On 2018-02-14 09:51, Kees Cook wrote:
On Wed, Feb 14, 2018 at 8:18 AM, Richard Guy Briggs
<rgb(a)redhat.com> wrote:
> Audit link denied events emit disjointed records when audit is disabled.
> No records should be emitted when audit is disabled.
>
> See:
https://github.com/linux-audit/audit-kernel/issues/21
> Signed-off-by: Richard Guy Briggs <rgb(a)redhat.com>
> ---
> kernel/audit.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/kernel/audit.c b/kernel/audit.c
> index 227db99..4c3fd24 100644
> --- a/kernel/audit.c
> +++ b/kernel/audit.c
> @@ -2261,6 +2261,9 @@ void audit_log_link_denied(const char *operation, const struct
path *link)
> struct audit_buffer *ab;
> struct audit_names *name;
>
> + if (!audit_enabled || audit_dummy_context())
> + return;
> +
> name = kzalloc(sizeof(*name), GFP_NOFS);
> if (!name)
> return;
Doesn't this means errors here would be silent if audit isn't enabled?
I don't that; sysadmins should see this notification regardless of the
audit state...
This is a user error and not a system error, so I would think if system
auditing is disabled, they don't care about this kind of error.
Steve?
-Kees
- RGB
--
Richard Guy Briggs <rgb(a)redhat.com>
Sr. S/W Engineer, Kernel Security, Base Operating Systems
Remote, Ottawa, Red Hat Canada
IRC: rgb, SunRaycer
Voice: +1.647.777.2635, Internal: (81) 32635