From: Marcin Siodelski <marcin@isc.org>
Date: Thu, 5 Oct 2017 09:17:28 +0000 (+0200)
Subject: [5364] Avoid null pointer dereference when there is no subnet.
X-Git-Tag: trac5297_base~6^2~2
X-Git-Url: http://git.ipfire.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=7be1582119b7858d29593e0521a4802704af7911;p=thirdparty%2Fkea.git

[5364] Avoid null pointer dereference when there is no subnet.
---

diff --git a/src/bin/dhcp6/dhcp6_srv.cc b/src/bin/dhcp6/dhcp6_srv.cc
index d016b0f032..4d6fbe0ef2 100644
--- a/src/bin/dhcp6/dhcp6_srv.cc
+++ b/src/bin/dhcp6/dhcp6_srv.cc
@@ -1237,7 +1237,7 @@ Dhcpv6Srv::assignLeases(const Pkt6Ptr& question, Pkt6Ptr& answer,
 
     // Subnet may be modified by the allocation engine, if the initial subnet
     // belongs to a shared network.
-    if (subnet->getID() != ctx.subnet_->getID()) {
+    if (ctx.subnet_ && subnet && (subnet->getID() != ctx.subnet_->getID())) {
         SharedNetwork6Ptr network;
         subnet->getSharedNetwork(network);
         if (network) {