From 966ad88931e413f1f6a29035af67fe06b7e7fdc3 Mon Sep 17 00:00:00 2001
From: Rainer Jung <[email protected]>
Date: Sat, 25 Aug 2018 13:38:26 +0000
Subject: [PATCH 10/15] Remove dereference of null pointer.

Backport of r1836231 from trunk.


git-svn-id: https://svn.apache.org/repos/asf/apr/apr-util/branches/1.6.x@1839051 13f79535-47bb-0310-9956-ffa450edef68
---
 hooks/apr_hooks.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hooks/apr_hooks.c b/hooks/apr_hooks.c
index 4cedb3a5..af3dc958 100644
--- a/hooks/apr_hooks.c
+++ b/hooks/apr_hooks.c
@@ -180,7 +180,8 @@ static TSort *tsort(TSort *pData,int nItems)
                     break;
                 }
     }
-    pTail->pNext=NULL;  /* unfudge the tail */
+    if(pTail)
+        pTail->pNext=NULL;  /* unfudge the tail */
     return pHead;
 }
 
-- 
2.19.1