From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Fri, 2 Sep 2022 01:02:37 +0000 (-0700)
Subject: smyrna add_selpoly: fix unchecked allocation failure
X-Git-Tag: 6.0.1~13^2~20
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ca6bdd254c6334c250c6e05f38d3a02540d21e19;p=graphviz

smyrna add_selpoly: fix unchecked allocation failure
---

diff --git a/cmd/smyrna/selectionfuncs.c b/cmd/smyrna/selectionfuncs.c
index 184b44d01..04d9e23c0 100644
--- a/cmd/smyrna/selectionfuncs.c
+++ b/cmd/smyrna/selectionfuncs.c
@@ -8,6 +8,7 @@
  * Contributors: Details at https://graphviz.org
  *************************************************************************/
 
+#include <cgraph/alloc.h>
 #include <limits.h>
 #include "selectionfuncs.h"
 #include "topviewfuncs.h"
@@ -272,8 +273,9 @@ void add_selpoly(Agraph_t* g,glCompPoly* selPoly,glCompPoint pt)
 {
     if(!close_poly(selPoly,pt))
     {
+	selPoly->pts = gv_recalloc(selPoly->pts, selPoly->cnt, selPoly->cnt + 1,
+	                           sizeof(glCompPoint));
 	selPoly->cnt ++;
-	selPoly->pts=realloc(selPoly->pts,sizeof(glCompPoint)*selPoly->cnt);
 	selPoly->pts[selPoly->cnt-1].x=pt.x;
 	selPoly->pts[selPoly->cnt-1].y=pt.y;
 	selPoly->pts[selPoly->cnt-1].z=0;