diff --git a/net/tipc/crypto.c b/net/tipc/crypto.c
index b5aa0a835bced57c7e8b76da44b06c1263ceef52..86dbc4ddc1dc736f8cb3f8eee4ef6c1827336cc3 100644
--- a/net/tipc/crypto.c
+++ b/net/tipc/crypto.c
@@ -821,12 +821,20 @@ static int tipc_aead_encrypt(struct tipc_aead *aead, struct sk_buff *skb,
 		goto exit;
 	}
 
+	/* Get net to avoid freed tipc_crypto when delete namespace */
+	if (!maybe_get_net(aead->crypto->net)) {
+		tipc_bearer_put(b);
+		rc = -ENODEV;
+		goto exit;
+	}
+
 	/* Now, do encrypt */
 	rc = crypto_aead_encrypt(req);
 	if (rc == -EINPROGRESS || rc == -EBUSY)
 		return rc;
 
 	tipc_bearer_put(b);
+	put_net(aead->crypto->net);
 
 exit:
 	kfree(ctx);
@@ -864,6 +872,7 @@ static void tipc_aead_encrypt_done(struct crypto_async_request *base, int err)
 	kfree(tx_ctx);
 	tipc_bearer_put(b);
 	tipc_aead_put(aead);
+	put_net(net);
 }
 
 /**