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

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Date:   Thu, 20 Oct 2022 10:36:21 +0800
From:   Xiu Jianfeng <xiujianfeng@...wei.com>
To:     <john.johansen@...onical.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: [PATCH] apparmor: Use pointer to struct aa_label for lbs_cred

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 fix it.

Fixes: bbd3662a8348 ("Infrastructure management of the cred security blob")
Signed-off-by: Xiu Jianfeng <xiujianfeng@...wei.com>
---
 security/apparmor/lsm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index f56070270c69..fd2f57972a17 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -1197,7 +1197,7 @@ static int apparmor_inet_conn_request(const struct sock *sk, struct sk_buff *skb
  * The cred blob is a pointer to, not an instance of, an aa_task_ctx.
  */
 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),
 };
-- 
2.17.1