INFO: task kworker/1:15:5575 blocked for more than 143 seconds. Not tainted 6.4.0-next-20230707-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:15 state:D stack:26256 pid:5575 ppid:2 flags:0x00004000 Workqueue: events_power_efficient reg_check_chans_work Call Trace: context_switch kernel/sched/core.c:5380 [inline] __schedule+0xc9a/0x5880 kernel/sched/core.c:6709 schedule+0xde/0x1a0 kernel/sched/core.c:6785 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6844 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747 wiphy_lock include/net/cfg80211.h:5773 [inline] reg_leave_invalid_chans net/wireless/reg.c:2450 [inline] reg_check_chans_work+0x103/0x1040 net/wireless/reg.c:2465 process_one_work+0xa34/0x16f0 kernel/workqueue.c:2597 worker_thread+0x67d/0x10c0 kernel/workqueue.c:2748 kthread+0x344/0x440 kernel/kthread.c:389 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task syz-executor.5:5876 blocked for more than 143 seconds. Not tainted 6.4.0-next-20230707-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:29496 pid:5876 ppid:5070 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5380 [inline] __schedule+0xc9a/0x5880 kernel/sched/core.c:6709 schedule+0xde/0x1a0 kernel/sched/core.c:6785 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6844 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747 br_ioctl_stub+0x98/0x810 net/bridge/br_ioctl.c:402 br_ioctl_call+0x62/0xb0 net/socket.c:1164 sock_ioctl+0x354/0x670 net/socket.c:1261 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x19d/0x210 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fb7b928c389 RSP: 002b:00007fb7b9fed168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fb7b93ac120 RCX: 00007fb7b928c389 RDX: 0000000020000080 RSI: 0000000000008941 RDI: 0000000000000004 RBP: 00007fb7b92d7493 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffde471bc0f R14: 00007fb7b9fed300 R15: 0000000000022000 INFO: task syz-executor.2:5893 blocked for more than 144 seconds. Not tainted 6.4.0-next-20230707-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:29232 pid:5893 ppid:5078 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5380 [inline] __schedule+0xc9a/0x5880 kernel/sched/core.c:6709 schedule+0xde/0x1a0 kernel/sched/core.c:6785 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6844 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747 ip_mroute_setsockopt+0xca/0x13c0 net/ipv4/ipmr.c:1370 do_ip_setsockopt+0xa2c/0x3da0 net/ipv4/ip_sockglue.c:951 ip_setsockopt+0x59/0x110 net/ipv4/ip_sockglue.c:1455 raw_setsockopt+0x23e/0x2d0 net/ipv4/raw.c:835 __sys_setsockopt+0x2c6/0x5b0 net/socket.c:2263 __do_sys_setsockopt net/socket.c:2274 [inline] __se_sys_setsockopt net/socket.c:2271 [inline] __x64_sys_setsockopt+0xbe/0x160 net/socket.c:2271 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7bd448c389 RSP: 002b:00007f7bd522e168 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f7bd45abf80 RCX: 00007f7bd448c389 RDX: 00000000000000d2 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007f7bd44d7493 R08: 000000000000003c R09: 0000000000000000 R10: 00000000200000c0 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc2b8aa74f R14: 00007f7bd522e300 R15: 0000000000022000 INFO: task syz-executor.2:5895 blocked for more than 144 seconds. Not tainted 6.4.0-next-20230707-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:29232 pid:5895 ppid:5078 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5380 [inline] __schedule+0xc9a/0x5880 kernel/sched/core.c:6709 schedule+0xde/0x1a0 kernel/sched/core.c:6785 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6844 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747 ip_mroute_setsockopt+0xca/0x13c0 net/ipv4/ipmr.c:1370 do_ip_setsockopt+0xa2c/0x3da0 net/ipv4/ip_sockglue.c:951 ip_setsockopt+0x59/0x110 