[RFC PATCH v2 34/34] lsm: add a LSM_STARTED_ALL notification event

[Casey Schaufler]

On 7/21/2025 4:21 PM, Paul Moore wrote:
> Add a new LSM notifier event, LSM_STARTED_ALL, which is fired once at
> boot when all of the LSMs have been started.
>
> Reviewed-by: Kees Cook <kees at kernel.org>
> Signed-off-by: Paul Moore <paul at paul-moore.com>

Reviewed-by: Casey Schaufler <casey at schaufler-ca.com>


> ---
>  include/linux/security.h | 1 +
>  security/lsm_init.c      | 1 +
>  2 files changed, 2 insertions(+)
>
> diff --git a/include/linux/security.h b/include/linux/security.h
> index c57a9a7499ea..b9cace094f0f 100644
> --- a/include/linux/security.h
> +++ b/include/linux/security.h
> @@ -85,6 +85,7 @@ struct timezone;
>  
>  enum lsm_event {
>  	LSM_POLICY_CHANGE,
> +	LSM_STARTED_ALL,
>  };
>  
>  struct dm_verity_digest {
> diff --git a/security/lsm_init.c b/security/lsm_init.c
> index f178a9a2f9d4..6812a13f64c9 100644
> --- a/security/lsm_init.c
> +++ b/security/lsm_init.c
> @@ -550,6 +550,7 @@ static int __init security_initcall_late(void)
>  
>  	rc = lsm_initcall(late);
>  	lsm_pr_dbg("all enabled LSMs fully activated\n");
> +	call_blocking_lsm_notifier(LSM_STARTED_ALL, NULL);
>  
>  	return rc;
>  }