netdev - Re: Netlink mmap tx security?

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: <20141011.190957.1296445052360891885.davem@davemloft.net>
Date:	Sat, 11 Oct 2014 19:09:57 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	luto@...capital.net
Cc:	torvalds@...ux-foundation.org, kaber@...sh.net,
	netdev@...r.kernel.org
Subject: Re: Netlink mmap tx security?

From: Andy Lutomirski <luto@...capital.net>
Date: Sat, 11 Oct 2014 15:29:17 -0700

> On May 12, 2014 3:08 PM, "Andy Lutomirski" <luto@...capital.net> wrote:
>>
>> [moving to netdev -- this is much lower impact than I thought, since
>> you can't set up a netlink mmap ring without global CAP_NET_ADMIN]
> 
> Did anything ever happen here?  Despite not being a privilege
> escalation in the normal sense, it's still a bug, and it's still a
> fairly easy bypass of module signatures.

We definitely still need to address this, and since Patrick has still
not responded on this issue after being given 5 months to do so, the
only reasonable path is to get rid of this feature altogether.

Thanks for reminding me.
--
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