net/ipv4/ip_sockglue.c:1455 raw_setsockopt+0x23e/0x2d0 net/ipv4/raw.c:835 __sys_setsockopt+0x2c6/0x5b0 net/socket.c:2263 __do_sys_setsockopt net/socket.c:2274 [inline] __se_sys_setsockopt net/socket.c:2271 [inline] __x64_sys_setsockopt+0xbe/0x160 net/socket.c:2271 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7bd448c389 RSP: 002b:00007f7bd520d168 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f7bd45ac050 RCX: 00007f7bd448c389 RDX: 00000000000000c9 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f7bd44d7493 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc2b8aa74f R14: 00007f7bd520d300 R15: 0000000000022000 INFO: task syz-executor.2:5896 blocked for more than 145 seconds. Not tainted 6.4.0-next-20230707-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:29232 pid:5896 ppid:5078 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5380 [inline] __schedule+0xc9a/0x5880 kernel/sched/core.c:6709 schedule+0xde/0x1a0 kernel/sched/core.c:6785 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6844 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747 ip_mroute_setsockopt+0xca/0x13c0 net/ipv4/ipmr.c:1370 do_ip_setsockopt+0xa2c/0x3da0 net/ipv4/ip_sockglue.c:951 ip_setsockopt+0x59/0x110 net/ipv4/ip_sockglue.c:1455 raw_setsockopt+0x23e/0x2d0 net/ipv4/raw.c:835 __sys_setsockopt+0x2c6/0x5b0 net/socket.c:2263 __do_sys_setsockopt net/socket.c:2274 [inline] __se_sys_setsockopt net/socket.c:2271 [inline] __x64_sys_setsockopt+0xbe/0x160 net/socket.c:2271 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7bd448c389 RSP: 002b:00007f7bd51ec168 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f7bd45ac120 RCX: 00007f7bd448c389 RDX: 00000000000000d2 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007f7bd44d7493 R08: 000000000000003c R09: 0000000000000000 R10: 0000000020000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc2b8aa74f R14: 00007f7bd51ec300 R15: 0000000000022000 INFO: task syz-executor.2:5900 blocked for more than 145 seconds. Not tainted 6.4.0-next-20230707-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:29232 pid:5900 ppid:5078 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5380 [inline] __schedule+0xc9a/0x5880 kernel/sched/core.c:6709 schedule+0xde/0x1a0 kernel/sched/core.c:6785 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6844 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747 ip_mroute_setsockopt+0xca/0x13c0 net/ipv4/ipmr.c:1370 do_ip_setsockopt+0xa2c/0x3da0 net/ipv4/ip_sockglue.c:951 ip_setsockopt+0x59/0x110 net/ipv4/ip_sockglue.c:1455 raw_setsockopt+0x23e/0x2d0 net/ipv4/raw.c:835 __sys_setsockopt+0x2c6/0x5b0 net/socket.c:2263 __do_sys_setsockopt net/socket.c:2274 [inline] __se_sys_setsockopt net/socket.c:2271 [inline] __x64_sys_setsockopt+0xbe/0x160 net/socket.c:2271 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7bd448c389 RSP: 002b:00007f7bd51cb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f7bd45ac1f0 RCX: 00007f7bd448c389 RDX: 00000000000000d3 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007f7bd44d7493 R08: 000000000000003c R09: 0000000000000000 R10: 0000000020000080 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc2b8aa74f R14: 00007f7bd51cb300 R15: 0000000000022000 INFO: task syz-executor.2:5902 blocked for more than 146 seconds. Not tainted 6.4.0-next-20230707-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:29232 pid:5902 ppid:5078 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5380 [inline] __schedule+0xc9a/0x5880 kernel/sched/core.c:6709 schedule+0xde/0x1a0 kernel/sched/core.c:6785 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6844 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747 ip_mroute_setsockopt+0xca/0x13c0 net/ipv4/ipmr.c:1370 do_ip_setsockopt+0xa2c/0x3da0 net/ipv4/ip_sockglue.c:951 ip_setsockopt+0x59/0x110 