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 94b7685..6abb9f2 100644
--- a/tools/kwbimage.c
+++ b/tools/kwbimage.c
@@ -1969,6 +1969,9 @@
uint32_t size;
uint8_t csum;
+ if (header_size > 192*1024)
+ return -FDT_ERR_BADSTRUCTURE;
+
if (header_size > image_size)
return -FDT_ERR_BADSTRUCTURE;