libmicrohttpd

commit 7235e65f98c5fd8d937dca87ae1b1794ec3eee96
parent 445c17837fb06fd2f173957fbac7b396f52f8ac4
Author: Evgeny Grin (Karlson2k) <k2k@narod.ru>
Date:   Mon, 17 Oct 2016 21:02:16 +0300

MHD_cleanup_upgraded_connection_(): check pointer for NULL *before* dereferencing

Diffstat:
M
src/microhttpd/daemon.c
 | 
3
++-

1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/microhttpd/daemon.c b/src/microhttpd/daemon.c
@@ -923,7 +923,8 @@ MHD_cleanup_upgraded_connection_ (struct MHD_Connection *connection)
   struct MHD_UpgradeResponseHandle *urh = connection->urh;
 
 #if HTTPS_SUPPORT
-  if (0 != (daemon->options & MHD_USE_TLS))
+  if ( (NULL != urh) &&
+       (0 != (daemon->options & MHD_USE_TLS)) )
     {
       if (0 == (daemon->options & MHD_USE_THREAD_PER_CONNECTION))
         DLL_remove (daemon->urh_head,