net/ipv4/ip_sockglue.c:1455 raw_setsockopt+0x23e/0x2d0 net/ipv4/raw.c:835 __sys_setsockopt+0x2c6/0x5b0 net/socket.c:2263 __do_sys_setsockopt net/socket.c:2274 [inline] __se_sys_setsockopt net/socket.c:2271 [inline] __x64_sys_setsockopt+0xbe/0x160 net/socket.c:2271 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7bd448c389 RSP: 002b:00007f7bd51aa168 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f7bd45ac2c0 RCX: 00007f7bd448c389 RDX: 00000000000000d2 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f7bd44d7493 R08: 000000000000003c R09: 0000000000000000 R10: 00000000200001c0 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc2b8aa74f R14: 00007f7bd51aa300 R15: 0000000000022000 INFO: task syz-executor.2:5905 blocked for more than 147 seconds. Not tainted 6.4.0-next-20230707-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:29232 pid:5905 ppid:5078 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5380 [inline] __schedule+0xc9a/0x5880 kernel/sched/core.c:6709 schedule+0xde/0x1a0 kernel/sched/core.c:6785 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6844 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747 ip_mroute_setsockopt+0xca/0x13c0 net/ipv4/ipmr.c:1370 do_ip_setsockopt+0xa2c/0x3da0 net/ipv4/ip_sockglue.c:951 ip_setsockopt+0x59/0x110 net/ipv4/ip_sockglue.c:1455 raw_setsockopt+0x23e/0x2d0 net/ipv4/raw.c:835 __sys_setsockopt+0x2c6/0x5b0 net/socket.c:2263 __do_sys_setsockopt net/socket.c:2274 [inline] __se_sys_setsockopt net/socket.c:2271 [inline] __x64_sys_setsockopt+0xbe/0x160 net/socket.c:2271 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7bd448c389 RSP: 002b:00007f7bd5189168 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f7bd45ac390 RCX: 00007f7bd448c389 RDX: 00000000000000c8 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007f7bd44d7493 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000020000140 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc2b8aa74f R14: 00007f7bd5189300 R15: 0000000000022000 INFO: task syz-executor.2:5906 blocked for more than 147 seconds. Not tainted 6.4.0-next-20230707-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:29232 pid:5906 ppid:5078 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5380 [inline] __schedule+0xc9a/0x5880 kernel/sched/core.c:6709 schedule+0xde/0x1a0 kernel/sched/core.c:6785 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6844 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747 ip_mroute_setsockopt+0xca/0x13c0 net/ipv4/ipmr.c:1370 do_ip_setsockopt+0xa2c/0x3da0 net/ipv4/ip_sockglue.c:951 ip_setsockopt+0x59/0x110 net/ipv4/ip_sockglue.c:1455 raw_setsockopt+0x23e/0x2d0 net/ipv4/raw.c:835 __sys_setsockopt+0x2c6/0x5b0 net/socket.c:2263 __do_sys_setsockopt net/socket.c:2274 [inline] __se_sys_setsockopt net/socket.c:2271 [inline] __x64_sys_setsockopt+0xbe/0x160 net/socket.c:2271 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7bd448c389 RSP: 002b:00007f7bd5168168 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f7bd45ac460 RCX: 00007f7bd448c389 RDX: 00000000000000d2 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007f7bd44d7493 R08: 000000000000003c R09: 0000000000000000 R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc2b8aa74f R14: 00007f7bd5168300 R15: 0000000000022000 INFO: task syz-executor.2:5908 blocked for more than 148 seconds. Not tainted 6.4.0-next-20230707-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:29232 pid:5908 ppid:5078 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5380 [inline] __schedule+0xc9a/0x5880 kernel/sched/core.c:6709 schedule+0xde/0x1a0 kernel/sched/core.c:6785 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6844 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747 ip_mroute_setsockopt+0xca/0x13c0 net/ipv4/ipmr.c:1370 do_ip_setsockopt+0xa2c/0x3da0 