From: Pali Rohár <[email protected]> Function image_version() returns unsigned value, so it can never be negative. Explicitly check for two supported image versions: v0 and v1.
Signed-off-by: Pali Rohár <[email protected]> Reviewed-by: Marek Behún <[email protected]> --- tools/kwboot.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/kwboot.c b/tools/kwboot.c index 1d32c1b7ad..7feeaa45a2 100644 --- a/tools/kwboot.c +++ b/tools/kwboot.c @@ -634,7 +634,7 @@ kwboot_img_patch_hdr(void *img, size_t size) } image_ver = image_version(img); - if (image_ver < 0) { + if (image_ver != 0 && image_ver != 1) { fprintf(stderr, "Invalid image header version\n"); errno = EINVAL; goto out; -- 2.31.1
