From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 23319C433FE for ; Mon, 7 Mar 2022 09:32:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237186AbiCGJdq (ORCPT ); Mon, 7 Mar 2022 04:33:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34086 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237940AbiCGJdZ (ORCPT ); Mon, 7 Mar 2022 04:33:25 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A22E06C1CE; Mon, 7 Mar 2022 01:30:29 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 97ACF611D8; Mon, 7 Mar 2022 09:30:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A7AEFC340F3; Mon, 7 Mar 2022 09:30:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1646645421; bh=ivWUsLtsVfdwyX3MGqfIjbu4yO7DXDnawmsKBrxyaPA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=vZMPYXzb5PugPaqZyWSMFarFFy53VvO4AnY2O92bzfDbOY/ym0g/Cqt8E+6pecuuw /rX+pmOvgykeankSdFSSJxX6lunWjS7E08dYeRHnYGIfjkyfwdWL8w0Mzd7IIIYTKt NxW/IB0xqIlugdYofoKeKb83DgWduM1OcvtQuwFw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hangyu Hua , "David S. Miller" , Sasha Levin Subject: [PATCH 5.10 009/105] tipc: fix a bit overflow in tipc_crypto_key_rcv() Date: Mon, 7 Mar 2022 10:18:12 +0100 Message-Id: <20220307091644.446884298@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220307091644.179885033@linuxfoundation.org> References: <20220307091644.179885033@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Hangyu Hua [ Upstream commit 143de8d97d79316590475dc2a84513c63c863ddf ] msg_data_sz return a 32bit value, but size is 16bit. This may lead to a bit overflow. Signed-off-by: Hangyu Hua Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- net/tipc/crypto.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/tipc/crypto.c b/net/tipc/crypto.c index d8a2f424786fc..6f91b9a306dc3 100644 --- a/net/tipc/crypto.c +++ b/net/tipc/crypto.c @@ -2280,7 +2280,7 @@ static bool tipc_crypto_key_rcv(struct tipc_crypto *rx, struct tipc_msg *hdr) struct tipc_crypto *tx = tipc_net(rx->net)->crypto_tx; struct tipc_aead_key *skey = NULL; u16 key_gen = msg_key_gen(hdr); - u16 size = msg_data_sz(hdr); + u32 size = msg_data_sz(hdr); u8 *data = msg_data(hdr); unsigned int keylen; -- 2.34.1