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* [PATCH] tools: kwbimage: Verify maximal kwbimage header size
@ 2022-09-18 16:39 Pali Rohár
  2022-09-19  7:05 ` Stefan Roese
  2022-10-06 10:42 ` Stefan Roese
  0 siblings, 2 replies; 3+ messages in thread
From: Pali Rohár @ 2022-09-18 16:39 UTC (permalink / raw)
  To: Stefan Roese, Marek Behún; +Cc: u-boot

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

Signed-off-by: Pali Rohár <pali@kernel.org>
---
 tools/kwbimage.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/kwbimage.c b/tools/kwbimage.c
index 94b768539222..6abb9f2d5c01 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;
 
-- 
2.20.1


^ permalink raw reply related	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2022-10-06 10:43 UTC | newest]

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2022-09-18 16:39 [PATCH] tools: kwbimage: Verify maximal kwbimage header size Pali Rohár
2022-09-19  7:05 ` Stefan Roese
2022-10-06 10:42 ` Stefan Roese

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