From 33663c724656d32b9381705a6c8d773e92dc4697 Mon Sep 17 00:00:00 2001
From: Xin LI <delphij@FreeBSD.org>
Date: Tue, 26 Feb 2008 03:05:48 +0000
Subject: [PATCH] In pass2check(): Be more strict with the inode information
 before further processing the information.  chk1 is more prone to crash when
 insane information is provided by the on-disk inode, and does not even work
 if the inode is being smarshed badly.

---
 sbin/fsck_ffs/pass2.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sbin/fsck_ffs/pass2.c b/sbin/fsck_ffs/pass2.c
index c4fdd2a8a578..59a7a84c7d94 100644
--- a/sbin/fsck_ffs/pass2.c
+++ b/sbin/fsck_ffs/pass2.c
@@ -242,6 +242,8 @@ pass2check(struct inodesc *idesc)
 	/*
 	 * check for "."
 	 */
+	if (dirp->d_ino > maxino)
+		goto chk2;
 	if (idesc->id_entryno != 0)
 		goto chk1;
 	if (dirp->d_ino != 0 && strcmp(dirp->d_name, ".") == 0) {