From: Kangjie Lu <kjlu@umn.edu>
To: kjlu@umn.edu
Cc: pakki001@umn.edu, James Morris <jmorris@namei.org>,
"Serge E. Hallyn" <serge@hallyn.com>,
linux-security-module@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] security: inode: fix a missing check for securityfs_create_file
Date: Fri, 15 Mar 2019 16:00:25 -0500 [thread overview]
Message-ID: <20190315210025.17832-1-kjlu@umn.edu> (raw)
In-Reply-To: <alpine.LRH.2.21.1903160608080.2905@namei.org>
securityfs_create_file may fail. The fix checks its status and
returns the error code upstream if it fails.
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
---
Return the exact error code upstream.
---
security/inode.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/security/inode.c b/security/inode.c
index b7772a9b315e..667f8b15027d 100644
--- a/security/inode.c
+++ b/security/inode.c
@@ -339,6 +339,11 @@ static int __init securityfs_init(void)
#ifdef CONFIG_SECURITY
lsm_dentry = securityfs_create_file("lsm", 0444, NULL, NULL,
&lsm_ops);
+ if (IS_ERR(lsm_dentry)) {
+ unregister_filesystem(&fs_type);
+ sysfs_remove_mount_point(kernel_kobj, "security");
+ return PTR_ERR(lsm_dentry);
+ }
#endif
return 0;
}
--
2.17.1
next prev parent reply other threads:[~2019-03-15 21:00 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-15 4:09 [PATCH] security: inode: fix a missing check for securityfs_create_file Kangjie Lu
2019-03-15 19:08 ` James Morris
2019-03-15 21:00 ` Kangjie Lu [this message]
2019-03-15 22:34 ` Tetsuo Handa
2019-04-10 17:34 ` James Morris
2019-04-10 18:01 ` Al Viro
2019-04-10 22:00 ` James Morris
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