From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755263AbeDWK45 (ORCPT ); Mon, 23 Apr 2018 06:56:57 -0400 Received: from mail-pf0-f174.google.com ([209.85.192.174]:36657 "EHLO mail-pf0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754952AbeDWK4v (ORCPT ); Mon, 23 Apr 2018 06:56:51 -0400 X-Google-Smtp-Source: AIpwx49jBNJ02hbZMbPzMJGQktV9LUug975gu3zDz8H9i6kDkYez+nEc1mfSS3MvzFbEuruJtMN+XIq3sfg7WQrR3po= MIME-Version: 1.0 In-Reply-To: <000000000000ac17c0056a813dac@google.com> References: <000000000000ac17c0056a813dac@google.com> From: Dmitry Vyukov Date: Mon, 23 Apr 2018 12:56:29 +0200 Message-ID: Subject: Re: WARNING: kernel stack frame pointer at (ptrval) in syzkaller has bad value (ptrval) To: syzbot Cc: LKML , syzkaller-bugs Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Apr 23, 2018 at 12:10 PM, syzbot wrote: > Hello, > > syzbot hit the following crash on upstream commit > 5ec83b22a2dd13180762c89698e4e2c2881a423c (Sun Apr 22 19:13:04 2018 +0000) > Merge tag '4.17-rc1-SMB3-CIFS' of git://git.samba.org/sfrench/cifs-2.6 > syzbot dashboard link: > https://syzkaller.appspot.com/bug?extid=e81cee75d9f3fe72ec33 > > C reproducer: https://syzkaller.appspot.com/x/repro.c?id=4545675937185792 > syzkaller reproducer: > https://syzkaller.appspot.com/x/repro.syz?id=6597511200374784 > Raw console output: > https://syzkaller.appspot.com/x/log.txt?id=4986591978192896 > Kernel config: > https://syzkaller.appspot.com/x/.config?id=1808800213120130118 > compiler: gcc (GCC) 8.0.1 20180413 (experimental) #syz dup: WARNING: kernel stack regs at (ptrval) in syzkaller has bad 'bp' value (ptrval) > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+e81cee75d9f3fe72ec33@syzkaller.appspotmail.com > It will help syzbot understand when the bug is fixed. See footer for > details. > If you forward the report, please keep this part and the footer. > > (ptrval): 000000000043fe19 (0x43fe19) > (ptrval): 0000000000000033 (0x33) > (ptrval): 0000000000000216 (0x216) > (ptrval): 00007ffd01ce4bd8 (0x7ffd01ce4bd8) > (ptrval): 000000000000002b (0x2b) > WARNING: kernel stack frame pointer at (ptrval) in > syzkaller601944:4492 has bad value (ptrval) > WARNING: kernel stack regs at (ptrval) in syzkaller601944:4492 has > bad 'bp' value (ptrval) > > > --- > This bug is generated by a dumb bot. It may contain errors. > See https://goo.gl/tpsmEJ for details. > Direct all questions to syzkaller@googlegroups.com. > > syzbot will keep track of this bug report. > If you forgot to add the Reported-by tag, once the fix for this bug is > merged > into any tree, please reply to this email with: > #syz fix: exact-commit-title > If you want to test a patch for this bug, please reply with: > #syz test: git://repo/address.git branch > and provide the patch inline or as an attachment. > To mark this as a duplicate of another syzbot report, please reply with: > #syz dup: exact-subject-of-another-report > If it's a one-off invalid bug report, please reply with: > #syz invalid > Note: if the crash happens again, it will cause creation of a new bug > report. > Note: all commands must start from beginning of the line in the email body. > > -- > You received this message because you are subscribed to the Google Groups > "syzkaller-bugs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to syzkaller-bugs+unsubscribe@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/syzkaller-bugs/000000000000ac17c0056a813dac%40google.com. > For more options, visit https://groups.google.com/d/optout.