linux-kernel - Re: [PATCH v2] apparmor: Use pointer to struct aa_label for lbs

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Message-ID: <e321b2a4-210e-7b36-8894-1eb0e97159ca@canonical.com>
Date:   Thu, 20 Oct 2022 19:30:20 -0700
From:   John Johansen <john.johansen@...onical.com>
To:     Xiu Jianfeng <xiujianfeng@...wei.com>, paul@...l-moore.com,
        jmorris@...ei.org, serge@...lyn.com, keescook@...omium.org,
        casey@...aufler-ca.com
Cc:     apparmor@...ts.ubuntu.com, linux-security-module@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] apparmor: Use pointer to struct aa_label for lbs_cred

On 10/20/22 17:46, Xiu Jianfeng wrote:
> According to the implementations of cred_label() and set_cred_label(),
> we should use pointer to struct aa_label for lbs_cred instead of struct
> aa_task_ctx, this patch fixes it.
> 
> Fixes: bbd3662a8348 ("Infrastructure management of the cred security blob")
> Signed-off-by: Xiu Jianfeng <xiujianfeng@...wei.com>
> 
yep, thanks I will pull this into my tree

Acked-by: John Johansen <john.johansen@...onical.com>

> ---
> V2: fixes the comment too
> ---
>   security/apparmor/lsm.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
> index f56070270c69..1e2f40db15c5 100644
> --- a/security/apparmor/lsm.c
> +++ b/security/apparmor/lsm.c
> @@ -1194,10 +1194,10 @@ static int apparmor_inet_conn_request(const struct sock *sk, struct sk_buff *skb
>   #endif
>   
>   /*
> - * The cred blob is a pointer to, not an instance of, an aa_task_ctx.
> + * The cred blob is a pointer to, not an instance of, an aa_label.
>    */
>   struct lsm_blob_sizes apparmor_blob_sizes __lsm_ro_after_init = {
> -	.lbs_cred = sizeof(struct aa_task_ctx *),
> +	.lbs_cred = sizeof(struct aa_label *),
>   	.lbs_file = sizeof(struct aa_file_ctx),
>   	.lbs_task = sizeof(struct aa_task_ctx),
>   };