[PATCH] init/main.c: Initialize early LSMs after arch code

[Paul Moore]

On Thu, Aug 1, 2024 at 1:17 PM KP Singh <kpsingh at kernel.org> wrote:
>
> With LSMs using static calls, early_lsm_init needs to wait for setup_arch
> for architecture specific functionality which includes jump tables and
> static calls to be initialized.
>
> This only affects "early LSMs" i.e. only lockdown when
> CONFIG_SECURITY_LOCKDOWN_LSM_EARLY is set.
>
> Fixes: 2732ad5ecd5b ("lsm: replace indirect LSM hook calls with static calls")
> Signed-off-by: KP Singh <kpsingh at kernel.org>
> ---
>  init/main.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Considering the problems we've had, I'd like to hear more about how
you've tested this and I'd like to see some reviews/ACKs from some
arch people too.

> diff --git a/init/main.c b/init/main.c
> index 206acdde51f5..a0e3f3c720e6 100644
> --- a/init/main.c
> +++ b/init/main.c
> @@ -922,8 +922,8 @@ void start_kernel(void)
>         boot_cpu_init();
>         page_address_init();
>         pr_notice("%s", linux_banner);
> -       early_security_init();
>         setup_arch(&command_line);
> +       early_security_init();
>         setup_boot_config();
>         setup_command_line(command_line);
>         setup_nr_cpu_ids();
> --
> 2.46.0.rc2.264.g509ed76dc8-goog

-- 
paul-moore.com