From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Sat, 27 Aug 2022 15:48:37 +0000 (-0700)
Subject: cgraph concat: fix unchecked allocation failure
X-Git-Tag: 6.0.1~19^2~2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=454b2ea38a8873c9d04dfafc90d0be227d96b65f;p=graphviz

cgraph concat: fix unchecked allocation failure
---

diff --git a/lib/cgraph/grammar.y b/lib/cgraph/grammar.y
index 943ba2783..800a99779 100644
--- a/lib/cgraph/grammar.y
+++ b/lib/cgraph/grammar.y
@@ -21,6 +21,7 @@
 #include <stdbool.h>
 #include <stdio.h>
 #include <cghdr.h>
+#include <cgraph/alloc.h>
 #include <cgraph/unreachable.h>
 #include <stddef.h>
 extern void aagerror(const char*);
@@ -437,7 +438,7 @@ concat (char* s1, char* s2)
   size_t len = strlen(s1) + strlen(s2) + 1;
 
   if (len <= BUFSIZ) sym = buf;
-  else sym = malloc(len);
+  else sym = gv_alloc(len);
   strcpy(sym,s1);
   strcat(sym,s2);
   s = agstrdup (G,sym);