netdev - Re: [PATCHv2 net-next] net: fix address check in rtnl_fdb

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: <51772769.6080306@redhat.com>
Date:	Tue, 23 Apr 2013 20:29:29 -0400
From:	Vlad Yasevich <vyasevic@...hat.com>
To:	David Miller <davem@...emloft.net>
CC:	netdev@...r.kernel.org, dlstevens@...ibm.com
Subject: Re: [PATCHv2 net-next] net: fix address check in rtnl_fdb_del

On 04/23/2013 06:30 PM, David Miller wrote:
> From: Vlad Yasevich <vyasevic@...hat.com>
> Date: Tue, 23 Apr 2013 17:05:23 -0400
>
>> Commit 6681712d67eef14c4ce793561c3231659153a320
>> 	vxlan: generalize forwarding tables
>>
>> relaxed the address checks in rtnl_fdb_del() to use is_zero_ether_addr().
>> This allows users to add multicast addresses using the fdb API.  However,
>> the check in rtnl_fdb_del() still uses a more strict
>> is_valid_ether_addr() which rejects multicast addresses.  Thus it
>> is possible to add an fdb that can not be later removed.
>> Relax the check in rtnl_fdb_del() as well.
>>
>> Signed-off-by: Vlad Yasevich <vyasevic@...hat.com>
>
> I don't think you were able to actually test this patch in the
> amount of time between when the bug in your initial version was
> shown to you and when you posted this new version.
>
> If you indeed didn't test this patch, I really don't think that's
> acceptable, to be honest with you.
>

I actually did test this patch and found the issue in the testing of the
bridging changes I was working on.  It just that I goofed the stand 
alone fix that I thought might warrant a separate submission while I
run more tests on the bridging code.

-vlad
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html