[hackers] [scc] [cc2] Clean arena pointer after freeing memory || Roberto E. Vargas Caballero

[git]

commit edbfa2582bdfb774a8be7766e988172802614c5b
Author:     Roberto E. Vargas Caballero <Roberto E. Vargas Caballero>
AuthorDate: Fri Apr 15 01:06:08 2016 +0200
Commit:     Roberto E. Vargas Caballero <Roberto E. Vargas Caballero>
CommitDate: Fri Apr 15 01:06:08 2016 +0200

    [cc2] Clean arena pointer after freeing memory
    
    This mistake generated an invalid access in the second function

diff --git a/cc2/node.c b/cc2/node.c
index c85d347..f642fb3 100644
--- a/cc2/node.c
+++ b/cc2/node.c
@@ -70,6 +70,7 @@ cleannodes(void)
                free(ap->mem);
                free(ap);
        }
+       arena = NULL;
 }
 
 void