Re: [patch 1/2] selinux: add executable stack check

[Stephen Smalley <sds@tycho.nsa.gov>]

On Wed, 2005-06-22 at 03:51 +0200, Lorenzo Hernández García-Hierro
wrote:
> This patch adds an execstack permission check that controls the
> ability to make the main process stack executable so that attempts to
> make the stack executable can still be prevented even if the process is
> allowed the existing execmem permission in order to e.g. perform runtime
> code generation.  Note that this does not yet address thread stacks.
> Note also that unlike the execmem check, the execstack check is only
> applied on mprotect calls, not mmap calls, as the current
> security_file_mmap hook is not passed the necessary information
> presently.

> Signed-off-by: Lorenzo Hernandez Garcia-Hierro <lorenzo@gnu.org>
> ---
> 
>  security/selinux/hooks.c                     |   10 ++++++++++
>  security/selinux/include/av_perm_to_string.h |    1 +
>  security/selinux/include/av_permissions.h    |    1 +
>  3 files changed, 12 insertions(+)

Acked-by:  Stephen Smalley <sds@tycho.nsa.gov>

-- 
Stephen Smalley
National Security Agency

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