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 EB396CE7A95 for ; Mon, 25 Sep 2023 11:55:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229905AbjIYLzh (ORCPT ); Mon, 25 Sep 2023 07:55:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54290 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229456AbjIYLze (ORCPT ); Mon, 25 Sep 2023 07:55:34 -0400 Received: from mail-oi1-f197.google.com (mail-oi1-f197.google.com [209.85.167.197]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1BBADDA for ; Mon, 25 Sep 2023 04:55:27 -0700 (PDT) Received: by mail-oi1-f197.google.com with SMTP id 5614622812f47-3ae214a02a6so12244854b6e.3 for ; Mon, 25 Sep 2023 04:55:27 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1695642926; x=1696247726; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=TJysYUBTudzCJaC5ycCUZJm2e0YF/I5kcWtF15e4Fdc=; b=HNFK61kkWKQIx33Vhpjk9n300yKnXt9FUGA2RW4qdrMR2WIrLhiQF8IqhOUVpGLgfX RU5b0UKdBJ1f7lfvwftTKreHeKZHYNJyOW7bOuYf4+CZGj3vfq6f95VIHc+NriCJ/8jK ShdpM/1FqguiRE387p+GF4s9L96PjqPqLjAgLqo/tPldc03EKSrLhQtdUK2oAr5Iajz5 wnMQPowgj45TkFv2ENr3lj3gT0qKq8KpKPcXA7bvBsyQzmi0VPqIMoqqzCmh/d9T5VXH w9nQ7/siz/GFB7Zwpy2shxJjnk46lBVBB4ymCMqMH0Z3I+DF+466e6LCyyWey52nyluW oN3g== X-Gm-Message-State: AOJu0YxEGdiwucCIeI4f4Vl20P4imKIrie2XjF25T+ka9Fif8EiQUwqK Cg2kzLxOqnRiVm/33Qupxdhx16mGeBxbuhRmKNhP8jeOqrmx X-Google-Smtp-Source: AGHT+IFAcAn45kItchAUgSWnxHagzXzt3p5LJ66zKO8Mh4B2rhrC/tnR+O9EXoGAIhW/7FdiZUGHPECMYUufV71m7IQn1sjj2jDB MIME-Version: 1.0 X-Received: by 2002:a05:6808:2199:b0:3ae:c95:ad2c with SMTP id be25-20020a056808219900b003ae0c95ad2cmr3860207oib.0.1695642926434; Mon, 25 Sep 2023 04:55:26 -0700 (PDT) Date: Mon, 25 Sep 2023 04:55:26 -0700 In-Reply-To: <00000000000035aab005ec690a00@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000004bd00c06062da279@google.com> Subject: Re: [syzbot] [serial?] KASAN: use-after-free Read in gsm_cleanup_mux From: syzbot To: daniel.starke@siemens.com, gregkh@linuxfoundation.org, hdanton@sina.com, jirislaby@kernel.org, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this issue to: commit 01aecd917114577c423f07cec0d186ad007d76fc Author: Daniel Starke Date: Fri Jul 1 06:16:45 2022 +0000 tty: n_gsm: fix tty registration before control channel open bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10d431ea680000 start commit: a4412fdd49dc error-injection: Add prompt for function erro.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=12d431ea680000 console output: https://syzkaller.appspot.com/x/log.txt?x=14d431ea680000 kernel config: https://syzkaller.appspot.com/x/.config?x=cc4b2e0a8e8a8366 dashboard link: https://syzkaller.appspot.com/bug?extid=893c55305230e719a203 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12b1ca83880000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1023c5e3880000 Reported-by: syzbot+893c55305230e719a203@syzkaller.appspotmail.com Fixes: 01aecd917114 ("tty: n_gsm: fix tty registration before control channel open") For information about bisection process see: https://goo.gl/tpsmEJ#bisection