From: oetiker <oetiker@a5681a0c-68f1-0310-ab6d-d61299d08faa>
Date: Tue, 6 Jan 2009 14:54:41 +0000 (+0000)
Subject: fix for segfault in rrd_cgi: caused by freeing a invalid address when printing an... 
X-Git-Url: https://git.verplant.org/?a=commitdiff_plain;h=6d15811a93ba1a0c5271c525584a3fb5a35ba76f;p=rrdtool.git

fix for segfault in rrd_cgi: caused by freeing a invalid address when printing an error message.


git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk/program@1724 a5681a0c-68f1-0310-ab6d-d61299d08faa
---

diff --git a/src/rrd_cgi.c b/src/rrd_cgi.c
index b535541..13b7d06 100644
--- a/src/rrd_cgi.c
+++ b/src/rrd_cgi.c
@@ -374,6 +374,7 @@ static void calfree(
         if (calcpr) {
             free(calcpr);
         }
+        calcpr = NULL;
     }
 }
 
@@ -953,7 +954,6 @@ char     *drawgraph(
                         DS_NAM_SIZE) * sizeof(char));
             sprintf(err, "[ERROR: %s]", rrd_get_error());
             rrd_clear_error();
-            calfree();
             return err;
         }
     }