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=-8.6 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_PASS,URIBL_BLOCKED,USER_IN_DEF_DKIM_WL 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 EAF0CC282C4 for ; Mon, 4 Feb 2019 08:20:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BC585214DA for ; Mon, 4 Feb 2019 08:20:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="MGYzjANM" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727756AbfBDIU3 (ORCPT ); Mon, 4 Feb 2019 03:20:29 -0500 Received: from mail-it1-f194.google.com ([209.85.166.194]:51907 "EHLO mail-it1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726894AbfBDIU2 (ORCPT ); Mon, 4 Feb 2019 03:20:28 -0500 Received: by mail-it1-f194.google.com with SMTP id w18so19180339ite.1 for ; Mon, 04 Feb 2019 00:20:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=Am2O3i+oQQSGfLMLXg4ZnpoSIYOB0PsdVvbAcomlW2I=; b=MGYzjANMxDwNC1YDWGk7Dd4N4dnFgFR5XJLb0Y7vihSPhRQw3Ta99S7qASrYxjkpRX 7lBRzCUDj6bK2Y6ZPoWLSydZndc2mktamyUE2bYcRqE+JNQAa7VPuXorzJCJnOcuD+fd heMJsexmORVQCStfsTpK2FmCl1Ltff7QCDLrsd+FEQ9GbE9mlH6OeueJdNAvTWsWwzN0 ZfBHMsC5f1sGQyhNJihe8J8jmAMvoomeBH89Mo02TnHC9RudEQtvNSkm5Tk5pMbApCFq GbfeyDQ1unrYsxvhvQsKtsXA2r2NddwIAit/OB67LPRWXTgrxUEIErkBJ9EHImwNeprm PDBw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Am2O3i+oQQSGfLMLXg4ZnpoSIYOB0PsdVvbAcomlW2I=; b=G8vsvCExPmjSjh1ZdQXdS+YELwrzXKT8Q0QJks+1mWusWeCxfVCWXn3hrk76C5xC39 NvB0NfgpHq0NXejSKcUh+EcVPe8K4qXrk4aq0zp7wIWCk/Yemgy2g5QrXxNP7UXn47z8 hp6tmLyGekX405VXyuYi5kd0KNUwqtrm6nhg34pOnTVqnzxtXMANtNUoidqplGX50NQT TWhyRBNsPRg+xS1fWx5Cuk9p9R6lM3GxUbWuGvujsNObPhfELbnyN57pbbOe91aN2CYI mVIjhGM2gv9fuOiGKJFs67w/rcCTGDQPEmJi/5C6CRK9HfZ/+57giNiyAkPHFKHajc0J U0uw== X-Gm-Message-State: AHQUAuY/gyNXfiLPJo1XJ1FS8egtnCqgL1RtuNle1LuGUrRI9yNz9BuY Dn0W9xOObhWfe/E+bNTulzhFtcNclawe4QwVGb20qQ== X-Google-Smtp-Source: AHgI3IYtZ6Z2Co+M1yICymW1dCl2QTQydgLaKwkPkYnRZqBFb+2Y95VopA7t/DreKbc4h+ZY0YsOdFD1BOPST3nC2NI= X-Received: by 2002:a24:f14d:: with SMTP id q13mr7312592iti.166.1549268427827; Mon, 04 Feb 2019 00:20:27 -0800 (PST) MIME-Version: 1.0 References: <000000000000dc52b305810d0f49@google.com> In-Reply-To: <000000000000dc52b305810d0f49@google.com> From: Dmitry Vyukov Date: Mon, 4 Feb 2019 09:20:16 +0100 Message-ID: Subject: Re: linux-next boot error: can't ssh into the instance (2) To: syzbot , David Howells , Al Viro , linux-fsdevel Cc: LKML , syzkaller-bugs Content-Type: text/plain; charset="UTF-8" Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On Mon, Feb 4, 2019 at 9:13 AM syzbot wrote: > > Hello, > > syzbot found the following crash on: > > HEAD commit: 66d54fa79f95 Add linux-next specific files for 20190204 > git tree: linux-next > console output: https://syzkaller.appspot.com/x/log.txt?x=17823b28c00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=f0f6544db42451b4 > dashboard link: https://syzkaller.appspot.com/bug?extid=94522064b07f06df116d > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > > Unfortunately, I don't have any reproducer for this crash yet. > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+94522064b07f06df116d@syzkaller.appspotmail.com [ 6.272518][ T1] BUG: KASAN: global-out-of-bounds in fs_validate_description+0x109/0x6e9 Probably introduced by: commit 82685adaccb3e756d04161ebfc9d188b57def10c Author: David Howells Date: Thu Nov 1 23:07:24 2018 +0000 vfs: Add configuration parser helpers > --- > This bug is generated by a bot. It may contain errors. > See https://goo.gl/tpsmEJ for more information about syzbot. > syzbot engineers can be reached at syzkaller@googlegroups.com. > > syzbot will keep track of this bug report. See: > https://goo.gl/tpsmEJ#bug-status-tracking for how to communicate with > syzbot.