Re: [PATCH 3/3] CRED: Move the effective capabilities into the credstruct

From: Andrew Morgan
Date: Thu Sep 20 2007 - 00:11:48 EST


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

David Howells wrote:
> Move the effective capabilities mask from the task struct into the credentials
> record.
>
> Note that the effective capabilities mask in the cred struct shadows that in
> the task_struct because a thread can have its capabilities masks changed by
> another thread. The shadowing is performed by update_current_cred() which is
> invoked on entry to any system call that might need it.

OOC If we were to simply drop support for one process changing the
capabilities of another, would we need this patch?

Thanks

Andrew
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.6 (GNU/Linux)

iD8DBQFG8fLrQheEq9QabfIRApPOAKCHAoazhTTpY/qSjdmRZxDptqeqiACfd4Q7
mdIPx+xpG19ih9uiVv1NSBU=
=TfZd
-----END PGP SIGNATURE-----
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/