From: Mark Andrews <marka@isc.org>
Date: Thu, 17 Jan 2013 03:15:28 +0000 (+1100)
Subject: Silence "Use of memory after it is freed" by asserting the head and tail of list... 
X-Git-Tag: v9.10.0a1~568
X-Git-Url: http://git.ipfire.org/gitweb/?a=commitdiff_plain;h=d710475e18cd32b02657dafa4c7a34cacb738e29;p=thirdparty%2Fbind9.git

Silence "Use of memory after it is freed" by asserting the head and tail of list are not the element after it is unlinked from the list.
---

diff --git a/lib/isc/include/isc/list.h b/lib/isc/include/isc/list.h
index c9bdfc7ad6b..508f9fe6a0c 100644
--- a/lib/isc/include/isc/list.h
+++ b/lib/isc/include/isc/list.h
@@ -102,6 +102,8 @@
 		} \
 		(elt)->link.prev = (type *)(-1); \
 		(elt)->link.next = (type *)(-1); \
+		ISC_INSIST((list).head != (elt)); \
+		ISC_INSIST((list).head != (elt)); \
 	} while (0)
 
 #define __ISC_LIST_UNLINKUNSAFE(list, elt, link) \