Received: by 2002:ab2:1689:0:b0:1f7:5705:b850 with SMTP id d9csp1850212lqa; Tue, 30 Apr 2024 00:34:32 -0700 (PDT) X-Forwarded-Encrypted: i=3; AJvYcCUuOIwDZfFLkjbXQ3Z67sfL/GqywClhSCR87jbuMm8TjIkMCU4kQDxKwy+Cz01dYUtRRaYVT4m3j10D/eU0yjAgNxgmP4ycgHUvKZFjbQ== X-Google-Smtp-Source: AGHT+IFG6sq/dt0o1Mx+RVawnFMP6kf+0fOvhL8w5gzdp1uX6awCEn0LZtfJ5yzmv7rd7fEQIRO1 X-Received: by 2002:a50:998a:0:b0:56d:f3a7:60e with SMTP id m10-20020a50998a000000b0056df3a7060emr7768117edb.22.1714462471956; Tue, 30 Apr 2024 00:34:31 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1714462471; cv=pass; d=google.com; s=arc-20160816; b=hIVMAAcI7jtFixgulufvir6RwTyDTGppvxfEclDMkiZNqyXVGNfZPFM7IyY5PmqYFu 9ATqeI0XPWUBYMntvxwMBa2RA8XYB/mC83jjO3Eph/qQIHhzWdq1urFdODncVJ3OsQiG yoEZYh8XleOygSvC8//CUh9GNi3e4MZtDvj4SBRAXeLScRPe26d36qcaHlfh/FbLgHO8 q7ntbRY5YQG+blzOsNeJrAawuW3ZBxAVjeSZ5cBd3RBjLlNZYBaHiQGAxVW/4m1bP/sQ 6ElcB/JX9xlCwQZnllj1C6OOtJQK1jWq1ZEsthAedGKvvP+27lOJJ6ylRhshWOaZyaUo e9FQ== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=ui-outboundreport:content-transfer-encoding:in-reply-to:from :content-language:subject:references:cc:to:user-agent:mime-version :list-unsubscribe:list-subscribe:list-id:precedence:date:message-id :dkim-signature; bh=7dyCd+XT/wrQkCsgsqTU/+v+pFnIA0EzpEmxVk6QQ7Y=; fh=zhNCLSWtqU+S1drXLo1f58uB8DsM4+XMLIDhKxbt0pQ=; b=gT3Rz5xGG7up/RSJ0SWsAvexU2gLvMRCU1z/U69J1RjhuO5jzaSbjmUFPkqpdkiQfO RaVhZUT1e7BNkhbvtxME9bl5yOu8AUqiKBcATb2d288+5ArjJUw5KW3FAo6nG+YcBLTw CMntB3/D3rd7rm4DsYIXZvnoojiBr5vGvah68y53IyX59DZUqal2zxkSpGLHfPOHBMIG hp9fr695iiA25BsYmF6qN8lCR+fFYgOjXC8QwcEF40veSIEKK1fTK1MH/oI8xG0UfuJ0 cSqEzEeftQ9cFxCdEL8F5UQRiZ6u1pWvDJR56tIIfqqy2TYUi5NjursYSpEvCiHsNVrc 3hcg==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@web.de header.s=s29768273 header.b=W8siq2RI; arc=pass (i=1 spf=pass spfdomain=web.de dkim=pass dkdomain=web.de dmarc=pass fromdomain=web.de); spf=pass (google.com: domain of linux-bluetooth+bounces-4176-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) smtp.mailfrom="linux-bluetooth+bounces-4176-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=web.de Return-Path: Received: from am.mirrors.kernel.org (am.mirrors.kernel.org. [2604:1380:4601:e00::3]) by mx.google.com with ESMTPS id q8-20020a50aa88000000b005727c955b78si2706283edc.109.2024.04.30.00.34.31 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 Apr 2024 00:34:31 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-bluetooth+bounces-4176-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) client-ip=2604:1380:4601:e00::3; Authentication-Results: