On 11/11/21 16:59, Marek Behún wrote:
From: Pali Rohár <p...@kernel.org>
There are certain restrictions for kwbimage offset and blocksize.
Validate them.
Signed-off-by: Pali Rohár <p...@kernel.org>
Signed-off-by: Marek Behún <marek.be...@nic.cz>
Some nitpicking comments below...
Other than this:
Reviewed-by: Stefan Roese <s...@denx.de>
---
arch/arm/mach-mvebu/spl.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/arm/mach-mvebu/spl.c b/arch/arm/mach-mvebu/spl.c
index 73c4b9af3e..71994e44f1 100644
--- a/arch/arm/mach-mvebu/spl.c
+++ b/arch/arm/mach-mvebu/spl.c
@@ -163,6 +163,16 @@ int spl_parse_board_header(struct spl_image_info
*spl_image,
spl_image->offset *= 512;
#endif
+ if (spl_image->offset % 4 != 0) {
+ printf("ERROR: Wrong srcaddr in kwbimage\n");
+ return -EINVAL;
+ }
+
+ if (mhdr->blocksize <= 4 || mhdr->blocksize % 4 != 0) {
+ printf("ERROR: Wrong blocksize in kwbimage\n");
+ return -EINVAL;
+ }
It might make sense to print the incorrect srcaddr and / or blocksize
in the error case, as this might help the user with solving the problem.
Thanks,
Stefan
+
spl_image->size = mhdr->blocksize;
spl_image->entry_point = mhdr->execaddr;
spl_image->load_addr = mhdr->destaddr;
Viele Grüße,
Stefan Roese
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