talons

commit 24e8816b793686174e1eca453350d9e613d13e56
parent de770e4c9c5cc1a3f29b7902d1367e71308b81f9
Author: Colin Leroy <colin@colino.net>
Date:   Fri, 13 Nov 2015 10:29:56 +0100

Fix null pointer dereference

Diffstat:
M
src/plugins/mailmbox/mmapstring.c
 | 
5
++++-

1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/plugins/mailmbox/mmapstring.c b/src/plugins/mailmbox/mmapstring.c
@@ -303,7 +303,10 @@ mmap_string_sized_new (size_t dfl_size)
   if (mmap_string_maybe_expand (string, MAX (dfl_size, 2)) == NULL)
     return NULL;
 
-  string->str[0] = 0;
+  if (string->str == NULL)
+    return NULL;
+
+  string->str[0] = '\0';
 
   return string;
 }