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 X-Spam-Level: X-Spam-Status: No, score=-17.8 required=3.0 tests=BAYES_00,DKIM_ADSP_ALL, DKIM_INVALID,DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AE1CEC433EF for ; Tue, 14 Sep 2021 01:20:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 936A76113D for ; Tue, 14 Sep 2021 01:20:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235288AbhINBWC (ORCPT ); Mon, 13 Sep 2021 21:22:02 -0400 Received: from stud.cs.msu.ru ([188.44.42.49]:65454 "EHLO stud.cs.msu.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230131AbhINBWA (ORCPT ); Mon, 13 Sep 2021 21:22:00 -0400 X-Greylist: delayed 2332 seconds by postgrey-1.27 at vger.kernel.org; Mon, 13 Sep 2021 21:22:00 EDT DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=stud.cs.msu.ru; s=dkim; h=Content-Transfer-Encoding:Content-Type:Message-ID :Subject:Cc:To:From:Date:MIME-Version:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=+gbv1hu/j1NA3HNw34/MRbSihzr01uwAahcg8iNAZw8=; b=LfT/dinYFP8jEKcoy2QsNbNbgl opip7LKee2kq2b1fv+to0x2vpyv1DmH5pYQnY1/0lFhNsgpwSiNut03KlJoKweJfZfP96OvqITNiw aX0sN9CO+b37tWX9oPVHZS4EZs62QMgZkbHQmBzN0kBiEHXumU4nNN/JSZsHEEtdJpKrGhq8AMwf1 CST+mzwsGwtXcAYaNPr39W5A4PO88qVxmlNFB5t11RA5nvhkHIZ+rkrgJkAUaqjKWd1iGF/J2/f2C EJayev2X0ryi5PwpBaacFSvoLvZnuVA94NryIE6S8SgyOaYJ2A/YYjtEifYk31zGcbnBE2SJw9Oc9 fYd5dOBw==; Received: from [127.6.6.109] (port=59083 helo=webmail.cs.msu.ru) by stud.cs.msu.ru with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.94.2 (FreeBSD)) (envelope-from ) id 1mPwWD-000AHN-3O; Tue, 14 Sep 2021 03:41:49 +0300 MIME-Version: 1.0 Date: Tue, 14 Sep 2021 03:41:48 +0300 From: Panin Kirill To: "marcel@holtmann.org johan.hedberg@gmail.com luiz.dentz@gmail.com davem@davemloft.net" Cc: "linux-bluetooth@vger.kernel.org netdev@vger.kernel.org" Subject: [PATCH] L2CAP receive buffer overflow User-Agent: Roundcube Webmail/1.4.7 Message-ID: <06ec9b9168eae566c07c920b0b97ae4a@stud.cs.msu.ru> X-Sender: s02200455@stud.cs.msu.ru Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit X-SA-Exim-Connect-IP: 127.6.6.109 X-SA-Exim-Mail-From: s02200455@stud.cs.msu.ru X-SA-Exim-Scanned: No (on stud.cs.msu.ru); SAEximRunCond expanded to false Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From 716e6b5b15eb5d7f87c799b545aeb5188128c36f Mon Sep 17 00:00:00 2001 From: Kirill Panin Date: Tue, 14 Sep 2021 02:41:58 +0300 Subject: [PATCH] Increase L2CAP default MTU. Some Android devices transmit packets with length bigger than MTU. For more information refer to: https://github.com/anonymix007/libldacdec/issues/1 Changes: Increase default MTU up to 688 Signed-off-by: Kirill Panin --- include/net/bluetooth/l2cap.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h index 3c4f550e5a8b..db2a4ebc375b 100644 --- a/include/net/bluetooth/l2cap.h +++ b/include/net/bluetooth/l2cap.h @@ -31,7 +31,7 @@ #include /* L2CAP defaults */ -#define L2CAP_DEFAULT_MTU 672 +#define L2CAP_DEFAULT_MTU 688 #define L2CAP_DEFAULT_MIN_MTU 48 #define L2CAP_DEFAULT_FLUSH_TO 0xFFFF #define L2CAP_EFS_DEFAULT_FLUSH_TO 0xFFFFFFFF -- 2.20.1