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 1F28DC04E69 for ; Mon, 14 Aug 2023 13:13:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229746AbjHNNNH (ORCPT ); Mon, 14 Aug 2023 09:13:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52398 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229699AbjHNNMf (ORCPT ); Mon, 14 Aug 2023 09:12:35 -0400 Received: from mail-pf1-f200.google.com (mail-pf1-f200.google.com [209.85.210.200]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4D2F5E6E for ; Mon, 14 Aug 2023 06:12:34 -0700 (PDT) Received: by mail-pf1-f200.google.com with SMTP id d2e1a72fcca58-68790b952bbso4833155b3a.0 for ; Mon, 14 Aug 2023 06:12:34 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692018754; x=1692623554; 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=GkUsQ1wrjvx9w9pGAMLpP0B4qOOaUFlPw9+26kywtpU=; b=ULd+u2WCCxTUlAG9KNiGJThQ0Cl/76CSbykkSKauOrxauAeJh3++ggyPMd4djZRVoQ WaIe/5+xkYWsW1pRCAm01eYJvvBtR7s9/BDXOcsUvcMsuvZPegFK5vYqeO33TlyAuzYY l+PLMkdFFvy5z1VEybjflQmbUe3/wStpvARppimiPigwLsCTU72hFWrWLzSEPM4wtnDP Ur+hC1zh45brqC5YIiJK0+fM0CI9nlA8gfwcTdhLHuNP2pAn+CEOTZj2BhJno0rUwsOs b/4xzPzmZWW3Jt3RgE2Gr7xA4e/jJSvn7EzAjDLmkdvsZYQ4t3a8T9o0DZKBKDthoUpk Youw== X-Gm-Message-State: AOJu0Yx1A+4UxLmy6MiCwi4XTL7N/e55SziRKzVK4ygU3hosjwRFJCh9 siP7mfivx4IrFz0Ix8rT0jXKMPz8gCtEBrduWGX5TSpcW9M2 X-Google-Smtp-Source: AGHT+IHzL2RazM92wVEoVMl//dQglkomTDOyKJBBJbRtQJItDXTcwMv7/H4PJ0Ai13M+1wyKNN48sJ8q3IRSuJbMMgIydjW36kOe MIME-Version: 1.0 X-Received: by 2002:a05:6a00:2d13:b0:682:24c1:2951 with SMTP id fa19-20020a056a002d1300b0068224c12951mr4397426pfb.0.1692018753818; Mon, 14 Aug 2023 06:12:33 -0700 (PDT) Date: Mon, 14 Aug 2023 06:12:33 -0700 In-Reply-To: <20230814125546.1492-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000c6570d0602e1d030@google.com> Subject: Re: [syzbot] [dri?] [reiserfs?] WARNING: bad unlock balance in vkms_vblank_simulate From: syzbot To: hdanton@sina.com, linux-kernel@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 Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: BUG: unable to handle kernel paging request in corrupted BUG: unable to handle page fault for address: 000000000000ff01 #PF: supervisor instruction fetch in kernel mode #PF: error_code(0x0010) - not-present page PGD 68064067 P4D 68064067 PUD 6806d067 PMD 0 Oops: 0010 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5037 Comm: kworker/1:3 Not tainted 6.5.0-rc5-next-20230808-syzkaller-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 Workqueue: 0x0 (events) RIP: 0010:0xff01 Code: Unable to access opcode bytes at 0xfed7. RSP: 0018:ffffc90003b2fc60 EFLAGS: 00010086 RAX: ffff888024685940 RBX: 000000000000ff01 RCX: 0000000000000000 RDX: ffff888021963b80 RSI: ffffffff812d721d RDI: 0000000000000007 RBP: 0000000100040020 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000100040020 R13: 000000000000ff01 R14: 0000000100040020 R15: 000000000000ff01 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000ff01 CR3: 000000001ef98000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: Modules linked in: CR2: 000000000000ff01 ---[ end trace 0000000000000000 ]--- RIP: 0010:0xff01 Code: Unable to access opcode bytes at 0xfed7. RSP: 0018:ffffc90003b2fc60 EFLAGS: 00010086 RAX: ffff888024685940 RBX: 000000000000ff01 RCX: 0000000000000000 RDX: ffff888021963b80 RSI: ffffffff812d721d RDI: 0000000000000007 RBP: 0000000100040020 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000100040020 R13: 000000000000ff01 R14: 0000000100040020 R15: 000000000000ff01 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000ff01 CR3: 000000001ef98000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Tested on: commit: 71cd4fc4 Add linux-next specific files for 20230808 git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git console output: https://syzkaller.appspot.com/x/log.txt?x=166b9763a80000 kernel config: https://syzkaller.appspot.com/x/.config?x=e36b5ba725f7349d dashboard link: https://syzkaller.appspot.com/bug?extid=5671b8bcd5178fe56c23 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 patch: https://syzkaller.appspot.com/x/patch.diff?x=10060e27a80000