From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754655AbeDWKKN (ORCPT ); Mon, 23 Apr 2018 06:10:13 -0400 Received: from mail-it0-f71.google.com ([209.85.214.71]:53043 "EHLO mail-it0-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754511AbeDWKKC (ORCPT ); Mon, 23 Apr 2018 06:10:02 -0400 X-Google-Smtp-Source: AIpwx4/XBxcQJokGWCIWvBrLGyyt1Bclqw+cQshMOzT1UNHHfZEKznRXaaJ2sd1kH3TBxJ6hUYGv5Yhj3A1eMQWYHBSB54oT5td4 MIME-Version: 1.0 Date: Mon, 23 Apr 2018 03:10:01 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000af09f3056a813d2d@google.com> Subject: WARNING: kernel stack regs at (ptrval) in syzkaller has bad 'bp' value (ptrval) From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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=e073e4740cfbb3ae200b C reproducer: https://syzkaller.appspot.com/x/repro.c?id=6509307940044800 syzkaller reproducer: https://syzkaller.appspot.com/x/repro.syz?id=6027105183727616 Raw console output: https://syzkaller.appspot.com/x/log.txt?id=4763013630394368 Kernel config: https://syzkaller.appspot.com/x/.config?id=1808800213120130118 compiler: gcc (GCC) 8.0.1 20180413 (experimental) IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+e073e4740cfbb3ae200b@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): 0000000000445649 (0x445649) (ptrval): 0000000000000033 (0x33) (ptrval): 0000000000000216 (0x216) (ptrval): 00007f155536eda8 (0x7f155536eda8) (ptrval): 000000000000002b (0x2b) WARNING: kernel stack regs at (ptrval) in syzkaller547737:4493 has bad 'bp' value (ptrval) WARNING: kernel stack frame pointer at (ptrval) in syzkaller547737:4496 has bad 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.