From: Christian Gmeiner <christian.gmeiner@gmail.com>
Date: Sat, 22 Dec 2018 09:55:48 +0000 (-0800)
Subject: fs: cbfs: remove wrong header validation
X-Git-Url: http://git.dujemihanovic.xyz/img/sics.gif?a=commitdiff_plain;h=9914c73261b198bf26df70cce8aa098f204cd763;p=u-boot.git

fs: cbfs: remove wrong header validation

cbfs_fileheader.len indicates the content size of the file in the
cbfs, and it has nothing to do with cbfs_fileheader.offset which
is the starting address of the file in the cbfs.

Remove such check in file_cbfs_next_file(). Before this change
'cbfsinit' failed with 'Bad CBFS file'. After this change all cbfs
commands are working as expected.

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
[bmeng: keep the necessary header sanity check]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---

diff --git a/fs/cbfs/cbfs.c b/fs/cbfs/cbfs.c
index 0dce639b49..e943325297 100644
--- a/fs/cbfs/cbfs.c
+++ b/fs/cbfs/cbfs.c
@@ -96,8 +96,7 @@ static int file_cbfs_next_file(u8 *start, u32 size, u32 align,
 		}
 
 		swap_file_header(&header, fileHeader);
-		if (header.offset < sizeof(struct cbfs_fileheader) ||
-		    header.offset > header.len) {
+		if (header.offset < sizeof(struct cbfs_fileheader)) {
 			file_cbfs_result = CBFS_BAD_FILE;
 			return -1;
 		}