netdev - Re: netlink scm creds uid and gids are always 0.

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Message-ID: <87txvsk8h7.fsf@xmission.com>
Date:	Fri, 24 Aug 2012 01:19:32 -0700
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	netdev@...r.kernel.org
Subject: Re: netlink scm creds uid and gids are always 0.

Eric Dumazet <eric.dumazet@...il.com> writes:

> On Thu, 2012-08-23 at 23:45 -0700, Eric W. Biederman wrote:
>> While working on the kuid_t and kgid_t conversion of the audit subsystem
>> I noticed that since the performance problem of scm creds and af_unix
>> sockets were fixed af_netlink sockets have not filled in the uid or gid
>> of the originator of the socket.
>> 
>> I think all we need is an appropriate cred_to_ucred call to fix this
>> regression, but I am going so many different directions right now I
>> can't get myself to focus on this long enough to work up an appripriate
>> patch to fix.
>> 
>> Eric do you think you might take a gander?
>
> Wasnt it fixed by e0e3cea46d31d23dc40df0a49a7a2c04fe8edfea
>
> af_netlink: force credentials passing [CVE-2012-3520]
>
> Or is it a different thing ?

Same thing.  I didn't see that fix go by.

One more little thing I can cross off my list.  Hooray!

Eric

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