Hello, syzbot found the following issue on: HEAD commit: e0cce98fe279 Merge tag 'tpmdd-next-6.10-rc2' of git://git... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=125ada62980000 kernel config: https://syzkaller.appspot.com/x/.config?x=238430243a58f702 dashboard link: https://syzkaller.appspot.com/bug?extid=2782e03212f5ae711088 compiler: gcc (Debian 12.2.0-14) 12.2.0, 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/d23687674aed/disk-e0cce98f.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/780007429aa0/vmlinux-e0cce98f.xz kernel image: https://storage.googleapis.com/syzbot-assets/43ef750cb8d4/bzImage-e0cce98f.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+2782e03212f5ae711088@xxxxxxxxxxxxxxxxxxxxxxxxx INFO: task kworker/u8:3:51 blocked for more than 143 seconds. Not tainted 6.10.0-rc1-syzkaller-00021-ge0cce98fe279 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:3 state:D stack:24512 pid:51 tgid:51 ppid:2 flags:0x00004000 Workqueue: netns cleanup_net Call Trace: <TASK> context_switch kernel/sched/core.c:5408 [inline] __schedule+0xf15/0x5d00 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 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+0x5b8/0x9c0 kernel/locking/mutex.c:752 ieee80211_unregister_hw+0x4d/0x3a0 net/mac80211/main.c:1645 mac80211_hwsim_del_radio drivers/net/wireless/virtual/mac80211_hwsim.c:5576 [inline] hwsim_exit_net+0x3ad/0x7d0 drivers/net/wireless/virtual/mac80211_hwsim.c:6453 ops_exit_list+0xb0/0x180 net/core/net_namespace.c:173 cleanup_net+0x5b7/0xbf0 net/core/net_namespace.c:640 process_one_work+0x9fb/0x1b60 kernel/workqueue.c:3231 process_scheduled_works kernel/workqueue.c:3312 [inline] worker_thread+0x6c8/0xf70 kernel/workqueue.c:3393 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> INFO: task syz-executor.1:5928 blocked for more than 143 seconds. Not tainted 6.10.0-rc1-syzkaller-00021-ge0cce98fe279 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:25408 pid:5928 tgid:5928 ppid:1 flags:0x00000006 Call Trace: <TASK> context_switch kernel/sched/core.c:5408 [inline] __schedule+0xf15/0x5d00 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 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+0x5b8/0x9c0 kernel/locking/mutex.c:752 rtnl_lock net/core/rtnetlink.c:79 [inline] rtnetlink_rcv_msg+0x372/0xe60 net/core/rtnetlink.c:6592 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2564 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline] netlink_unicast+0x542/0x820 net/netlink/af_netlink.c:1361 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1905 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x47f/0x4e0 net/socket.c:2192 --- 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@xxxxxxxxxxxxxxxx. 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
