From: Pali Rohár <pali@kernel.org>
Date: Sun, 18 Sep 2022 16:39:18 +0000 (+0200)
Subject: tools: kwbimage: Verify maximal kwbimage header size
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=cbd0043e2093dc9889c696630c118dd7505ec7c7;p=u-boot.git

tools: kwbimage: Verify maximal kwbimage header size

BootROM loads kwbimage header to L2-SRAM and BootROM reserve only 192 kB for it.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
---

diff --git a/tools/kwbimage.c b/tools/kwbimage.c
index 94b7685392..6abb9f2d5c 100644
--- a/tools/kwbimage.c
+++ b/tools/kwbimage.c
@@ -1969,6 +1969,9 @@ static int kwbimage_verify_header(unsigned char *ptr, int image_size,
 	uint32_t size;
 	uint8_t csum;
 
+	if (header_size > 192*1024)
+		return -FDT_ERR_BADSTRUCTURE;
+
 	if (header_size > image_size)
 		return -FDT_ERR_BADSTRUCTURE;