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2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/security/apparmor/policy.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * AppArmor security module
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  *
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@@ -5,12 +6,6 @@
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  *
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  * Copyright (C) 1998-2008 Novell/SUSE
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  * Copyright 2009-2010 Canonical Ltd.
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU General Public License as
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- * published by the Free Software Foundation, version 2 of the
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- * License.
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- *
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  *
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  * AppArmor policy is based around profiles, which contain the rules a
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  * task is confined by.  Every task in the system has a profile attached
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@@ -192,9 +187,9 @@
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 {
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 	struct aa_data *data = ptr;
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-	kzfree(data->data);
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-	kzfree(data->key);
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-	kzfree(data);
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+	kfree_sensitive(data->data);
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+	kfree_sensitive(data->key);
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+	kfree_sensitive(data);
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 }
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 /**
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@@ -222,16 +217,19 @@
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 	aa_put_profile(rcu_access_pointer(profile->parent));
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 	aa_put_ns(profile->ns);
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-	kzfree(profile->rename);
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+	kfree_sensitive(profile->rename);
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 	aa_free_file_rules(&profile->file);
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 	aa_free_cap_rules(&profile->caps);
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 	aa_free_rlimit_rules(&profile->rlimits);
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 	for (i = 0; i < profile->xattr_count; i++)
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-		kzfree(profile->xattrs[i]);
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-	kzfree(profile->xattrs);
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-	kzfree(profile->dirname);
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+		kfree_sensitive(profile->xattrs[i]);
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+	kfree_sensitive(profile->xattrs);
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+	for (i = 0; i < profile->secmark_count; i++)
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+		kfree_sensitive(profile->secmark[i].label);
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+	kfree_sensitive(profile->secmark);
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+	kfree_sensitive(profile->dirname);
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 	aa_put_dfa(profile->xmatch);
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 	aa_put_dfa(profile->policy.dfa);
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@@ -239,13 +237,14 @@
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 		rht = profile->data;
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 		profile->data = NULL;
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 		rhashtable_free_and_destroy(rht, aa_free_data, NULL);
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-		kzfree(rht);
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+		kfree_sensitive(rht);
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 	}
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-	kzfree(profile->hash);
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+	kfree_sensitive(profile->hash);
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 	aa_put_loaddata(profile->rawdata);
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+	aa_label_destroy(&profile->label);
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-	kzfree(profile);
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+	kfree_sensitive(profile);
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 }
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 /**
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@@ -584,7 +583,7 @@
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 {
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 	if (profile) {
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 		if (profile->label.flags & FLAG_IMMUTIBLE) {
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-			*info = "cannot replace immutible profile";
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+			*info = "cannot replace immutable profile";
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 			return -EPERM;
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 		} else if (noreplace) {
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 			*info = "profile already exists";
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@@ -858,7 +857,7 @@
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 ssize_t aa_replace_profiles(struct aa_ns *policy_ns, struct aa_label *label,
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 			    u32 mask, struct aa_loaddata *udata)
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 {
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-	const char *ns_name, *info = NULL;
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+	const char *ns_name = NULL, *info = NULL;
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 	struct aa_ns *ns = NULL;
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 	struct aa_load_ent *ent, *tmp;
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 	struct aa_loaddata *rawdata_ent;
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@@ -1045,6 +1044,7 @@
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 out:
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 	aa_put_ns(ns);
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 	aa_put_loaddata(udata);
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+	kfree(ns_name);
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 	if (error)
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 		return error;
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@@ -1125,7 +1125,7 @@
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 	if (!name) {
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 		/* remove namespace - can only happen if fqname[0] == ':' */
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-		mutex_lock_nested(&ns->parent->lock, ns->level);
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+		mutex_lock_nested(&ns->parent->lock, ns->parent->level);
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 		__aa_bump_ns_revision(ns);
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 		__aa_remove_ns(ns);
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 		mutex_unlock(&ns->parent->lock);