Package: vzctl Version: 3.0.30.2-4 Severity: important Tags: upstream patch ipv6
Dear Maintainer, ndsend which is contained in vzctl package comes with an important bug. According to RFC4861 #4.4 && #4.6.1 when sending an unsolicited Neighbor Advertisement one should be using option type 2 (Target Link-Layer Address). ndsend on the other hand uses option type 1 (Source Link-Layer Address). This makes RFC compliant devices not behaving according to what ndsend is supposed to do, the packet is ignored. The simple attached patch fixes the above issue for ndsend. The patch applies to both stable (wheezy) and oldstable (squeeze) versions. -- System Information: Debian Release: 7.1 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 3.2.0-4-amd64 (SMP w/1 CPU core) Locale: LANG=en_US.UTF-8, LC_CTYPE=el_GR.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages vzctl depends on: ii iproute 20120521-3+b3 ii libc6 2.13-38 ii vzquota 3.0.12-3 Versions of packages vzctl recommends: ii rsync 3.0.9-4 vzctl suggests no packages. -- George Kargiotakis
--- a/src/ndsend.c 2013-08-08 14:49:14.000000000 +0300 +++ b/src/ndsend.c 2013-08-08 14:49:23.000000000 +0300 @@ -93,7 +93,7 @@ pkt->router = 0; pkt->reserved = 0; memcpy(&pkt->target, &src_ipaddr, 16); - pkt->otype = ND_OPT_SOURCE_LINKADDR; + pkt->otype = ND_OPT_TARGET_LINKADDR; pkt->ospace = 1; memcpy(&pkt->obits, real_hwaddr, 6); }
