Merge tag 'selinux-pr-20180814' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux

Pull SELinux updates from Paul Moore:
 "There are 16 patches in here but really only one that is of any
  significance. That one patch is by nixiaoming and fixes a few places
  where we were not properly cleaning up dentry and inode objects in the
  selinuxfs error handling code. The rest are either printk->pr_*
  conversions, constification tweaks, and a minor tweak to MAINTAINERS.

  Everything passes the selinux-testsuite and looks to merge cleanly
  against your master branch"

* tag 'selinux-pr-20180814' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  selinux: cleanup dentry and inodes on error in selinuxfs
  selinux: constify write_op[]
  selinux: Cleanup printk logging in netnode
  selinux: Cleanup printk logging in avc
  selinux: Cleanup printk logging in netif
  selinux: Cleanup printk logging in netport
  selinux: Cleanup printk logging in sidtab
  selinux: Cleanup printk logging in netlink
  selinux: Cleanup printk logging in selinuxfs
  selinux: Cleanup printk logging in services
  selinux: Cleanup printk logging in avtab
  selinux: Cleanup printk logging in hooks
  selinux: Cleanup printk logging in policydb
  selinux: Cleanup printk logging in ebitmap
  selinux: Cleanup printk logging in conditional
  MAINTAINERS: update the LSM and SELinux subsystems

1 files changed, 31 insertions, 14 deletions

diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index 79d3709b0671..f3a5a138a096 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -614,7 +614,7 @@ static ssize_t sel_write_context(struct file *file, char *buf, size_t size)
 
 	length = -ERANGE;
 	if (len > SIMPLE_TRANSACTION_LIMIT) {
-		printk(KERN_ERR "SELinux: %s:  context size (%u) exceeds "
+		pr_err("SELinux: %s:  context size (%u) exceeds "
 			"payload max\n", __func__, len);
 		goto out;
 	}
@@ -767,7 +767,7 @@ static ssize_t sel_write_relabel(struct file *file, char *buf, size_t size);
 static ssize_t sel_write_user(struct file *file, char *buf, size_t size);
 static ssize_t sel_write_member(struct file *file, char *buf, size_t size);
 
-static ssize_t (*write_op[])(struct file *, char *, size_t) = {
+static ssize_t (*const write_op[])(struct file *, char *, size_t) = {
 	[SEL_ACCESS] = sel_write_access,
 	[SEL_CREATE] = sel_write_create,
 	[SEL_RELABEL] = sel_write_relabel,
@@ -950,7 +950,7 @@ static ssize_t sel_write_create(struct file *file, char *buf, size_t size)
 
 	length = -ERANGE;
 	if (len > SIMPLE_TRANSACTION_LIMIT) {
-		printk(KERN_ERR "SELinux: %s:  context size (%u) exceeds "
+		pr_err("SELinux: %s:  context size (%u) exceeds "
 			"payload max\n", __func__, len);
 		goto out;
 	}
@@ -1141,7 +1141,7 @@ static ssize_t sel_write_member(struct file *file, char *buf, size_t size)
 
 	length = -ERANGE;
 	if (len > SIMPLE_TRANSACTION_LIMIT) {
-		printk(KERN_ERR "SELinux: %s:  context size (%u) exceeds "
+		pr_err("SELinux: %s:  context size (%u) exceeds "
 			"payload max\n", __func__, len);
 		goto out;
 	}
@@ -1365,13 +1365,18 @@ static int sel_make_bools(struct selinux_fs_info *fsi)
 
 		ret = -ENOMEM;
 		inode = sel_make_inode(dir->d_sb, S_IFREG | S_IRUGO | S_IWUSR);
-		if (!inode)
+		if (!inode) {
+			dput(dentry);
 			goto out;
+		}
 
 		ret = -ENAMETOOLONG;
 		len = snprintf(page, PAGE_SIZE, "/%s/%s", BOOL_DIR_NAME, names[i]);
-		if (len >= PAGE_SIZE)
+		if (len >= PAGE_SIZE) {
+			dput(dentry);
+			iput(inode);
 			goto out;
+		}
 
