netdev - Re: [PATCH] selinux: add a skb_owned

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]

Date:	Mon, 08 Apr 2013 23:24:37 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Casey Schaufler <casey@...aufler-ca.com>
Cc:	Paul Moore <pmoore@...hat.com>, David Miller <davem@...emloft.net>,
	netdev@...r.kernel.org, mvadkert@...hat.com,
	linux-security-module@...r.kernel.org
Subject: Re: [PATCH] selinux: add a skb_owned_by() hook

On Mon, 2013-04-08 at 21:29 -0700, Casey Schaufler wrote:

> I don't understand what this hook does.

It documents that security modules might need to get an sk pointer from
an skb, especially for TCP SYNACK messages.

> Does it affect Smack (which uses NetLabel) as well?
> How can I find out?

If you ask the question, thats is probably because Smack is not
affected.

selinux uses netfilter hooks, not Smack. selinux could probably refine
the need to set skb->sk based on CONFIG_NETFILTER, but I leave that
for a future change.

Just try the patch, and add your 'Tested-by', that will be fine.

If you believe Smack has an issue, tell us why, and we'll add the
follow-up patch.

--
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