mx.google.com; dkim=pass header.i=@web.de header.s=s29768273 header.b=W8siq2RI; arc=pass (i=1 spf=pass spfdomain=web.de dkim=pass dkdomain=web.de dmarc=pass fromdomain=web.de); spf=pass (google.com: domain of linux-bluetooth+bounces-4176-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) smtp.mailfrom="linux-bluetooth+bounces-4176-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=web.de Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by am.mirrors.kernel.org (Postfix) with ESMTPS id ADCB01F225B2 for ; Tue, 30 Apr 2024 07:34:31 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 293544596D; Tue, 30 Apr 2024 07:33:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=web.de header.i=markus.elfring@web.de header.b="W8siq2RI" X-Original-To: linux-bluetooth@vger.kernel.org Received: from mout.web.de (mout.web.de [212.227.15.3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1039714AA9; Tue, 30 Apr 2024 07:33:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=212.227.15.3 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714462427; cv=none; b=NxMJy6ve49iirmDnnZFsbEY588yuJarvk4AbuCKVFlL6g+iGLdmJnDQ+Zj8ymqiveno6mkeMyyjxAMG2LkHmX9C7gYObBx5GgCNf3W1uUfQuEp9ELBRrw2rtHCWHWCWRulPvCXiRepokNs+tIEydN4XJ0NHn/YGBd8ODdxu/vEE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714462427; c=relaxed/simple; bh=7dyCd+XT/wrQkCsgsqTU/+v+pFnIA0EzpEmxVk6QQ7Y=; h=Message-ID:Date:MIME-Version:To:Cc:References:Subject:From: In-Reply-To:Content-Type; b=Fjl+Y1hPqlp2FmEFY2yLLBLaZ33eVKAe5VRYCwGyuJctRVb63BpuuM8oPWe/DIHv+9sBYzJFIDchAaSCg831sSmxF+f8OUevCmAFCD5t5Ek4L0fOaySWMzU/lEwXH76Dz5tN3cDVZGzRueoeCfDloerNgqZ+gLji0k+3Zv7vzrg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=web.de; spf=pass smtp.mailfrom=web.de; dkim=pass (2048-bit key) header.d=web.de header.i=markus.elfring@web.de header.b=W8siq2RI; arc=none smtp.client-ip=212.227.15.3 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=web.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=web.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=web.de; s=s29768273; t=1714462412; x=1715067212; i=markus.elfring@web.de; bh=7dyCd+XT/wrQkCsgsqTU/+v+pFnIA0EzpEmxVk6QQ7Y=; h=X-UI-Sender-Class:Message-ID:Date:MIME-Version:To:Cc:References: Subject:From:In-Reply-To:Content-Type:Content-Transfer-Encoding: cc:content-transfer-encoding:content-type:date:from:message-id: mime-version:reply-to:subject:to; b=W8siq2RIuAF9aG5uFEjllD1snUDaT/M9pQ8Ok9h+rku2TmMh6KVg3YF+Gpm5cE2C X8m2UDjP6GEVUSOOVcXas/i6arH+8SfxGzhqdByJbExVLm2Hog1nS6CLACd8XZjh/ dFXTy1rzwvC0q7ef7YNomfofgXEPUSAq0V29na13JPrEWtuTBXpu6GZrN6In7O01f