linux-kernel - Re: [PATCH v3] security: selinux: allow per-file labeling for bpffs

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Date:   Fri, 7 Feb 2020 13:12:04 -0500
From:   Stephen Smalley <sds@...ho.nsa.gov>
To:     Steven Moreland <smoreland@...gle.com>, paul@...l-moore.com,
        eparis@...isplace.org, keescook@...omium.org, anton@...msg.org,
        ccross@...roid.com, tony.luck@...el.com, selinux@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel-team@...roid.com
Cc:     "Connor O'Brien" <connoro@...gle.com>
Subject: Re: [PATCH v3] security: selinux: allow per-file labeling for bpffs

On 2/7/20 1:01 PM, Steven Moreland wrote:
> From: Connor O'Brien <connoro@...gle.com>
> 
> Add support for genfscon per-file labeling of bpffs files. This allows
> for separate permissions for different pinned bpf objects, which may
> be completely unrelated to each other.
> 
> Signed-off-by: Connor O'Brien <connoro@...gle.com>
> Signed-off-by: Steven Moreland <smoreland@...gle.com>

Acked-by: Stephen Smalley <sds@...ho.nsa.gov>

> ---
>   security/selinux/hooks.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
> index d9e8b2131a65..18f8cd47729c 100644
> --- a/security/selinux/hooks.c
> +++ b/security/selinux/hooks.c
> @@ -699,6 +699,7 @@ static int selinux_set_mnt_opts(struct super_block *sb,
>   	if (!strcmp(sb->s_type->name, "debugfs") ||
>   	    !strcmp(sb->s_type->name, "tracefs") ||
>   	    !strcmp(sb->s_type->name, "binderfs") ||
> +	    !strcmp(sb->s_type->name, "bpf") ||
>   	    !strcmp(sb->s_type->name, "pstore"))
>   		sbsec->flags |= SE_SBGENFS;
>   
>