 		isec = (struct inode_security_struct *)inode->i_security;
 		ret = security_genfs_sid(fsi->state, "selinuxfs", page,
@@ -1586,8 +1591,10 @@ static int sel_make_avc_files(struct dentry *dir)
 			return -ENOMEM;
 
 		inode = sel_make_inode(dir->d_sb, S_IFREG|files[i].mode);
-		if (!inode)
+		if (!inode) {
+			dput(dentry);
 			return -ENOMEM;
+		}
 
 		inode->i_fop = files[i].ops;
 		inode->i_ino = ++fsi->last_ino;
@@ -1632,8 +1639,10 @@ static int sel_make_initcon_files(struct dentry *dir)
 			return -ENOMEM;
 
 		inode = sel_make_inode(dir->d_sb, S_IFREG|S_IRUGO);
-		if (!inode)
+		if (!inode) {
+			dput(dentry);
 			return -ENOMEM;
+		}
 
 		inode->i_fop = &sel_initcon_ops;
 		inode->i_ino = i|SEL_INITCON_INO_OFFSET;
@@ -1733,8 +1742,10 @@ static int sel_make_perm_files(char *objclass, int classvalue,
 
 		rc = -ENOMEM;
 		inode = sel_make_inode(dir->d_sb, S_IFREG|S_IRUGO);
-		if (!inode)
+		if (!inode) {
+			dput(dentry);
 			goto out;
+		}
 
 		inode->i_fop = &sel_perm_ops;
 		/* i+1 since perm values are 1-indexed */
@@ -1763,8 +1774,10 @@ static int sel_make_class_dir_entries(char *classname, int index,
 		return -ENOMEM;
 
 	inode = sel_make_inode(dir->d_sb, S_IFREG|S_IRUGO);
-	if (!inode)
+	if (!inode) {
+		dput(dentry);
 		return -ENOMEM;
+	}
 
 	inode->i_fop = &sel_class_ops;
 	inode->i_ino = sel_class_to_ino(index);
@@ -1838,8 +1851,10 @@ static int sel_make_policycap(struct selinux_fs_info *fsi)
 			return -ENOMEM;
 
 		inode = sel_make_inode(fsi->sb, S_IFREG | 0444);
-		if (inode == NULL)
+		if (inode == NULL) {
+			dput(dentry);
 			return -ENOMEM;
+		}
 
 		inode->i_fop = &sel_policycap_ops;
 		inode->i_ino = iter | SEL_POLICYCAP_INO_OFFSET;
@@ -1932,8 +1947,10 @@ static int sel_fill_super(struct super_block *sb, void *data, int silent)
 
 	ret = -ENOMEM;
 	inode = sel_make_inode(sb, S_IFCHR | S_IRUGO | S_IWUGO);
-	if (!inode)
+	if (!inode) {
+		dput(dentry);
 		goto err;
+	}
 
 	inode->i_ino = ++fsi->last_ino;
 	isec = (struct inode_security_struct *)inode->i_security;
@@ -1984,7 +2001,7 @@ static int sel_fill_super(struct super_block *sb, void *data, int silent)
 		goto err;
 	return 0;
 err:
-	printk(KERN_ERR "SELinux: %s:  failed while creating inodes\n",
+	pr_err("SELinux: %s:  failed while creating inodes\n",
 		__func__);
 
 	selinux_fs_info_free(sb);
@@ -2034,7 +2051,7 @@ static int __init init_sel_fs(void)
 
 	selinux_null.mnt = selinuxfs_mount = kern_mount(&sel_fs_type);
 	if (IS_ERR(selinuxfs_mount)) {
-		printk(KERN_ERR "selinuxfs:  could not mount!\n");
+		pr_err("selinuxfs:  could not mount!\n");
 		err = PTR_ERR(selinuxfs_mount);
 		selinuxfs_mount = NULL;
 	}