netdev - Re: New skb extension for use by LSMs (skb "security blob")?

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: <20190822.141845.217313560870249775.davem@davemloft.net>
Date:   Thu, 22 Aug 2019 14:18:45 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     casey@...aufler-ca.com
Cc:     fw@...len.de, paul@...l-moore.com, netdev@...r.kernel.org,
        linux-security-module@...r.kernel.org, selinux@...r.kernel.org
Subject: Re: New skb extension for use by LSMs (skb "security blob")?

From: Casey Schaufler <casey@...aufler-ca.com>
Date: Thu, 22 Aug 2019 13:35:01 -0700

> If the secmark where replaced by a security blob, the u32 secmark field
> in an sk_buff would be replaced by a void * security field.

You can already use the secmark to hash to some kind of pointer or other
object.