Re: [PATCH] selinux: enable genfscon labeling for securityfs

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On Wed, Sep 15, 2021 at 12:24 PM Christian Göttsche
<cgzones@xxxxxxxxxxxxxx> wrote:
>
> Add support for genfscon per-file labeling of securityfs files. This allows
> for separate labels and therby permissions for different files, e.g.
> /sys/kernel/security/integrity/ima/policy.
>
> Signed-off-by: Christian Göttsche <cgzones@xxxxxxxxxxxxxx>
> ---
>  security/selinux/hooks.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)

Hi Christian,

It would be nice if you could add some additional notes on how this
was tested to the description above.

> diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
> index 6517f221d52c..a18626424731 100644
> --- a/security/selinux/hooks.c
> +++ b/security/selinux/hooks.c
> @@ -760,7 +760,8 @@ static int selinux_set_mnt_opts(struct super_block *sb,
>             !strcmp(sb->s_type->name, "tracefs") ||
>             !strcmp(sb->s_type->name, "binder") ||
>             !strcmp(sb->s_type->name, "bpf") ||
> -           !strcmp(sb->s_type->name, "pstore"))
> +           !strcmp(sb->s_type->name, "pstore") ||
> +           !strcmp(sb->s_type->name, "securityfs"))
>                 sbsec->flags |= SE_SBGENFS;
>
>         if (!strcmp(sb->s_type->name, "sysfs") ||
> --
> 2.33.0

-- 
paul moore
www.paul-moore.com




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