Re: [PATCH -v3 2/4] vm: use new has_capability_noaudit

From: Stephen Smalley
Date: Fri Nov 07 2008 - 10:40:53 EST


On Fri, 2008-11-07 at 10:23 -0500, Eric Paris wrote:
> The oomkiller calculations make decisions based on capabilities. Since
> these are not security decisions and LSMs should not record if they fall
> the request they should use the new has_capability_noaudit() interface so
> the denials will not be recorded.
>
> Signed-off-by: Eric Paris <eparis@xxxxxxxxxx>

Acked-by: Stephen Smalley <sds@xxxxxxxxxxxxx>

> ---
>
> mm/oom_kill.c | 6 +++---
> 1 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/mm/oom_kill.c b/mm/oom_kill.c
> index a0a0190..df259c2 100644
> --- a/mm/oom_kill.c
> +++ b/mm/oom_kill.c
> @@ -128,8 +128,8 @@ unsigned long badness(struct task_struct *p, unsigned long uptime)
> * Superuser processes are usually more important, so we make it
> * less likely that we kill those.
> */
> - if (has_capability(p, CAP_SYS_ADMIN) ||
> - has_capability(p, CAP_SYS_RESOURCE))
> + if (has_capability_noaudit(p, CAP_SYS_ADMIN) ||
> + has_capability_noaudit(p, CAP_SYS_RESOURCE))
> points /= 4;
>
> /*
> @@ -138,7 +138,7 @@ unsigned long badness(struct task_struct *p, unsigned long uptime)
> * tend to only have this flag set on applications they think
> * of as important.
> */
> - if (has_capability(p, CAP_SYS_RAWIO))
> + if (has_capability_noaudit(p, CAP_SYS_RAWIO))
> points /= 4;
>
> /*
--
Stephen Smalley
National Security Agency

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