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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,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 0DB37C432C0 for ; Mon, 18 Nov 2019 06:59:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CEB8D20656 for ; Mon, 18 Nov 2019 06:59:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726970AbfKRG7C (ORCPT ); Mon, 18 Nov 2019 01:59:02 -0500 Received: from mail-il1-f199.google.com ([209.85.166.199]:54456 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726455AbfKRG7B (ORCPT ); Mon, 18 Nov 2019 01:59:01 -0500 Received: by mail-il1-f199.google.com with SMTP id t67so15502856ill.21 for ; Sun, 17 Nov 2019 22:59:01 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=aF2hkb+uDPuWocQ0k+VDFxZ3uHqIeoh49sdaxIzLqYY=; b=T9chuOthCehPQZsWmIz8FLC+M5ykW7b3d5rCID9JnbdL66cv+P/IVwflbX2mBoYwln AN8ZEvSinRqwFCKgg+0JRrM71GF7yYH6fbC+hp5iWssQkwfWTe2RZZGb+nSt6sTjEN7C QrfRwDdCMvOvculiqZJKCsjPzOziq3cpE7zoY6lpQI+VGsL8Jyfnvb9edDNCf4wrZZeo frFgWHe9WsjNe18LRc9skny7F4B8CBJo99vMY34GfzbzuLTcpMkZWxD8sE6PI5je8OS9 CEgXgOTOoqQjKHi4gfXjKWnyBQjoDDHKjHJgjKMvv3QspCw3OZ0xuqn6msgblHqi5k5O dwyg== X-Gm-Message-State: APjAAAUo9BL7KQu0IYWuBRUEDfm7v6CCjcMyChegKI0KuILK44r10z41 yQJ8kH3dyQ3YttEZcRbl6z3zF0lCVWcbJrpOOTJFxDkN4AGH X-Google-Smtp-Source: APXvYqysoNyeEKRWypMnt+cdrFAOn38eJTXWLtV2lRmkpvPHZzOvepD6Or4PJwYns/Nexla5W6HU5q/UkUKWl9GBcKEhVFpMQAml MIME-Version: 1.0 X-Received: by 2002:a5d:8854:: with SMTP id t20mr12183485ios.301.1574060340893; Sun, 17 Nov 2019 22:59:00 -0800 (PST) Date: Sun, 17 Nov 2019 22:59:00 -0800 In-Reply-To: <0000000000002e4a260576c1589d@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000795dd20597997b1c@google.com> Subject: Re: KASAN: use-after-free Read in relay_switch_subbuf From: syzbot To: akpm@linux-foundation.org, bunk@kernel.org, ebiggers@google.com, gregkh@linuxfoundation.org, jannh@google.com, jrdr.linux@gmail.com, keescook@chromium.org, linux-kernel@vger.kernel.org, linux@dominikbrodowski.net, mawilcox@microsoft.com, mojha@codeaurora.org, rientjes@google.com, sudipm.mukherjee@gmail.com, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk, yuehaibing@huawei.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this bug to: commit 21c75ad65f8e5213ec542d99c259ffe3e3671e81 Author: YueHaibing Date: Thu Mar 21 08:26:28 2019 +0000 parport_cs: Fix memory leak in parport_config bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11480c6ae00000 start commit: 26bc6721 Merge tag 'for-linus-2019-11-05' of git://git.ker.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=13480c6ae00000 console output: https://syzkaller.appspot.com/x/log.txt?x=15480c6ae00000 kernel config: https://syzkaller.appspot.com/x/.config?x=8c5e2eca3f31f9bf dashboard link: https://syzkaller.appspot.com/bug?extid=29093015c21333d1c46d syz repro: https://syzkaller.appspot.com/x/repro.syz?x=132afbcce00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=179a1f8ae00000 Reported-by: syzbot+29093015c21333d1c46d@syzkaller.appspotmail.com Fixes: 21c75ad65f8e ("parport_cs: Fix memory leak in parport_config") For information about bisection process see: https://goo.gl/tpsmEJ#bisection