i_ino, dir->i_size,
+				(unsigned long long)dir->i_blocks);
+			goto out;
+		}
 	} while (n != start);
 out:
 	return NULL;