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openSUSE:Evergreen:11.4
dhcp.import4313
dhcp-4.1.1-P1-relay-no-ip-on-interface.diff
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File dhcp-4.1.1-P1-relay-no-ip-on-interface.diff of Package dhcp.import4313
From 4509d956715297469469ab0e207c2641f521470d Mon Sep 17 00:00:00 2001 From: Marius Tomaschewski <mt@suse.de> Date: Fri, 29 Oct 2010 18:49:06 +0200 Subject: [PATCH] dhcp-4.1.1-P1-relay-no-ip-on-interface Fix for a dhcrelay segfault while receiving packets on interfaces without any IPv4 address assigned (bnc#631305, [ISC-Bugs #22409]). Signed-off-by: Marius Tomaschewski <mt@suse.de> --- relay/dhcrelay.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/relay/dhcrelay.c b/relay/dhcrelay.c index 11676ae..c375c83 100644 --- a/relay/dhcrelay.c +++ b/relay/dhcrelay.c @@ -565,6 +565,10 @@ do_relay4(struct interface_info *ip, struct dhcp_packet *packet, log_info("Discarding packet with invalid hlen."); return; } + if (ip->address_count < 1 || ip->addresses == NULL) { + log_info("Discarding packet from interface without IP address"); + return; + } /* Find the interface that corresponds to the giaddr in the packet. */ -- 1.7.1
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