From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f207.google.com (mail-il1-f207.google.com [209.85.166.207]) (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 7ACAB21D3C5 for ; Sat, 1 Nov 2025 03:12:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.207 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761966753; cv=none; b=Y26VjEq2G9uzw18xKEIOkjVMfAEZ54fwxfVJTq5M8xeI9tWIoeWwPrhU8Yboe2jNtWGnRtQV2H00J03n6kWNOl70ktOMzp7ezDgKvS2nWxdH4cXf+zZAo5HgVYt/ni2u/Ze8SNAbnH2grMuz7rsorktnIFNfJ2/uzevOP1ix6vU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761966753; c=relaxed/simple; bh=1nJzeRaMWwh80JChzmBrDut1RAfItrUcuVoWyS9W8BI=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=HyVWNSb5yjzdOp5Aun5YYpnvMROP9NclVNVUx7aolgcaPUFsul1Y0pTi6hNWZo2LlarZOxVlDhtWqUYem8wd/XVL0AJSpKw8CUiIN0icsiOy4wyyEU//hw1ku96HlLjMqif2wwBgBZRzQ/RMPUVs1LMEspZyQI5wDBY7ShiKGsE= 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=209.85.166.207 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-il1-f207.google.com with SMTP id e9e14a558f8ab-430c1cbd1f2so35076345ab.0 for ; Fri, 31 Oct 2025 20:12:31 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761966750; x=1762571550; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=Nl4e23YNqS4a7oAFSjJzU/Fyw1wJYae3i9pNM46KVAQ=; b=bZGLxQjNoUA5tOlWeTqcRzD5we5mMPSu0Jy/BGsg7rByW1fdknu6ZDVitBwehOu8xu VWfFWSz7qy6GNiNjVC36xx2th00gosu6q1RMFIQmPpm0+0k87BcoJSIrqOGyJWitThGQ eEhrl9pWInm/JKAcB9MU8CAIgMa/7sufpZvkfkX74HzDYt47QLnc8OVfqfeEN7uBl5Pt YVkJG+zYiKEb8k6bkICe1Ev8PldiTN6JOc89hsPBiwFBF4hUoVpP6MNNaOLInmA5P3Xn cBvINlZo12SwlOZ614E33V/m1M0bgyM2cxBfh2SjNwkHbrWMHIG2SemYwN2aA5GT9Y+D UwcQ== X-Forwarded-Encrypted: i=1; AJvYcCV6/sGL2HcBFZgWotIuzxMjA73bM3k+xVTOlZbaJ/mRdyP+zdPPgfn4Slm9RRI5KiWniKP7kU46JGyhFow=@vger.kernel.org X-Gm-Message-State: AOJu0YzQFT1oeh9OhXipEw/6kIMn8C/ZYWW5dR/ixJ8sZHv//IefpfDA MdrJCx4CDvOTbDaXsPYK0LJWGP7Zk73EqgPbyVNAUq/L6bHFyVDn019hjIxdc9Im7SBGskkODmO JGWdrUG4iavvLDIUr74y1Rmq5CiZU9a6ZZCNk4bD8dpC3PEedJCt3dAwH4rc= X-Google-Smtp-Source: AGHT+IGU9iu+ivCWDkfgQvQKDWX2CZ+qpkUm7qlePBwEIbdYdZA9JhcDVKqMu9RL2kdzvV76yqGo/riCLF1afnUzzVFv2/wklNNG Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:2501:b0:430:d5b8:6160 with SMTP id e9e14a558f8ab-4330d1e6f32mr100382805ab.29.1761966750612; Fri, 31 Oct 2025 20:12:30 -0700 (PDT) Date: Fri, 31 Oct 2025 20:12:30 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69057a9e.050a0220.e9cb8.001f.GAE@google.com> Subject: [syzbot] [wireless?] WARNING in rfkill_fop_open 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: fd57572253bc Merge tag 'sched_ext-for-6.18-rc3-fixes' of g.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14140704580000 kernel config: https://syzkaller.appspot.com/x/.config?x=41ad820f608cb833 dashboard link: https://syzkaller.appspot.com/bug?extid=1254ea61f6f4969c9ef4 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/c72764dfac75/disk-fd575722.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/c0f65b3e3b85/vmlinux-fd575722.xz kernel image: https://storage.googleapis.com/syzbot-assets/53a0e239c3e5/bzImage-fd575722.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+1254ea61f6f4969c9ef4@syzkaller.appspotmail.com ------------[ cut here ]------------ rtmutex deadlock detected WARNING: CPU: 1 PID: 13303 at kernel/locking/rtmutex.c:1674 rt_mutex_handle_deadlock+0x28/0xb0 kernel/locking/rtmutex.c:1674 Modules linked in: CPU: 1 UID: 0 PID: 13303 Comm: syz.5.857 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:rt_mutex_handle_deadlock+0x28/0xb0 kernel/locking/rtmutex.c:1674 Code: 90 90 41 57 41 56 41 55 41 54 53 83 ff dd 0f 85 8c 00 00 00 48 89 f7 e8 a6 3c 01 00 90 48 c7 c7 e0 18 eb 8a e8 39 7f c0 f6 90 <0f> 0b 90 90 4c 8d 3d 00 00 00 00 65 48 8b 1c 25 08 40 a2 91 4c 8d RSP: 0018:ffffc9000543f490 EFLAGS: 00010246 RAX: 3180a59543ab4000 RBX: ffffc9000543f520 RCX: ffff888057f79e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000543f628 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed101712487b R12: 1ffff92000a87ea0 R13: ffffffff8ac280a9 R14: ffffffff8eb42480 R15: dffffc0000000000 FS: 00007f6af12ee6c0(0000) GS:ffff888126efc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6af12edf98 CR3: 000000003d872000 CR4: 00000000003526f0 Call Trace: __rt_mutex_slowlock kernel/locking/rtmutex.c:1734 [inline] __rt_mutex_slowlock_locked kernel/locking/rtmutex.c:1760 [inline] rt_mutex_slowlock+0x692/0x6e0 kernel/locking/rtmutex.c:1800 __rt_mutex_lock kernel/locking/rtmutex.c:1815 [inline] __mutex_lock_common kernel/locking/rtmutex_api.c:536 [inline] mutex_lock_nested+0x16a/0x1d0 kernel/locking/rtmutex_api.c:547 rfkill_fop_open+0x138/0x820 net/rfkill/core.c:1178 misc_open+0x2de/0x350 drivers/char/misc.c:163 chrdev_open+0x4cf/0x5e0 fs/char_dev.c:414 do_dentry_open+0x9b1/0x1350 fs/open.c:965 vfs_open+0x3b/0x350 fs/open.c:1097 do_open fs/namei.c:3975 [inline] path_openat+0x2ef1/0x3840 fs/namei.c:4134 do_filp_open+0x1fa/0x410 fs/namei.c:4161 do_sys_openat2+0x121/0x1c0 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_openat fs/open.c:1468 [inline] __se_sys_openat fs/open.c:1463 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1463 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6af308efc9 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:00007f6af12ee038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f6af32e5fa0 RCX: 00007f6af308efc9 RDX: 0000000000000801 RSI: 0000200000000040 RDI: ffffffffffffff9c RBP: 00007f6af3111f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f6af32e6038 R14: 00007f6af32e5fa0 R15: 00007ffeabd8a878 --- 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