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 C479EC636D4 for ; Thu, 2 Feb 2023 15:27:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232963AbjBBP10 (ORCPT ); Thu, 2 Feb 2023 10:27:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45396 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232940AbjBBP1R (ORCPT ); Thu, 2 Feb 2023 10:27:17 -0500 Received: from mail-io1-xd46.google.com (mail-io1-xd46.google.com [IPv6:2607:f8b0:4864:20::d46]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 453B462791 for ; Thu, 2 Feb 2023 07:26:44 -0800 (PST) Received: by mail-io1-xd46.google.com with SMTP id z23-20020a6b6517000000b00718172881acso1286431iob.7 for ; Thu, 02 Feb 2023 07:26:44 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=xd2On2XmQn5CXKWHOS6M1UAV/maohIRlixrwDPpvrcY=; b=0Ok5bvMPn9HiCXp58llUBOqFZsMnFY1dTGTMmPiwAac+GH6kdlrWOX2aStYqeC5Xow AlkedAO9ikXnSQPad8hwlhbT202sb9a+hNRRYMTYGmKLbvRGiku+8KTN1G/uzSr+bnH0 fmzpWhKZbakZ8pFEffaBwCK7VXPBnpDJG+kY8AUhreWYUI153HhefS+fMbAG7wIB5xyo uXhSYDElCdpqlKyQ1y/ZXYlsZYoomVl+i7FUev4jRIOWm7HaDrR+Lpla+IUmTiFV+LWC ceNFw1Aw/7J8cLjtK2HMi0Bn2CU57WwDIFZUnadnBLTEzMiF/h8THOVBC5RtRk+TvBnQ rf/A== X-Gm-Message-State: AO0yUKWhkyxCbwLkqYszep5f6EzVUHvxxqIK4vRV5fpfzJiF14YVsYMx usOS7XJQcRheNWGWi+C29ZwvAlVgdSdZNosvk1d1HvACi9gR X-Google-Smtp-Source: AK7set+RSMHIsloLHmsFgFRR06WgZYSviB4PN9lEB99m4iCLWxYAr0lbcJfguHZuV4GIWhuLD8IDxZEXZDY9K4oqeabgMfD9oMxn MIME-Version: 1.0 X-Received: by 2002:a05:6602:358b:b0:71f:1cc6:e7ed with SMTP id bi11-20020a056602358b00b0071f1cc6e7edmr1445809iob.17.1675351539202; Thu, 02 Feb 2023 07:25:39 -0800 (PST) Date: Thu, 02 Feb 2023 07:25:39 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000005e400005f3b92d4a@google.com> Subject: [syzbot] WARNING: locking bug in process_one_work (4) From: syzbot To: boqun.feng@gmail.com, linux-kernel@vger.kernel.org, longman@redhat.com, mingo@redhat.com, peterz@infradead.org, syzkaller-bugs@googlegroups.com, will@kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: c96618275234 Fix up more non-executable files marked execu.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=152e2ff5480000 kernel config: https://syzkaller.appspot.com/x/.config?x=f11571733ab48ccb dashboard link: https://syzkaller.appspot.com/bug?extid=adc9fc92128d14593562 compiler: Debian clang version 13.0.1-6~deb11u1, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/fab8705c1650/disk-c9661827.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/b70b6b0c4b83/vmlinux-c9661827.xz kernel image: https://storage.googleapis.com/syzbot-assets/8b23433a6c65/bzImage-c9661827.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+adc9fc92128d14593562@syzkaller.appspotmail.com ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(1) WARNING: CPU: 1 PID: 71 at kernel/locking/lockdep.c:231 check_wait_context kernel/locking/lockdep.c:4729 [inline] WARNING: CPU: 1 PID: 71 at kernel/locking/lockdep.c:231 __lock_acquire+0xac2/0x1f60 kernel/locking/lockdep.c:5005 Modules linked in: CPU: 1 PID: 71 Comm: kworker/u4:4 Not tainted 6.2.0-rc5-syzkaller-00205-gc96618275234 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 Workqueue: events_unbound call_usermodehelper_exec_work RIP: 0010:hlock_class kernel/locking/lockdep.c:231 [inline] RIP: 0010:check_wait_context kernel/locking/lockdep.c:4729 [inline] RIP: 0010:__lock_acquire+0xac2/0x1f60 kernel/locking/lockdep.c:5005 Code: 43 0d 00 0f 85 2b fa ff ff 31 db 48 c7 c7 00 98 0d 8b 48 c7 c6 a0 9a 0d 8b 31 c0 e8 58 79 e7 ff 48 ba 00 00 00 00 00 fc ff df <0f> 0b e9 25 fa ff ff e8 52 9d d3 02 85 c0 0f 84 b1 06 00 00 48 c7 RSP: 0018:ffffc900020ff928 EFLAGS: 00010046 RAX: 88e28de359f5bd00 RBX: 0000000000000000 RCX: ffff888018e33a80 RDX: dffffc0000000000 RSI: 0000000080000001 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff8170be4d R09: ffffed1017324f5b R10: ffffed1017324f5b R11: 1ffff11017324f5a R12: 0000000000040000 R13: ffff888018e33a80 R14: 00000000000c1313 R15: ffff888018e34528 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002017f000 CR3: 0000000080fb5000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5668 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162 complete+0x24/0x1c0 kernel/sched/completion.c:32 process_one_work+0x81c/0xd10 kernel/workqueue.c:2289 worker_thread+0xb14/0x1330 kernel/workqueue.c:2436 kthread+0x266/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 --- This report 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 issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.