From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f80.google.com (mail-ot1-f80.google.com [209.85.210.80]) (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 19426316902 for ; Mon, 8 Dec 2025 07:19:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.80 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765178368; cv=none; b=oH2791Afy29xlRqwYKGmZi8EGBLgLw2QmIx8hvZWGw/db9Sx1IBismN2sL7HcZVnAmVhF2wVLbkR+1QQDlnVkAyDvZEeZ27d0NpNLi9NBrW6EhYpCWqTdhoYOg3RgxdnhCMsQkQie6JbzX0uq6PXRlXg+/qJtVWMCOClsv/e7AQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765178368; c=relaxed/simple; bh=jUiCi6vpMh4NMvjftik+kb4DDW/ExSQe6dnXuHXfifA=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=Xb/0GePP2sUlOnOe3rmpZnWgWM3WKDQNtzr6vKorAi75CQKcNssqshb11+clyVYqY2h2XDEQZzQJCDdq8Xr7lbqrlc/x8k7YaPPxCjPfhWcuLzn+yQ+oXHCEC16Glk+H82AOSE8oH9oDKsjp5Gk7dzYP3RFE4xXzGqjqsekZxHM= 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=209.85.210.80 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-ot1-f80.google.com with SMTP id 46e09a7af769-7c673f5f4b6so10610819a34.1 for ; Sun, 07 Dec 2025 23:19:26 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1765178366; x=1765783166; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=/X4uy5cCt6EvB7PbaeeAWQi2Cx3kHuGZ5vabxtqo5S0=; b=wYI2c9z99RLKCvRxMJ9Pob2cFe/6x07DxRkKSavceC3urBagduJhkIfJtcjthE6Y+S Jna02a8dgLDknxNvrO4A7FCJY5zcKEY4HTZ5Am+XK6+zJ2a/gn1Hz2ffGrJ7ed6pseZZ vdGrrblmQMQ7NmGZZn0IPLVYfxdjACaMpNFi3ImvOnRcrjRCI6KEqSvRC76/PqlgVp7R urSlQVyoyxKB5zLK+3we0lxXzWuuiEeP3zVm2TqVymL82IlBbUlAE0xkGOBRvItgQrP2 mj3c65CF1JemBcH1+aLIZuMxerU8rSUHhEbAiJDsoWWsJsjKjjpTn9XCI2MOoIkJ56un kEpw== X-Forwarded-Encrypted: i=1; AJvYcCVhkoNnQ6SxTCmu8hsTO2WPtf4Sb/CbQQl7b/PbAMP0wYHkfvSRUU1R0j7G9CeQ0nlZGP9whjnzd9DP5bVfTA==@vger.kernel.org X-Gm-Message-State: AOJu0Yy95YZQt1kd7ReyKegbHUfI4vaRbL/qyATlCi0U9vx5AY5Z2D2c fTBRLNzwIInCKS9G+vjOZRcJpj7bsRv+f4gfYkw5uljBPxG1ToypoVcclGSq0F/FeS3gBLp/tH2 PHV+I+n3HYCwugSkSgGN8jqN56RxwKamb66WbWA0bvdobOuKjf2T8uXrnDCg= X-Google-Smtp-Source: AGHT+IGPivsQZT7CodMUGdcsXTj0cIwIzEeAz8yULlTPsyn2Nw8Var2gRHrbvHBqcRo1w+mYSwFFm+4lOujz0UXEsoRwIA5FpNWR Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:829:b0:659:9a49:8ec9 with SMTP id 006d021491bc7-6599a97b0fcmr2683176eaf.77.1765178366254; Sun, 07 Dec 2025 23:19:26 -0800 (PST) Date: Sun, 07 Dec 2025 23:19:26 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69367bfe.a70a0220.38f243.008d.GAE@google.com> Subject: [syzbot] [wireless?] WARNING in rfkill_global_led_trigger_worker 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: a619fe35ab41 Merge tag 'v6.19-p1' of git://git.kernel.org/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=15436ab4580000 kernel config: https://syzkaller.appspot.com/x/.config?x=fbe15908ba3bc627 dashboard link: https://syzkaller.appspot.com/bug?extid=3746f1566ec44b3eef97 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/a17853f8cb2f/disk-a619fe35.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/6be5ad373796/vmlinux-a619fe35.xz kernel image: https://storage.googleapis.com/syzbot-assets/fb35e3d02a3b/bzImage-a619fe35.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+3746f1566ec44b3eef97@syzkaller.appspotmail.com ------------[ cut here ]------------ rtmutex deadlock detected WARNING: kernel/locking/rtmutex.c:1674 at 0x0, CPU#1: kworker/1:0/31 Modules linked in: CPU: 1 UID: 0 PID: 31 Comm: kworker/1:0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Workqueue: events rfkill_global_led_trigger_worker RIP: 0010:rt_mutex_handle_deadlock+0x21/0xb0 kernel/locking/rtmutex.c:1674 Code: 90 90 90 90 90 90 90 90 90 41 57 41 56 41 55 41 54 53 83 ff dd 0f 85 86 00 00 00 48 89 f7 e8 a6 3b 01 00 48 8d 3d ef c2 19 04 <67> 48 0f b9 3a 4c 8d 3d 00 00 00 00 65 48 8b 1c 25 08 f0 a9 91 4c RSP: 0018:ffffc90000a5f810 EFLAGS: 00010286 RAX: 0000000080000000 RBX: ffffc90000a5f8a0 RCX: 0000000000000000 RDX: 0000000000000006 RSI: ffffffff8cde6eea RDI: ffffffff8edc7190 RBP: ffffc90000a5f9b8 R08: ffffffff8ed95177 R09: 1ffffffff1db2a2e R10: dffffc0000000000 R11: fffffbfff1db2a2f R12: 1ffff9200014bf10 R13: ffffffff8ac2a989 R14: ffffffff8eb737a0 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888126e81000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2e00bff8 CR3: 000000007d9a6000 CR4: 00000000003526f0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083 DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: __rt_mutex_slowlock kernel/locking/rtmutex.c:1734 [inline] __rt_mutex_slowlock_locked kernel/locking/rtmutex.c:1760 [inline] rt_mutex_slowlock+0x666/0x6b0 kernel/locking/rtmutex.c:1800 __rt_mutex_lock kernel/locking/rtmutex.c:1815 [inline] __mutex_lock_common kernel/locking/rtmutex_api.c:534 [inline] mutex_lock_nested+0x16a/0x1d0 kernel/locking/rtmutex_api.c:552 rfkill_global_led_trigger_worker+0x27/0xd0 net/rfkill/core.c:182 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xad1/0x1770 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 ---------------- Code disassembly (best guess): 0: 90 nop 1: 90 nop 2: 90 nop 3: 90 nop 4: 90 nop 5: 90 nop 6: 90 nop 7: 90 nop 8: 90 nop 9: 41 57 push %r15 b: 41 56 push %r14 d: 41 55 push %r13 f: 41 54 push %r12 11: 53 push %rbx 12: 83 ff dd cmp $0xffffffdd,%edi 15: 0f 85 86 00 00 00 jne 0xa1 1b: 48 89 f7 mov %rsi,%rdi 1e: e8 a6 3b 01 00 call 0x13bc9 23: 48 8d 3d ef c2 19 04 lea 0x419c2ef(%rip),%rdi # 0x419c319 * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: 4c 8d 3d 00 00 00 00 lea 0x0(%rip),%r15 # 0x36 36: 65 48 8b 1c 25 08 f0 mov %gs:0xffffffff91a9f008,%rbx 3d: a9 91 3f: 4c rex.WR --- 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 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