netdev - Re: [PATCH] net: ipv6: Do not fix up linklocal and loopback addresses

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <5714F199.7020608@cumulusnetworks.com>
Date:	Mon, 18 Apr 2016 08:39:21 -0600
From:	David Ahern <dsa@...ulusnetworks.com>
To:	Mike Manning <mmanning@...cade.com>, netdev@...r.kernel.org
Subject: Re: [PATCH] net: ipv6: Do not fix up linklocal and loopback addresses

On 4/18/16 8:23 AM, Mike Manning wrote:
> f1705ec197e7 "Make address flushing on ifdown optional" added the option
> to retain user configured addresses on an admin down. A comment to one of
> the later revisions suggested using the IFA_F_PERMANENT flag rather than
> adding a user_managed boolean to the ifaddr struct. A side effect of this
> change is that link local and loopback addresses were also retained which
> was not part of the objective of the original changes. The fix 70af921db6f8
> "Do not keep linklocal and loopback addresses" ensures that these are no
> longer kept. Similarly, the present fix ensures that these addresses are not
> fixed up either, otherwise the incorrect fixup triggers a crash in fib6.
>
> Fixes: f1705ec197e7 ("net: ipv6: Make address flushing on ifdown optional")
> Signed-off-by: Mike Manning <mmanning@...cade.com>
> ---
>   net/ipv6/addrconf.c |   13 +++++++------
>   1 file changed, 7 insertions(+), 6 deletions(-)

Is this a v2? Code change is the same.

Acked-by: David Ahern <dsa@...ulusnetworks.com>