1 files changed, 7 insertions, 1 deletions

diff --git a/src/lib/libcrypto/conf/conf_mod.c b/src/lib/libcrypto/conf/conf_mod.c
index ee9c677d9b..df1642a0a5 100644
--- a/src/lib/libcrypto/conf/conf_mod.c
+++ b/src/lib/libcrypto/conf/conf_mod.c
@@ -582,8 +582,14 @@ int CONF_parse_list(const char *list_, int sep, int nospc,
         {
         int ret;
         const char *lstart, *tmpend, *p;
-        lstart = list_;
 
+        if(list_ == NULL)
+                {
+                CONFerr(CONF_F_CONF_PARSE_LIST, CONF_R_LIST_CANNOT_BE_NULL);
+                return 0;
+                }
+
+        lstart = list_;
         for(;;)
                 {
                 if (nospc)