net/ipv4/ip_sockglue.c:951 ip_setsockopt+0x59/0x110 net/ipv4/ip_sockglue.c:1455 raw_setsockopt+0x23e/0x2d0 net/ipv4/raw.c:835 __sys_setsockopt+0x2c6/0x5b0 net/socket.c:2263 __do_sys_setsockopt net/socket.c:2274 [inline] __se_sys_setsockopt net/socket.c:2271 [inline] __x64_sys_setsockopt+0xbe/0x160 net/socket.c:2271 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7bd448c389 RSP: 002b:00007f7bd5147168 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f7bd45ac530 RCX: 00007f7bd448c389 RDX: 00000000000000d2 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f7bd44d7493 R08: 000000000000003c R09: 0000000000000000 R10: 0000000020000200 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc2b8aa74f R14: 00007f7bd5147300 R15: 0000000000022000 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings Showing all locks held in the system: 4 locks held by kworker/0:1/9: 1 lock held by rcu_tasks_kthre/13: #0: ffffffff8c9a3db0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:522 1 lock held by rcu_tasks_trace/14: #0: ffffffff8c9a3ab0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:522 1 lock held by khungtaskd/28: #0: ffffffff8c9a49c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6615 3 locks held by ipv6_addrconf/2596: #0: ffff88814b539538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline] #0: ffff88814b539538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline] #0: ffff88814b539538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline] #0: ffff88814b539538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline] #0: ffff88814b539538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline] #0: ffff88814b539538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline] #0: ffff88814b539538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x8fd/0x16f0 kernel/workqueue.c:2567 #1: ffffc9000c25fd50 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x930/0x16f0 kernel/workqueue.c:2571 #2: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4630 6 locks held by kworker/0:3/4766: 2 locks held by getty/4776: #0: ffff88814c890098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:243 #1: ffffc900015972f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xf08/0x13f0 drivers/tty/n_tty.c:2187 3 locks held by kworker/0:4/5129: 4 locks held by kworker/0:8/5135: 4 locks held by kworker/0:9/5144: 4 locks held by kworker/0:11/5186: 3 locks held by kworker/1:14/5574: #0: ffff88814b539538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline] #0: ffff88814b539538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline] #0: ffff88814b539538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline] #0: ffff88814b539538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline] #0: ffff88814b539538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline] #0: ffff88814b539538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline] #0: ffff88814b539538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x8fd/0x16f0 kernel/workqueue.c:2567 #1: ffffc9000656fdb0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x930/0x16f0 kernel/workqueue.c:2571 #2: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4630 4 locks held by kworker/1:15/5575: #0: ffff888012871d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline] #0: ffff888012871d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline] #0: ffff888012871d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline] #0: ffff888012871d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline] #0: ffff888012871d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline] #0: ffff888012871d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline] #0: ffff888012871d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x8fd/0x16f0 kernel/workqueue.c:2567 #1: ffffc9000657fdb0 