From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f71.google.com (mail-ot1-f71.google.com [209.85.210.71]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 80C942D8367 for ; Wed, 17 Dec 2025 05:40:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765950007; cv=none; b=j/ejMDZJJxmsUntwOHPbMH0gE0gE0Ze4boT+kstotsnPTVwwArjtqzbmRbqLZFGGPNJASdfc5da29e1EyHoBGXYumgkkco9ptvMYC3ymPmB5JMIfs0/h4qtCBxt7zIhas2Qtvh7ObiH5k7NQ6YhLRBzSSQklRBtY3JtqGOTRp7Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765950007; c=relaxed/simple; bh=7CceJyZsZ6tCscZ0Ckin0MT71wdFqQqBOj0QptbnasM=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=u3cKv6lFOIWEkbI0ldKSU0bcPZoZwovDPjq6RGasTc9XdzTFIZ+vH1uaFoOFKWT3PMFJEGgNbsArnchlydi89qHZW7iUolApEHM98s3plg/7rgOGd+mGiEOkakZOI3EsmVLkg1Ca3ei/fTLAL7DbUHsfcRrnGcRa39/TI6K6/Q8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.210.71 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-ot1-f71.google.com with SMTP id 46e09a7af769-7cac9cda2d0so10990194a34.0 for ; Tue, 16 Dec 2025 21:40:04 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1765950003; x=1766554803; 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=TorzsaVh02SY3ie724HTccZ++0u4eafTA0CwflD9r6o=; b=G4FzPWesif//tdAt11qHscZLjTHpPGlai9bmNfVUCGb0tR8o21z7c5biMtB6mPxU2C PZI5YVriYIZ5grKB8A71lduqtAYmATjLqs6oQIQilCksLDXK9zOE5ojdMincV4+SU77i PDz4mTFDje2+Alqcgs0qX5BtT1nQ2V6DDhVWq2QTrbdZw1TuIADa26Zthug/r6GqAzXG OEagkI61LndIVWzzcuPAGGLo24xq4QkWp7a9C+9KOOk9cHbvzQy+XoDJHUg9B2DPTCR1 ISjK13vzSg3TW/jVHtOjMzHU95+te6YiEhmjbayOWT691X2pi6E/m6j1VYnreo5MgTr6 1zhg== X-Forwarded-Encrypted: i=1; AJvYcCWloRZNCnlfAqembA5BG93R4Rjhp3SyIicefNcKEZ9E2i7VxQIfZwcvpHurM99ukzETB2D9SlYtD+2S+LY=@vger.kernel.org X-Gm-Message-State: AOJu0YzXno/9NzPnAZrnRPb48ZIX2tjMD0/7cxv3xdkQKqE1EdSvVMj7 +pn+CQM2sdMU8frlMdYz7QCh8uRAtj8vgHTHzEj+Ch4djwvUivi1JOSjyOI+FUWpI2l6zQ0QGH0 tdM+sot32shAoCguiJU2XpxZzQ/340zy8Yju+Pn8jxZJmMAIqTYKH9qt9eJY= X-Google-Smtp-Source: AGHT+IEAY1B57f2udgiE6/3sJOcoJBTgw6pLKCYJ/RDPIVQKJCvzeCoCfMphgt5sVqP4SagrfQRBrUA4Vm0jt0cjAKR86cVE9LSb Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a4a:edc7:0:b0:659:9a49:9023 with SMTP id 006d021491bc7-65b452c8331mr6669313eaf.80.1765950003330; Tue, 16 Dec 2025 21:40:03 -0800 (PST) Date: Tue, 16 Dec 2025 21:40:03 -0800 In-Reply-To: <20251217051654.115173-1-kartikey406@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69424233.a70a0220.25eec0.0015.GAE@google.com> Subject: Re: [syzbot] [net?] [nfc?] WARNING in nfc_dev_down From: syzbot To: kartikey406@gmail.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: BUG: MAX_LOCKDEP_KEYS too low! BUG: MAX_LOCKDEP_KEYS too low! turning off the locking correctness validator. CPU: 0 UID: 0 PID: 24046 Comm: syz.4.2543 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 register_lock_class+0x2dc/0x320 kernel/locking/lockdep.c:1332 __lock_acquire+0xae/0x2cf0 kernel/locking/lockdep.c:5112 lock_acquire+0x117/0x340 kernel/locking/lockdep.c:5868 touch_wq_lockdep_map+0xcb/0x180 kernel/workqueue.c:3940 __flush_workqueue+0x121/0x14b0 kernel/workqueue.c:3982 drain_workqueue+0xd3/0x390 kernel/workqueue.c:4146 destroy_workqueue+0xbb/0xc60 kernel/workqueue.c:5903 nci_unregister_device+0x8b/0x240 net/nfc/nci/core.c:1315 virtual_ncidev_close+0x59/0x90 drivers/nfc/virtual_ncidev.c:172 __fput+0x45b/0xa80 fs/file_table.c:468 task_work_run+0x1d4/0x260 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:44 [inline] exit_to_user_mode_loop+0xff/0x4f0 kernel/entry/common.c:75 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline] do_syscall_64+0x2d0/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5494d2f749 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd69399a18 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007f5494f87da0 RCX: 00007f5494d2f749 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007f5494f87da0 R08: 0000000000000000 R09: 0000000469399d0f R10: 000000000003fdb4 R11: 0000000000000246 R12: 0000000000065bb6 R13: 00007f5494f86180 R14: ffffffffffffffff R15: 00007ffd69399b30 Tested on: commit: ea1013c1 Merge tag 'bpf-fixes' of git://git.kernel.org.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=147aa31a580000 kernel config: https://syzkaller.appspot.com/x/.config?x=1f2b6fe1fdf1a00b dashboard link: https://syzkaller.appspot.com/bug?extid=4ef89409a235d804c6c2 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 patch: https://syzkaller.appspot.com/x/patch.diff?x=12071d92580000