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 C275AC433F5 for ; Wed, 23 Feb 2022 02:31:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234394AbiBWCbm (ORCPT ); Tue, 22 Feb 2022 21:31:42 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42604 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237114AbiBWCbM (ORCPT ); Tue, 22 Feb 2022 21:31:12 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4392655491; Tue, 22 Feb 2022 18:29:58 -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 ams.source.kernel.org (Postfix) with ESMTPS id 20DEBB81E18; Wed, 23 Feb 2022 02:29:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B1B7EC36AE3; Wed, 23 Feb 2022 02:29:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1645583391; bh=+oaw10vcsziuPG1r4+KJScrE4s0dXjQd4Jd7dTVsJvg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=g4sqHj49BbDhafQ8PsQpWS1awxpycUd8fBPwB7RpqhyVV0mOi3NCCxspdILW8t+yn lvo6eG8KyBgYjrGSpFZoqh2s+oYQQYQn/Cdj/S8l1pTsfqXwyJx3w0MNKI9dUmKC3V 9WkqhFDi9dEAish2P6uJ5z5cYVGooxrrtWRuKU5VSBctRYOApldGvlNl97PCLV6mV5 c2endY9ljAUvdh6aDS/fqmCOj6gbiSyvwvuk1kkdtWRzn6QM+fKBr/+rSlLMir26z4 W8GMEsSbtarrnikvWpQA8HcVEeHSKGLGyb4S6GiLUCZjjgq/atCT50bIh5NFQ44kJs RA0s1CLww87kw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Hangyu Hua , "David S . Miller" , Sasha Levin , jmaloy@redhat.com, ying.xue@windriver.com, kuba@kernel.org, netdev@vger.kernel.org, tipc-discussion@lists.sourceforge.net Subject: [PATCH AUTOSEL 5.15 11/28] tipc: fix a bit overflow in tipc_crypto_key_rcv() Date: Tue, 22 Feb 2022 21:29:12 -0500 Message-Id: <20220223022929.241127-11-sashal@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220223022929.241127-1-sashal@kernel.org> References: <20220223022929.241127-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netdev@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