Control: reassign -1 wide-dhcpv6-client 20080615-12
On Lu, 11 aug 14, 21:24:58, Michael Stapelberg wrote:
> Source: wide-dhcpv6-client
> Version: 20080615-12
> Severity: normal
>
> I am running wide-dhcpv6-client on my Ubiquiti EdgeRouter ERLITE-3
> (which takes the package from Debian, and the version is 20080615-12,
> i.e. current testing).
>
> I am using this “script”:
>
> #!/bin/sh
> /etc/init.d/radvd restart
> exit 0
>
> I noticed that after stopping wide-dhcpv6-client, I could not start it
> again. It would always complain about not being able to bind:
>
> bind(6, {sa_family=AF_INET6, sin6_port=htons(5546), inet_pton(AF_INET6,
> "::1", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = -1 EADDRINUSE
> (Address already in use)
> write(2, "Aug/11/2014 19:01:13: dhcp6_ctl_init: bind(control sock): Address
> already in use\n", 81) = 81
>
> It seemed strange to me that ::1:5546 was already in use, but netstat
> -anp identified radvd as having that port open. Since radvd’s code does
> not ever open that port, I checked its file descriptors, and it turns
> out that radvd indeed inherited the file descriptors from
> wide-dhcpv6-client, including the listening port and the configuration
> file file descriptor.
>
> In order to prevent this bug, wide-dhcpv6-client should use the CLOEXEC
> option on all its file descriptors.
>
> -- System Information:
> Debian Release: jessie/sid
> APT prefers testing
> APT policy: (990, 'testing')
> Architecture: amd64 (x86_64)
> Foreign Architectures: armel
> i386
>
> Kernel: Linux 3.14-1-amd64 (SMP w/8 CPU cores)
> Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
> Shell: /bin/sh linked to /bin/dash-- http://wiki.debian.org/FAQsFromDebianUser Offtopic discussions among Debian users and developers: http://lists.alioth.debian.org/mailman/listinfo/d-community-offtopic http://nuvreauspam.ro/gpg-transition.txt
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