From: Alexander Aring <alex.aring@gmail.com>
Date: Tue, 13 Oct 2015 11:42:54 +0000 (+0200)
Subject: mac802154: llsec: use kzfree
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=71cd2aa53dbf9eb8cb954fc9e65de8dab774b7f6;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

mac802154: llsec: use kzfree

This patch will use kzfree instead kfree for security related
information which can be offered by acccident.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---

diff --git a/net/mac802154/llsec.c b/net/mac802154/llsec.c
index 7799d3c41fe2..a13d02b7cee4 100644
--- a/net/mac802154/llsec.c
+++ b/net/mac802154/llsec.c
@@ -55,7 +55,7 @@ void mac802154_llsec_destroy(struct mac802154_llsec *sec)
 
 		msl = container_of(sl, struct mac802154_llsec_seclevel, level);
 		list_del(&sl->list);
-		kfree(msl);
+		kzfree(msl);
 	}
 
 	list_for_each_entry_safe(dev, dn, &sec->table.devices, list) {
@@ -72,7 +72,7 @@ void mac802154_llsec_destroy(struct mac802154_llsec *sec)
 		mkey = container_of(key->key, struct mac802154_llsec_key, key);
 		list_del(&key->list);
 		llsec_key_put(mkey);
-		kfree(key);
+		kzfree(key);
 	}
 }
 
@@ -161,7 +161,7 @@ err_tfm:
 		if (key->tfm[i])
 			crypto_free_aead(key->tfm[i]);
 
-	kfree(key);
+	kzfree(key);
 	return NULL;
 }
 
@@ -176,7 +176,7 @@ static void llsec_key_release(struct kref *ref)
 		crypto_free_aead(key->tfm[i]);
 
 	crypto_free_blkcipher(key->tfm0);
-	kfree(key);
+	kzfree(key);
 }
 
 static struct mac802154_llsec_key*
@@ -267,7 +267,7 @@ int mac802154_llsec_key_add(struct mac802154_llsec *sec,
 	return 0;
 
 fail:
-	kfree(new);
+	kzfree(new);
 	return -ENOMEM;
 }
 
@@ -347,10 +347,10 @@ static void llsec_dev_free(struct mac802154_llsec_device *dev)
 				      devkey);
 
 		list_del(&pos->list);
-		kfree(devkey);
+		kzfree(devkey);
 	}
 
-	kfree(dev);
+	kzfree(dev);
 }
 
 int mac802154_llsec_dev_add(struct mac802154_llsec *sec,
@@ -681,7 +681,7 @@ llsec_do_encrypt_auth(struct sk_buff *skb, const struct mac802154_llsec *sec,
 
 	rc = crypto_aead_encrypt(req);
 
-	kfree(req);
+	kzfree(req);
 
 	return rc;
 }
@@ -881,7 +881,7 @@ llsec_do_decrypt_auth(struct sk_buff *skb, const struct mac802154_llsec *sec,
 
 	rc = crypto_aead_decrypt(req);
 
-	kfree(req);
+	kzfree(req);
 	skb_trim(skb, skb->len - authlen);
 
 	return rc;
@@ -921,7 +921,7 @@ llsec_update_devkey_record(struct mac802154_llsec_device *dev,
 		if (!devkey)
 			list_add_rcu(&next->devkey.list, &dev->dev.keys);
 		else
-			kfree(next);
+			kzfree(next);
 
 		spin_unlock_bh(&dev->lock);
 	}