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=-7.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 9F888C4743D for ; Tue, 8 Jun 2021 08:53:53 +0000 (UTC) Received: from mother.openwall.net (mother.openwall.net [195.42.179.200]) by mail.kernel.org (Postfix) with SMTP id C3B56610C7 for ; Tue, 8 Jun 2021 08:53:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C3B56610C7 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=oracle.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kernel-hardening-return-21292-kernel-hardening=archiver.kernel.org@lists.openwall.com Received: (qmail 24477 invoked by uid 550); 8 Jun 2021 08:53:46 -0000 Mailing-List: contact kernel-hardening-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Received: (qmail 24443 invoked from network); 8 Jun 2021 08:53:45 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=date : from : to : cc : subject : message-id : references : mime-version : content-type : in-reply-to; s=corp-2020-01-29; bh=uXsfBS09h5r8atqX2PNh5Ig45l4lwTr4pwZjL/r3r08=; b=rIHqGiszTwgFXYU/29HrTXFSuOgR9+nwuryBFW68Xibj9DLPsIar+VXv/BI9MdswqoYW 2qR4lyled93+VhADteVmUs9HeKBOAQyMh8qnNO8Fr5XK8r1U1S4AZ0uFyUc4sgJY9EIf +XrbhyeczsMbcIjlnA9yYyf/LrrpIKgiANecaz/VPhzenvG0jKqlG1h1YvJYHJEEt7RH mscM9rM8T6aLdp334Non989aCGXV6XRsWAl6PMNBuuz3mBtdfATRf1MNq5iz+iZ0jnLw MwQZc+pA5q0zFWnC/kVAdl3hiEU70Or7jAUNXolAmXEZy+puOr+cvoJseSgdfyJFalN6 Vw== Date: Tue, 8 Jun 2021 11:53:10 +0300 From: Dan Carpenter To: "Jason A. Donenfeld" Cc: SyzScope , syzbot , davem@davemloft.net, johan.hedberg@gmail.com, kuba@kernel.org, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, marcel@holtmann.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, kernel-hardening@lists.openwall.com Subject: Re: KASAN: use-after-free Read in hci_chan_del Message-ID: <20210608085310.GA1955@kadam> References: <000000000000adea7f05abeb19cf@google.com> <2fb47714-551c-f44b-efe2-c6708749d03f@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) X-Proofpoint-GUID: 9xkxAKvdty5E81yk4zbMACfpHhdkZeVE X-Proofpoint-ORIG-GUID: 9xkxAKvdty5E81yk4zbMACfpHhdkZeVE This SyzScope stuff could be good in theory and it could be something useful with more work. But in real life terms do you know anyone who looked at "use-after-free Read in hci_chan_del" and thought, "Oh that sounds totally harmless." regards, dan carpenter