From: Dan Fandrich <dan@coneharvesters.com>
Date: Sat, 13 May 2017 20:57:49 +0000 (+0200)
Subject: lib510: don't write past the end of the buffer if it's too small
X-Git-Tag: curl-7_54_1~117
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b1fa80b84facb94a667a6bfaa99476a161285b0d;p=thirdparty%2Fcurl.git

lib510: don't write past the end of the buffer if it's too small
---

diff --git a/tests/libtest/lib510.c b/tests/libtest/lib510.c
index 68588cfe6c..4c290f1ef7 100644
--- a/tests/libtest/lib510.c
+++ b/tests/libtest/lib510.c
@@ -48,6 +48,10 @@ static size_t read_callback(void *ptr, size_t size, size_t nmemb, void *userp)
 
   if(data) {
     size_t len = strlen(data);
+    if(size*nmemb < len) {
+      fprintf(stderr, "read buffer is too small to run test\n");
+      return 0;
+    }
     memcpy(ptr, data, len);
     pooh->counter++; /* advance pointer */
     return len;