INFO: task kworker/u4:1:136 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:1 state:D stack: 0 pid: 136 ppid: 2 flags:0x00000008 Workqueue: events_power_efficient crda_timeout_work Call trace: __switch_to+0x2f4/0x540 arch/arm64/kernel/process.c:521 context_switch kernel/sched/core.c:5049 [inline] __schedule+0xdfc/0x1bc4 kernel/sched/core.c:6395 schedule+0x11c/0x1c8 kernel/sched/core.c:6478 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6537 __mutex_lock_common+0xac8/0x1f14 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:72 crda_timeout_work+0x1c/0x64 net/wireless/reg.c:538 process_one_work+0x79c/0x1138 kernel/workqueue.c:2310 worker_thread+0x8f4/0x1034 kernel/workqueue.c:2457 kthread+0x374/0x454 kernel/kthread.c:334 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:856 INFO: task kworker/u4:5:575 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:5 state:D stack: 0 pid: 575 ppid: 2 flags:0x00000008 Workqueue: events_unbound linkwatch_event Call trace: __switch_to+0x2f4/0x540 arch/arm64/kernel/process.c:521 context_switch kernel/sched/core.c:5049 [inline] __schedule+0xdfc/0x1bc4 kernel/sched/core.c:6395 schedule+0x11c/0x1c8 kernel/sched/core.c:6478 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6537 __mutex_lock_common+0xac8/0x1f14 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:72 linkwatch_event+0x14/0x68 net/core/link_watch.c:251 process_one_work+0x79c/0x1138 kernel/workqueue.c:2310 worker_thread+0x8f4/0x1034 kernel/workqueue.c:2457 kthread+0x374/0x454 kernel/kthread.c:334 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:856 INFO: task dhcpcd:3713 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:dhcpcd state:D stack: 0 pid: 3713 ppid: 3712 flags:0x00000004 Call trace: __switch_to+0x2f4/0x540 arch/arm64/kernel/process.c:521 context_switch kernel/sched/core.c:5049 [inline] __schedule+0xdfc/0x1bc4 kernel/sched/core.c:6395 schedule+0x11c/0x1c8 kernel/sched/core.c:6478 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6537 __mutex_lock_common+0xac8/0x1f14 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743 rtnl_lock net/core/rtnetlink.c:72 [inline] rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 netlink_rcv_skb+0x210/0x3d8 net/netlink/af_netlink.c:2507 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:5705 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x624/0x890 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x6f4/0x9d8 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:706 [inline] __sock_sendmsg net/socket.c:718 [inline] ____sys_sendmsg+0x62c/0x940 net/socket.c:2445 ___sys_sendmsg+0x1f0/0x27c net/socket.c:2499 __sys_sendmsg net/socket.c:2528 [inline] __do_sys_sendmsg net/socket.c:2537 [inline] __se_sys_sendmsg net/socket.c:2535 [inline] __arm64_sys_sendmsg+0x1bc/0x278 net/socket.c:2535 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1d0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 INFO: task kworker/1:8:4161 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:8 state:D stack: 0 pid: 4161 ppid: 2 flags:0x00000008 Workqueue: events switchdev_deferred_process_work Call trace: __switch_to+0x2f4/0x540 arch/arm64/kernel/process.c:521 context_switch kernel/sched/core.c:5049 [inline] __schedule+0xdfc/0x1bc4 kernel/sched/core.c:6395 schedule+0x11c/0x1c8 kernel/sched/core.c:6478 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6537 __mutex_lock_common+0xac8/0x1f14 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:72 switchdev_deferred_process_work+0x14/0x28 net/switchdev/switchdev.c:74 process_one_work+0x79c/0x1138 kernel/workqueue.c:2310 worker_thread+0x8f4/0x1034 kernel/workqueue.c:2457 kthread+0x374/0x454 kernel/kthread.c:334 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:856 INFO: task kworker/0:15:4922 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:15 state:D stack: 0 pid: 4922 ppid: 2 flags:0x00000008 Workqueue: ipv6_addrconf addrconf_dad_work Call trace: __switch_to+0x2f4/0x540 arch/arm64/kernel/process.c:521 context_switch kernel/sched/core.c:5049 [inline] __schedule+0xdfc/0x1bc4 kernel/sched/core.c:6395 schedule+0x11c/0x1c8 kernel/sched/core.c:6478 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6537 __mutex_lock_common+0xac8/0x1f14 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743 rtnl_lock+0x20/0x2c net/core/rtnetlink.c:72 addrconf_dad_work+0xc4/0x1128 net/ipv6/addrconf.c:4110 process_one_work+0x79c/0x1138 kernel/workqueue.c:2310 worker_thread+0x8f4/0x1034 kernel/workqueue.c:2457 kthread+0x374/0x454 kernel/kthread.c:334 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:856 INFO: task syz.0.3096:12048 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.3096 state:D stack: 0 pid:12048 ppid: 11161 flags:0x00000001 Call trace: __switch_to+0x2f4/0x540 arch/arm64/kernel/process.c:521 context_switch kernel/sched/core.c:5049 [inline] __schedule+0xdfc/0x1bc4 kernel/sched/core.c:6395 schedule+0x11c/0x1c8 kernel/sched/core.c:6478 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6537 __mutex_lock_common+0xac8/0x1f14 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743 rtnl_lock net/core/rtnetlink.c:72 [inline] rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 