From 78d997f98bc049bf62c8f4c3e39a30fdbdef2fd8 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
Date: Wed, 12 Jan 2022 18:20:43 +0100
Subject: [PATCH] tools: kwbimage: Check for maximal kwbimage header size
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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>
---
 tools/kwbimage.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/kwbimage.c b/tools/kwbimage.c
index a5b518f..ce053a4 100644
--- a/tools/kwbimage.c
+++ b/tools/kwbimage.c
@@ -2033,6 +2033,11 @@ static int kwbimage_generate(struct image_tool_params *params,
 			free(image_cfg);
 			exit(EXIT_FAILURE);
 		}
+		if (alloc_len > 192*1024) {
+			fprintf(stderr, "Header is too big (%u bytes), maximal kwbimage header size is %u bytes\n", alloc_len, 192*1024);
+			free(image_cfg);
+			exit(EXIT_FAILURE);
+		}
 		break;
 
 	default:
-- 
2.7.4