linux-kernel - Re: [patch] file capabilities: Add no_file

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: <26995.1219853604@redhat.com>
Date:	Wed, 27 Aug 2008 17:13:24 +0100
From:	David Howells <dhowells@...hat.com>
To:	"Serge E. Hallyn" <serue@...ibm.com>
Cc:	dhowells@...hat.com, Andreas Gruenbacher <agruen@...e.de>,
	"Andrew G. Morgan" <morgan@...nel.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [patch] file capabilities: Add no_file_caps switch

Serge E. Hallyn <serue@...ibm.com> wrote:

> (Also note that if you have such users, you'll want to ask David Howells not
> to push the patch he has floated removing the ability to pass caps to
> another task altogether when CONFIG_SECURITY_FILE_CAPABILITIES=n :)

Ugh.  My patch removes the ability to pass caps to another task under all
circumstances because to do otherwise means that I have to make the kernel use
RCU locking for a task to access its own creds.  If you want this, I'll have
to redo all my later patches.

David
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/