From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f206.google.com (mail-il1-f206.google.com [209.85.166.206]) (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 166C119B3F3 for ; Thu, 20 Jun 2024 08:47:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.206 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718873247; cv=none; b=hIoNxZ74JUhNBsexHsCrx6jmduKC29MGxEwMu0EzVk3NJLkctTxerKSUvOAyBXLNivbVExfQ3Ui8cY9RMcC5/JOH3uZbuhuSnOt+vxgcKqqEgWl6tuvEES+fEaoEA82E4EGyKNDV4qYBDHYgn24uXLxf709o7h9z4AWxfHv9q+M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718873247; c=relaxed/simple; bh=4ajyZXdaNZf5EZcN3QttERkpTghR9wLhMoW6fjeTTLE=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=sWu893We5UIHALz2qye5ibCxzmioMjPUkjSjTZrSaeI+RYB9bUgRxbus85gUIe5ADF22Scmv7hDUhhT2f0ojykBKdVZchg7T/0ICJ3xefq8jye52LvbMEcn1h0dW5tdJZSdiheR8LSnHQAPUri+g2+uCMnUTldA6LD8NQqE3JhY= 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=209.85.166.206 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-f206.google.com with SMTP id e9e14a558f8ab-3760aaa46a4so8506135ab.3 for ; Thu, 20 Jun 2024 01:47:25 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1718873245; x=1719478045; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=95se0OHnag9kJGTphSgvBACh2aH/NzEMdmcamMkWJW0=; b=BRdHaEpW0bbwTL3illglwkUX/pDU/h3ykXeZmlcAmC+miBXEUqP2DZENjUcrWrNY47 DGA7wEAwXMquZMm18Q6MmLNojFguA3/L/oKVSt+3TYUf+dWewSO8vbdle+Sd3vQtRP1D vtBUKs8JBEKx1AQ/TLxR3mNRic/i7OcOenretZ3I3O4w/A/5OBsNixlmBdcR25Q26vKr B861lANCBRpWrvNXqGue0l5zbjiibh0+J/pj7t6yZ7laAvh7DtaQ3tZ8ZjEdK2jp1Nm1 6aC7ixU4Bsu6/XHWAk7FjwiM3XepJPU4C67xyS14bSoBVpnicRq5b8ohChxBWY3hNqVO md3g== X-Forwarded-Encrypted: i=1; AJvYcCUvyjL/s780hezl24o1VV58ggJZI3P38PGb3sRsjRIKeN0LVRWOq82+UK+Wc9ZSAawpRSvVElOo90h+FxAmgZu80Guqj6Nk X-Gm-Message-State: AOJu0Yxi74V+5T6YkCSrOZ5d/K23SKK5XogYV4Ox1p8ILGg6k0yHNpVO Z2+0MLcBOIdI20CgwSLqTTOoAvi7NJ+wRzsIj2dHHbz3TYf928vFNE/bK5o2D74y406qQi9Q/eN BWeCq0snsAttgAipQJYdJRd03WKqA4rNDOMtUE0mL2CGbpVENT660VLo= X-Google-Smtp-Source: AGHT+IHhn7wtUM2trPcm2DW8Mf8U9tvwkndqInLjrjTlkXvxpjQaZZ07systtO9nwxLdfJGeUmCI+eqdqe8Q4D/7zXVPQtr3AGe6 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a92:c563:0:b0:376:24b1:1746 with SMTP id e9e14a558f8ab-37624b11ac6mr1791235ab.3.1718873245203; Thu, 20 Jun 2024 01:47:25 -0700 (PDT) Date: Thu, 20 Jun 2024 01:47:25 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000031ce3a061b4e5d79@google.com> Subject: [syzbot] [wireless?] INFO: task hung in cfg80211_dfs_channels_update_work (7) From: syzbot To: davem@davemloft.net, edumazet@google.com, johannes@sipsolutions.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 2ccbdf43d5e7 Merge tag 'for-linus' of git://git.kernel.org.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=16519dde980000 kernel config: https://syzkaller.appspot.com/x/.config?x=fa0ce06dcc735711 dashboard link: https://syzkaller.appspot.com/bug?extid=4f955b33340810d6c105 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/27e64d7472ce/disk-2ccbdf43.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/e1c494bb5c9c/vmlinux-2ccbdf43.xz kernel image: https://storage.googleapis.com/syzbot-assets/752498985a5e/bzImage-2ccbdf43.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+4f955b33340810d6c105@syzkaller.appspotmail.com INFO: task kworker/u8:4:61 blocked for more than 143 seconds. Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:4 state:D stack:21872 pid:61 tgid:61 ppid:2 flags:0x00004000 Workqueue: cfg80211 cfg80211_dfs_channels_update_work Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 cfg80211_dfs_channels_update_work+0xbf/0x610 net/wireless/mlme.c:1021 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task syz-executor.3:7040 blocked for more than 143 seconds. Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:25456 pid:7040 tgid:7035 ppid:5121 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 netlink_dump+0x5d3/0xe50 net/netlink/af_netlink.c:2336 __netlink_dump_start+0x59d/0x780 net/netlink/af_netlink.c:2454 netlink_dump_start include/linux/netlink.h:340 [inline] rtnetlink_dump_start net/core/rtnetlink.c:6524 [inline] rtnetlink_rcv_msg+0xda2/0x1180 net/core/rtnetlink.c:6591 netlink_rcv_skb+0x1e5/0x430 net/netlink/af_netlink.c:2564 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline] netlink_unicast+0x7ec/0x980 net/netlink/af_netlink.c:1361 netlink_sendmsg+0x8db/0xcb0 net/netlink/af_netlink.c:1905 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x223/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2585 --- 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