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 29C41C4332F for ; Mon, 7 Mar 2022 10:03:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238744AbiCGKEZ (ORCPT ); Mon, 7 Mar 2022 05:04:25 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40240 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240481AbiCGKBD (ORCPT ); Mon, 7 Mar 2022 05:01:03 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4A2329FEB; Mon, 7 Mar 2022 01:48:55 -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 D801F60919; Mon, 7 Mar 2022 09:48:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D7F17C340E9; Mon, 7 Mar 2022 09:48:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1646646534; bh=+oaw10vcsziuPG1r4+KJScrE4s0dXjQd4Jd7dTVsJvg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=r4ZdqJOWMwIWaZ796ObWx387URZ/a4jKYjIm5fPwzcm1XEcw1zYzqGZUQwQ+7qqWA jHCretO/3rEiSCJB+JoCxy8Oer5pd6kC3mx/opkxrFFXcnqRLhb+WwyPfr2SuIp1nd bdjWmJ7EAZ2yHlkBbtKpx7AU6Wcy0VJS0D3IKeoI= 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 5.16 012/186] tipc: fix a bit overflow in tipc_crypto_key_rcv() Date: Mon, 7 Mar 2022 10:17:30 +0100 Message-Id: <20220307091654.440538716@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220307091654.092878898@linuxfoundation.org> References: <20220307091654.092878898@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 d293614d5fc65..b5074957e8812 100644 --- a/net/tipc/crypto.c +++ b/net/tipc/crypto.c @@ -2287,7 +2287,7 @@ 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