netlink_rcv_skb+0x210/0x3d8 net/netlink/af_netlink.c:2507 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:5705 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x624/0x890 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x6f4/0x9d8 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:706 [inline] __sock_sendmsg net/socket.c:718 [inline] ____sys_sendmsg+0x62c/0x940 net/socket.c:2445 ___sys_sendmsg+0x1f0/0x27c net/socket.c:2499 __sys_sendmsg net/socket.c:2528 [inline] __do_sys_sendmsg net/socket.c:2537 [inline] __se_sys_sendmsg net/socket.c:2535 [inline] __arm64_sys_sendmsg+0x1bc/0x278 net/socket.c:2535 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1d0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 INFO: task syz.5.3097:12044 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.5.3097 state:D stack: 0 pid:12044 ppid: 11098 flags:0x00000001 Call trace: __switch_to+0x2f4/0x540 arch/arm64/kernel/process.c:521 context_switch kernel/sched/core.c:5049 [inline] __schedule+0xdfc/0x1bc4 kernel/sched/core.c:6395 schedule+0x11c/0x1c8 kernel/sched/core.c:6478 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6537 __mutex_lock_common+0xac8/0x1f14 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743 rtnl_lock net/core/rtnetlink.c:72 [inline] rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 netlink_rcv_skb+0x210/0x3d8 net/netlink/af_netlink.c:2507 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:5705 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x624/0x890 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x6f4/0x9d8 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:706 [inline] __sock_sendmsg net/socket.c:718 [inline] ____sys_sendmsg+0x62c/0x940 net/socket.c:2445 ___sys_sendmsg+0x1f0/0x27c net/socket.c:2499 __sys_sendmsg net/socket.c:2528 [inline] __do_sys_sendmsg net/socket.c:2537 [inline] __se_sys_sendmsg net/socket.c:2535 [inline] __arm64_sys_sendmsg+0x1bc/0x278 net/socket.c:2535 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1d0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 INFO: task syz.7.3094:12051 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.7.3094 state:D stack: 0 pid:12051 ppid: 11109 flags:0x00000001 Call trace: __switch_to+0x2f4/0x540 arch/arm64/kernel/process.c:521 context_switch kernel/sched/core.c:5049 [inline] __schedule+0xdfc/0x1bc4 kernel/sched/core.c:6395 schedule+0x11c/0x1c8 kernel/sched/core.c:6478 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6537 __mutex_lock_common+0xac8/0x1f14 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743 rtnl_lock net/core/rtnetlink.c:72 [inline] rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 netlink_rcv_skb+0x210/0x3d8 net/netlink/af_netlink.c:2507 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:5705 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x624/0x890 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x6f4/0x9d8 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:706 [inline] __sock_sendmsg net/socket.c:718 [inline] ____sys_sendmsg+0x62c/0x940 net/socket.c:2445 ___sys_sendmsg+0x1f0/0x27c net/socket.c:2499 __sys_sendmsg net/socket.c:2528 [inline] __do_sys_sendmsg net/socket.c:2537 [inline] __se_sys_sendmsg net/socket.c:2535 [inline] __arm64_sys_sendmsg+0x1bc/0x278 net/socket.c:2535 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1d0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 INFO: task syz.8.3095:12047 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.8.3095 state:D stack: 0 pid:12047 ppid: 11110 flags:0x00000001 Call trace: __switch_to+0x2f4/0x540 arch/arm64/kernel/process.c:521 context_switch kernel/sched/core.c:5049 [inline] __schedule+0xdfc/0x1bc4 kernel/sched/core.c:6395 schedule+0x11c/0x1c8 kernel/sched/core.c:6478 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6537 __mutex_lock_common+0xac8/0x1f14 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743 rtnl_lock net/core/rtnetlink.c:72 [inline] rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 netlink_rcv_skb+0x210/0x3d8 net/netlink/af_netlink.c:2507 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:5705 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x624/0x890 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x6f4/0x9d8 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:706 [inline] __sock_sendmsg net/socket.c:718 [inline] ____sys_sendmsg+0x62c/0x940 net/socket.c:2445 ___sys_sendmsg+0x1f0/0x27c net/socket.c:2499 __sys_sendmsg net/socket.c:2528 [inline] __do_sys_sendmsg net/socket.c:2537 [inline] __se_sys_sendmsg net/socket.c:2535 [inline] __arm64_sys_sendmsg+0x1bc/0x278 net/socket.c:2535 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1d0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 INFO: task syz.6.3098:12050 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.6.3098 state:D stack: 0 pid:12050 ppid: 11100 flags:0x00000001 Call trace: __switch_to+0x2f4/0x540 arch/arm64/kernel/process.c:521 context_switch kernel/sched/core.c:5049 [inline] __schedule+0xdfc/0x1bc4 kernel/sched/core.c:6395 schedule+0x11c/0x1c8 kernel/sched/core.c:6478 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6537 __mutex_lock_common+0xac8/0x1f14 