linux-ext4 - [PATCH 3/7] libext2fs: wrong loop will cause dir entry is not found in dirsearch command

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 15 Nov 2012 16:13:25 +0800
From:	Zheng Liu <gnehzuil.liu@...il.com>
To:	linux-ext4@...r.kernel.org, tytso@....edu
Cc:	Zheng Liu <wenqing.lz@...bao.com>
Subject: [PATCH 3/7] libext2fs: wrong loop will cause dir entry is not found in dirsearch command

From: Zheng Liu <wenqing.lz@...bao.com>

It needs to iterate dir entry until offset is greater than or equal to size of
inline data.  But currently it is only iterate until offset >= len (length of
name).

Signed-off-by: Zheng Liu <wenqing.lz@...bao.com>
---
 lib/ext2fs/inline_data.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/ext2fs/inline_data.c b/lib/ext2fs/inline_data.c
index f0473fd..7f5ec3e 100644
--- a/lib/ext2fs/inline_data.c
+++ b/lib/ext2fs/inline_data.c
@@ -129,7 +129,7 @@ static int do_search_dir(ext2_filsys fs, void *start, int size,
 	unsigned rec_len;
 	errcode_t errcode;
 
-	while (offset < len) {
+	while (offset < size) {
 		de = (struct ext2_dir_entry *)(start + offset);
 		errcode = ext2fs_get_rec_len(fs, de, &rec_len);
 		if (errcode) {
-- 
1.7.12.rc2.18.g61b472e

--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html