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Subject[PATCH] security: inode: fix a missing check for securityfs_create_file
Date
securityfs_create_file  may fail. The fix checks its status and
returns EFAULT upstream if it fails.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
---
security/inode.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/security/inode.c b/security/inode.c
index b7772a9b315e..11d9a6bc2161 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 -EFAULT;
+ }
#endif
return 0;
}
--
2.17.1
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