kernel/locking/mutex.c:669 __mutex_lock kernel/locking/mutex.c:729 [inline] mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743 rtnl_lock net/core/rtnetlink.c:72 [inline] rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 netlink_rcv_skb+0x210/0x3d8 net/netlink/af_netlink.c:2507 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:5705 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x624/0x890 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x6f4/0x9d8 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:706 [inline] __sock_sendmsg net/socket.c:718 [inline] ____sys_sendmsg+0x62c/0x940 net/socket.c:2445 ___sys_sendmsg+0x1f0/0x27c net/socket.c:2499 __sys_sendmsg net/socket.c:2528 [inline] __do_sys_sendmsg net/socket.c:2537 [inline] __se_sys_sendmsg net/socket.c:2535 [inline] __arm64_sys_sendmsg+0x1bc/0x278 net/socket.c:2535 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1d0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffff800014471360 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:312 3 locks held by kworker/u4:1/136: #0: ffff0000c002a138 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x678/0x1138 kernel/workqueue.c:2283 #1: ffff80001ba77c00 ((crda_timeout).work){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1138 kernel/workqueue.c:2285 #2: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:72 4 locks held by kworker/u4:2/148: #0: ffff0000c038c138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x678/0x1138 kernel/workqueue.c:2283 #1: ffff80001bee7c00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1138 kernel/workqueue.c:2285 #2: ffff8000163bf450 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x13c/0xaa4 net/core/net_namespace.c:589 #3: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:72 3 locks held by kworker/u4:5/575: #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x678/0x1138 kernel/workqueue.c:2283 #1: ffff8000203a7c00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1138 kernel/workqueue.c:2285 #2: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:72 1 lock held by dhcpcd/3713: #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 2 locks held by getty/3802: #0: ffff0000d4280098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340 #1: ffff80001be6e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c drivers/tty/n_tty.c:2158 3 locks held by kworker/1:8/4161: #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x678/0x1138 kernel/workqueue.c:2283 #1: ffff80001fe57c00 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1138 kernel/workqueue.c:2285 #2: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:72 3 locks held by kworker/0:15/4922: #0: ffff0000d26b2938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x678/0x1138 kernel/workqueue.c:2283 #1: ffff80001fb47c00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1138 kernel/workqueue.c:2285 #2: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:72 3 locks held by kworker/u4:7/5941: #0: ffff0000c002a138 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x678/0x1138 kernel/workqueue.c:2283 #1: ffff8000202f7c00 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1138 kernel/workqueue.c:2285 #2: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:72 1 lock held by syz.0.3096/12048: #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 1 lock held by syz.5.3097/12044: #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 1 lock held by syz.7.3094/12051: #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 1 lock held by syz.8.3095/12047: #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 1 lock held by syz.6.3098/12050: #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 1 lock held by syz-executor/12054: #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 1 lock held by syz-executor/12058: #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 1 lock held by syz-executor/12062: #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 1 lock held by syz-executor/12064: #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 1 lock held by syz-executor/12067: #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 1 lock held by syz-executor/12075: #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 1 lock held by syz-executor/12080: #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 1 lock held by syz-executor/12082: #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 1 lock held by syz-executor/12085: #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 1 lock held by syz-executor/12089: #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 1 lock held by syz-executor/12098: #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 1 lock held by syz-executor/12099: #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 1 lock held by syz-executor/12101: #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 1 lock held by syz-executor/12109: #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 1 lock held by syz-executor/12110: #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000163cafa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6d0/0xd70 net/core/rtnetlink.c:5684 =============================================