linux-kernel - Re: [ linus-git ] prctl(PR_SET_KEEPCAPS, ...) is broken for some configs, e.g. CONFIG_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: <484C5E84.2020307@kernel.org>
Date:	Sun, 08 Jun 2008 15:34:44 -0700
From:	Andrew Morgan <morgan@...nel.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	Dmitry Adamushko <dmitry.adamushko@...il.com>,
	"Serge E. Hallyn" <serue@...ibm.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [ linus-git ] prctl(PR_SET_KEEPCAPS, ...) is broken for some
 configs, e.g. CONFIG_SECURITY_SELINUX

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

What do people think about comment #8 from Stephen Smalley?:

The dummy module is generally in the untenable position of having to lie
to userspace or break the existing capability-related system call
interface.  It should just go away, and make capability the default
module (w/ stubs for the rest of the LSM hooks as with dummy).  Then
CONFIG_SECURITY=n will yield the same result as CONFIG_SECURITY=y w/o
any further options.

Cheers

Andrew

Andrew Morton wrote:
| On Sun, 08 Jun 2008 08:10:26 -0700 Andrew Morgan <morgan@...nel.org>
wrote:
|
|> Nacked-by: Andrew G. Morgan <morgan@...nel.org>
|>
|> In a configuration in which you are not using capabilities, what is the
|> "keep capabilities" operation supposed to do? Lie to you?
|>
|> http://bugzilla.kernel.org/show_bug.cgi?id=10748
|
| I totally agree with comment 11 there. Quite a number of people have
already
| hit this and more surely will.  How can we help them (and hence us)?
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.7 (Darwin)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFITF6D+bHCR3gb8jsRAlLKAKCjwR7JthL+7+EOWEHzGXv1XptfPACgvT0v
n9WeEJNiuVp0usx1EzKkT8A=
=/D3k
-----END PGP SIGNATURE-----
--
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/