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x930/0x16f0 kernel/workqueue.c:2571 #2: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: reg_check_chans_work+0x82/0x1040 net/wireless/reg.c:2462 #3: ffff8880903b0768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: wiphy_lock include/net/cfg80211.h:5773 [inline] #3: ffff8880903b0768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: reg_leave_invalid_chans net/wireless/reg.c:2450 [inline] #3: ffff8880903b0768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: reg_check_chans_work+0x103/0x1040 net/wireless/reg.c:2465 2 locks held by syz-executor.5/5876: #0: ffffffff8e3aa708 (br_ioctl_mutex){+.+.}-{3:3}, at: br_ioctl_call+0x3f/0xb0 net/socket.c:1162 #1: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: br_ioctl_stub+0x98/0x810 net/bridge/br_ioctl.c:402 1 lock held by syz-executor.2/5893: #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: ip_mroute_setsockopt+0xca/0x13c0 net/ipv4/ipmr.c:1370 1 lock held by syz-executor.2/5895: #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: ip_mroute_setsockopt+0xca/0x13c0 net/ipv4/ipmr.c:1370 1 lock held by syz-executor.2/5896: #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: ip_mroute_setsockopt+0xca/0x13c0 net/ipv4/ipmr.c:1370 1 lock held by syz-executor.2/5900: #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: ip_mroute_setsockopt+0xca/0x13c0 net/ipv4/ipmr.c:1370 1 lock held by syz-executor.2/5902: #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: ip_mroute_setsockopt+0xca/0x13c0 net/ipv4/ipmr.c:1370 1 lock held by syz-executor.2/5905: #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: ip_mroute_setsockopt+0xca/0x13c0 net/ipv4/ipmr.c:1370 1 lock held by syz-executor.2/5906: #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: ip_mroute_setsockopt+0xca/0x13c0 net/ipv4/ipmr.c:1370 1 lock held by syz-executor.2/5908: #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: ip_mroute_setsockopt+0xca/0x13c0 net/ipv4/ipmr.c:1370 1 lock held by syz-executor.2/5910: #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: ip_mroute_setsockopt+0xca/0x13c0 net/ipv4/ipmr.c:1370 1 lock held by syz-executor.1/5909: #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 net/core/rtnetlink.c:6421 2 locks held by syz-executor.1/5913: #0: ffffffff8e46bcd0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1077 #1: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: nl80211_pre_doit+0xb4/0xab0 net/wireless/nl80211.c:16421 1 lock held by syz-executor.1/5915: #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 net/core/rtnetlink.c:6421 1 lock held by syz-executor.3/5912: #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: do_ipv6_setsockopt+0x2135/0x4b50 net/ipv6/ipv6_sockglue.c:419 1 lock held by syz-executor.5/5991: #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 net/core/rtnetlink.c:6421 1 lock held by syz-executor.3/5999: #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 net/core/rtnetlink.c:6421 1 lock held by syz-executor.1/6000: #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 net/core/rtnetlink.c:6421 1 lock held by syz-executor.2/6001: #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 net/core/rtnetlink.c:6421 1 lock held by syz-executor.5/6006: #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 net/core/rtnetlink.c:6421 1 lock held by syz-executor.1/6015: #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 net/core/rtnetlink.c:6421 1 lock held by syz-executor.2/6016: #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 net/core/rtnetlink.c:6421 1 lock held by syz-executor.3/6018: #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e3d23a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e8/0xd50 net/core/rtnetlink.c:6421 