From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f80.google.com (mail-oo1-f80.google.com [209.85.161.80]) (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 805673A1E8D for ; Fri, 26 Dec 2025 20:18:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.80 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766780303; cv=none; b=QFRf+aPpLGvzvlygROb6W9CvbJh1Mn2zA1odaMWvWNR//oZ8NmsHzktMiC2dV7Hu2V5eYNeUcrxzXgR8Ir6jvk7DkYkIu1fHdRQ8hKOdve6IvBigdN5TuGZ1fd7xEyRmkLaH4vZaGdFwRmKyFvsV+W02Tb8QHucwY+zTFwP5VF8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766780303; c=relaxed/simple; bh=h0YW76HQwllrg9YcIJwv7iPn8tk4GGanDS1RnyjZpk0=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=Xas2mVMI0KMViwTL5KGoDOR8pbdirjVas6cXtWz6z4edKdkXphdkHW18YIq708MSQGVRqQAXDJdJz6wOBjSg1PyNSYg+Dlq5GzW2lZHezRlTGd9DnuBGhRfiCK5WNx/+UcVELtA3UwJKttL5R6yjBVFldgiLT43H5/bMMNJNiLg= 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=209.85.161.80 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-oo1-f80.google.com with SMTP id 006d021491bc7-65742f8c565so13182405eaf.1 for ; Fri, 26 Dec 2025 12:18:21 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1766780300; x=1767385100; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=xjRWRRVLWipGhq2BVAZRGHCxff3tGCAwhsSHVuG/gag=; b=p/BuOUwd9LOAygb0d+q+K6oAmy8YsM13edR8qZ3gHVnhcad+JdTdYaziv3KDjri+6T RRSIGuWzSZvgqwty3U+mTucCkslsH6QD1siyPCvV3nlJ+C5QooShgFcZhrYJ7uKnjAvz TgaLstJSh5RnQ1Hs2WeGPePHqxTBl2nlNshIAOGkFeEcIoecJJQ5aBu3qi50w2M/CAGZ zFFdZZDCmOAG9zOvfPx3FqVFDX+keT+YjexNMLzUm8e0SdF+A0p44KBUM9Q9S0PYVD0j L/+lfNk2vAO0dE4umDDbXqdDXM1U2klj3nDMYFMvxxxWRUvO3Mjyw4+HOtZ8SbUGio2B J/GQ== X-Forwarded-Encrypted: i=1; AJvYcCXH1hDzHfEV9aYYXvwhDKTH5dZgE6lQ0M2kobDNwWrwtTt2OM2G6vOuV5uUg+Vn8syzEOubVqo4VckMahk=@vger.kernel.org X-Gm-Message-State: AOJu0YyP6ONYR70MygcNja3Sck14sdSc+lRkIgi8tieNRrJUMjjt5a5I YtZmashjCSi8/6TbN5rRJaX/xMXAxfEqDt2GXS4mrmZiTxn8UcLiYqERVWw/A7P9l/i/i+RUvTa 3QyHSWtYu//lUWeBEiHuncAGT+57SiOijbXXcNjDQzMOR9cMu0IPebIggcX8= X-Google-Smtp-Source: AGHT+IFXyIeEfOBRkqcawkdPNksH+hYqvS+uVDxBWbK6xd/oWHtUFibanaD4esGRhBvjiZsH2TedZty9VVvGxv7zp85Lyduw28DH Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:2288:b0:65b:34e8:baab with SMTP id 006d021491bc7-65d0ebeb877mr9909626eaf.72.1766780300579; Fri, 26 Dec 2025 12:18:20 -0800 (PST) Date: Fri, 26 Dec 2025 12:18:20 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <694eed8c.050a0220.35954c.007c.GAE@google.com> Subject: [syzbot] [wireless?] INFO: task hung in reg_todo (4) From: syzbot To: johannes@sipsolutions.net, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 9448598b22c5 Linux 6.19-rc2 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=111ad392580000 kernel config: https://syzkaller.appspot.com/x/.config?x=a94030c847137a18 dashboard link: https://syzkaller.appspot.com/bug?extid=8f72a490f8e8879ee7e6 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1007c3c2580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17d4808a580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/477361b600ee/disk-9448598b.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/d6a6291ae36e/vmlinux-9448598b.xz kernel image: https://storage.googleapis.com/syzbot-assets/0c0e810e0acf/bzImage-9448598b.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+8f72a490f8e8879ee7e6@syzkaller.appspotmail.com INFO: task kworker/0:0:9 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:0 state:D stack:23672 pid:9 tgid:9 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: events reg_todo Call Trace: context_switch kernel/sched/core.c:5256 [inline] __schedule+0x149b/0x4fd0 kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0x165/0x360 kernel/sched/core.c:6960 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7017 __mutex_lock_common kernel/locking/mutex.c:692 [inline] __mutex_lock+0x7e6/0x1350 kernel/locking/mutex.c:776 reg_todo+0x1c/0xa60 net/wireless/reg.c:3189 --- 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. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup