Difuse/u-boot
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

tools: kwboot: Check for v1 header size

Browse source 
Too small invalid headers may cause kwboot to crash.
Check for header size of v1 images.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Chris Packham <judge.packham@gmail.com>
Tested-by: Chris Packham <judge.packham@gmail.com>
This commit is contained in:
Pali Rohár 2021-07-23 11:14:21 +02:00 committed by Stefan Roese
parent b943eee915
commit 825a2ca023
1 changed files with 5 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
tools/kwboot.c
View file

@ -645,6 +645,11 @@ kwboot_img_patch_hdr(void *img, size_t size)
else
hdrsz = KWBHEADER_V1_SIZE(hdr);
if (size < hdrsz) {
errno = EINVAL;
goto out;
}
csum = kwboot_img_csum8(hdr, hdrsz) - hdr->checksum;
if (csum != hdr->checksum) {
errno = EINVAL;