grub2/0059-grub-core-fs-ufs.c-grub_ufs_dir-Stop-if-direntlen-is.patch

From 64ab320166410339edd8ae49b19780f1a793f450 Mon Sep 17 00:00:00 2001
From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
Date: Mon, 10 Dec 2012 09:22:40 +0100
Subject: [PATCH 059/482] 	* grub-core/fs/ufs.c (grub_ufs_dir): Stop if
 direntlen is 0 to avoid 	infinite loop on corrupted FS.

---
 ChangeLog          | 5 +++++
 grub-core/fs/ufs.c | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 9c6dde5..0b1596a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2012-12-10  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* grub-core/fs/ufs.c (grub_ufs_dir): Stop if direntlen is 0 to avoid
+	infinite loop on corrupted FS.
+
 2012-12-08  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	Fix big-endian mtime.
diff --git a/grub-core/fs/ufs.c b/grub-core/fs/ufs.c
index c862336..74a4a40 100644
--- a/grub-core/fs/ufs.c
+++ b/grub-core/fs/ufs.c
@@ -664,6 +664,9 @@ grub_ufs_dir (grub_device_t device, const char *path,
 			      (char *) &dirent) < 0)
 	break;
 
+      if (dirent.direntlen == 0)
+	break;
+
 #ifdef MODE_UFS2
       namelen = dirent.namelen_bsd;
 #else
-- 
1.8.2.1