hHrnHcr/C1X6pFJb6AfllU0xhL3L6hWYBufcStG9+K+DjaYRLOJjUSWzDTFtUkiV+ nz3iM3YnlyptKA7O3mWEudwLpFoBzPtbxhqcA7AbpmbaWimoE/4wjkh4WhU1mGUmf kwMJPTsOmeBujuhHtQ== X-UI-Sender-Class: 814a7b36-bfc1-4dae-8640-3722d8ec6cd6 Received: from [192.168.178.21] ([94.31.85.95]) by smtp.web.de (mrweb006 [213.165.67.108]) with ESMTPSA (Nemesis) id 1MPrLL-1sFmbX1LT1-00McyD; Tue, 30 Apr 2024 09:33:32 +0200 Message-ID: <8b274e8b-ca1b-47a6-90f9-eb2c9d4a538e@web.de> Date: Tue, 30 Apr 2024 09:33:14 +0200 Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird To: Sungwoo Kim , linux-bluetooth@vger.kernel.org Cc: LKML , kernel-janitors@vger.kernel.org, Dan Carpenter , "Dave (Jing) Tian" , Johan Hedberg , Luiz Augusto von Dentz , Marcel Holtmann References: <20240430063209.584244-1-iam@sung-woo.kim> Subject: Re: [PATCH v3] Bluetooth: L2CAP: Fix slab-use-after-free in l2cap_connect() Content-Language: en-GB From: Markus Elfring In-Reply-To: <20240430063209.584244-1-iam@sung-woo.kim> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:QvHTTJRCPvNgpxwGrd1n/gHVdpelP5AGgJB+Cx7Am88MdC5hGOo 2mwAeUwHGVS+XCPonspE35PEzsPaApe94hAcBynnJ7GCfp/vT0s7xsasBEI0AS5SelaID1s aDo70ATno5bAcOMhAHGHe4BRViDwq5d5vKfb14rWiBb1X6gL73xbjim2FvCVpHEe69TPrGJ lIKBSzzCAMsWETn80R8Eg== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:SDzHgZwpg38=;uxcivH2DTMrR2XSBCJLrLol/OUT lHdQ/sOmsEO7kKMCaOu6SbuLXpdTX4aNSpvMOSswlXqIML8PRrdsmLgJr/XmLvVfQAEU3GTUi W0ersz6ZMJNGqH5A4olwFWo+SHcTjgjFA1NKwxxCRq/z1KqZivm3J7vD+tsyWFOolhV0T0BZ4 DxYtm2pyoijArs3Y3WMZ+tgI2ER178eaPd2Yl9W3J8aMvVjnXG+z2on1J+dVoBXefvNGVMWzb Xd291QhjI5+UCMzJG4ZwrDxh+ygxDai3WiI3iKAh0lPQ0xQ9QNpd3eJtTP3GryjPnP9b266hy LJbz5tjpUomPjSkBB/2Qx/ilo4vFjWR6TWY9jtlguqdCC4q6lIgMzu3xlE8f0XEx/pzIIlgtT xFTln/MTv3urzrQlY8yS74EyTJxv0RxfIqaVwt/zg+N+Qsqq59ZJxyr7/25OtF2WmHdQ8Knj+ pClv2Z2dG4f8WDOXwh2Ss08f/FWwzPBXErxkHED05JcXYm2D+19uDiNbLhF5AhHSO+de3fusN OUDsB3G2wgQkfNEmRjLMKveAEMdDPuDQk+1kYLovVBRSQfgxekWLRaK+y+md2c6qysrqRAX18 wfwcSl4KMuRei5rlX4+7sPWmm0+p08nh5FDrdxhi9FkFXlc89pqlX/mHd4xC51dr+yc0jLQ2E p+TPndSp3cUWHCskGEBT2tbltHuMH11QvNNFBINBtS81frCnGpammjaNy3XUi3dLSyXmuHjmv bHu/OPs+VEUs2McE8Mh94qAU+UcEXyx8dfuUAkJHCRwIc1N2aZgxM1tArnaTgXivcMKUCilCY hN0ft07K9i5t/OUXZr1QpDPKbjsNfvtv+628aOa+YKgno= > Extend a critical section to prevent chan from early freeing. =E2=80=A6 Such a data processing improvement is nice. Will an other distribution of email addresses over recipient lists be more= helpful? Can you imagine that the usage of the message field =E2=80=9CTo=E2=80=9D w= ould occasionally be more appropriate for subsequent patch communication? Regards, Markus