From 298ebd6024cee33ce6ce5f91a9c1596cdf405a62 Mon Sep 17 00:00:00 2001
From: Sean Parkinson <sean@wolfssl.com>
Date: Fri, 5 Mar 2021 10:02:07 +1000
Subject: [PATCH] MP small: read radix set result to 0 on all errors

---
 wolfcrypt/src/integer.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/wolfcrypt/src/integer.c b/wolfcrypt/src/integer.c
index a4fc5f6ca..b2eafb4cc 100644
--- a/wolfcrypt/src/integer.c
+++ b/wolfcrypt/src/integer.c
@@ -5229,9 +5229,11 @@ int mp_read_radix (mp_int * a, const char *str, int radix)
      */
     if (y < radix) {
       if ((res = mp_mul_d (a, (mp_digit) radix, a)) != MP_OKAY) {
+         mp_zero(a);
          return res;
       }
       if ((res = mp_add_d (a, (mp_digit) y, a)) != MP_OKAY) {
+         mp_zero(a);
          return res;
       }
     } else {