Unverified Commit 623051c7 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!7803 v2 selinux: avoid dereference of garbage after mount failure 

Merge Pull Request from: @ci-robot 
 
PR sync from: felix <fuzhen5@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/NGLKW5GMA54V3T3LSH2MSGOGV7KC4WTL/ 
 
https://gitee.com/src-openeuler/kernel/issues/I9QG73 
 
Link:https://gitee.com/openeuler/kernel/pulls/7803

 

Reviewed-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
Signed-off-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
parents 70df70b4 bdb2cef7

security/selinux/selinuxfs.c

+4 −0
Original line number Diff line number Diff line
@@ -2232,13 +2232,17 @@ static int __init init_sel_fs(void) 
		pr_err("selinuxfs:  could not mount!\n");

		err = PTR_ERR(selinuxfs_mount);

		selinuxfs_mount = NULL;

		selinux_null.mnt = NULL;

		return err;

	}



	selinux_null.dentry = d_hash_and_lookup(selinux_null.mnt->mnt_root,

						&null_name);

	if (IS_ERR(selinux_null.dentry)) {

		pr_err("selinuxfs:  could not lookup null!\n");

		err = PTR_ERR(selinux_null.dentry);

		selinux_null.dentry = NULL;

		return err;

	}



	return err;