From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Thu, 7 May 2020 18:36:13 +0000 (+0200)
Subject: lib: rsa: Also check for presence of r-squared property
X-Git-Url: http://git.dujemihanovic.xyz/img/static/git-logo.png?a=commitdiff_plain;h=48069ff84fe5e5e0ad733bef4718e02600b518c4;p=u-boot.git

lib: rsa: Also check for presence of r-squared property

Better than crashing later if it is missing.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---

diff --git a/lib/rsa/rsa-verify.c b/lib/rsa/rsa-verify.c
index 80e817314b..f7ae174cb0 100644
--- a/lib/rsa/rsa-verify.c
+++ b/lib/rsa/rsa-verify.c
@@ -445,7 +445,7 @@ static int rsa_verify_with_keynode(struct image_sign_info *info,
 
 	prop.rr = fdt_getprop(blob, node, "rsa,r-squared", NULL);
 
-	if (!prop.num_bits || !prop.modulus) {
+	if (!prop.num_bits || !prop.modulus || !prop.rr) {
 		debug("%s: Missing RSA key info", __func__);
 		return -EFAULT;
 	}