From 051ccdf0e7be353c5dce3fa0cda44b7e1df0bb3c Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Thu, 23 Apr 2020 12:05:27 +0200
Subject: [PATCH] fix #6215~15757

---
 src/util/amount.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/util/amount.c b/src/util/amount.c
index 3d838b4ce..b5e28051c 100644
--- a/src/util/amount.c
+++ b/src/util/amount.c
@@ -128,7 +128,8 @@ TALER_string_to_amount (const char *str,
     n = *value - '0';
     if ( (amount->value * 10 < amount->value) ||
          (amount->value * 10 + n < amount->value) ||
-         (amount->value > MAX_AMOUNT_VALUE) )
+         (amount->value > MAX_AMOUNT_VALUE) ||
+         (amount->value * 10 + n > MAX_AMOUNT_VALUE) )
     {
       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                   "Value specified in amount `%s' is too large\n",