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.4.0-next-20230707-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106 nmi_cpu_backtrace+0x29c/0x350 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x2a4/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xe16/0x1090 kernel/hung_task.c:379 kthread+0x344/0x440 kernel/kthread.c:389 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 4766 Comm: kworker/0:3 Not tainted 6.4.0-next-20230707-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 Workqueue: events_power_efficient neigh_periodic_work RIP: 0010:match_held_lock+0x82/0xc0 kernel/locking/lockdep.c:5238 Code: 0f 94 c0 48 83 c4 08 0f b6 c0 5b c3 31 f6 e8 65 fe ff ff 48 85 c0 75 b2 31 c0 48 83 c4 08 5b c3 48 83 c4 08 b8 01 00 00 00 5b e8 f8 71 f3 f9 85 c0 74 e4 8b 05 aa d3 8a 04 85 c0 75 da 48 c7 RSP: 0018:ffffc90000006ab8 EFLAGS: 00000092 RAX: 0000000000000001 RBX: 0000000000000002 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff8c9a49c0 RDI: ffff88801fe94698 RBP: ffffffff8c9a49c0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88801fe93b80 R13: ffff88801fe94648 R14: 00000000ffffffff R15: ffff88801fe94698 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f68cf75f9d0 CR3: 000000000c775000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __lock_is_held kernel/locking/lockdep.c:5502 [inline] lock_is_held_type+0xab/0x140 kernel/locking/lockdep.c:5832 find_match.part.0+0x282/0xd80 include/net/addrconf.h:315 find_match net/ipv6/route.c:827 [inline] __find_rr_leaf+0x17f/0xdc0 net/ipv6/route.c:828 find_rr_leaf net/ipv6/route.c:849 [inline] rt6_select net/ipv6/route.c:893 [inline] fib6_table_lookup+0x62e/0xa20 net/ipv6/route.c:2181 ip6_pol_route+0x1c9/0x1230 net/ipv6/route.c:2217 pol_lookup_func include/net/ip6_fib.h:576 [inline] fib6_rule_lookup+0x115/0x6e0 net/ipv6/fib6_rules.c:116 ip6_route_input_lookup net/ipv6/route.c:2286 [inline] ip6_route_input+0x5d8/0xbb0 net/ipv6/route.c:2582 ip6_rcv_finish_core.constprop.0+0x1a4/0x5d0 net/ipv6/ip6_input.c:66 ip6_rcv_finish+0x130/0x2c0 net/ipv6/ip6_input.c:77 ip_sabotage_in+0x22a/0x2a0 net/bridge/br_netfilter_hooks.c:880 nf_hook_entry_hookfn include/linux/netfilter.h:143 [inline] nf_hook_slow+0xc9/0x1f0 net/netfilter/core.c:626 nf_hook.constprop.0+0x408/0x710 include/linux/netfilter.h:258 NF_HOOK include/linux/netfilter.h:301 [inline] ipv6_rcv+0xa2/0x380 net/ipv6/ip6_input.c:309 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5452 __netif_receive_skb+0x1f/0x1c0 net/core/dev.c:5566 netif_receive_skb_internal net/core/dev.c:5652 [inline] netif_receive_skb+0x133/0x7a0 net/core/dev.c:5711 NF_HOOK include/linux/netfilter.h:303 [inline] NF_HOOK include/linux/netfilter.h:297 [inline] br_pass_frame_up+0x303/0x430 net/bridge/br_input.c:68 br_handle_frame_finish+0xd1f/0x1de0 net/bridge/br_input.c:216 br_nf_hook_thresh+0x2fb/0x3f0 net/bridge/br_netfilter_hooks.c:1048 br_nf_pre_routing_finish_ipv6+0x695/0xf30 net/bridge/br_netfilter_ipv6.c:148 NF_HOOK include/linux/netfilter.h:303 [inline] br_nf_pre_routing_ipv6+0x41b/0x830 net/bridge/br_netfilter_ipv6.c:178 br_nf_pre_routing+0xda4/0x1520 net/bridge/br_netfilter_hooks.c:508 nf_hook_entry_hookfn include/linux/netfilter.h:143 [inline] nf_hook_bridge_pre net/bridge/br_input.c:272 [inline] br_handle_frame+0xac1/0x1440 net/bridge/br_input.c:417 __netif_receive_skb_core+0xa10/0x3900 net/core/dev.c:5346 __netif_receive_skb_one_core+0xae/0x180 net/core/dev.c:5450 __netif_receive_skb+0x1f/0x1c0 net/core/dev.c:5566 process_backlog+0x101/0x670 net/core/dev.c:5894 __napi_poll+0xb7/0x6f0 net/core/dev.c:6460 napi_poll net/core/dev.c:6527 [inline] net_rx_action+0x8a9/0xcb0 net/core/dev.c:6660 __do_softirq+0x1d4/0x905 kernel/softirq.c:553 do_softirq.part.0+0x87/0xc0 kernel/softirq.c:454 do_softirq kernel/softirq.c:446 [inline] __local_bh_enable_ip+0x106/0x130 kernel/softirq.c:381 neigh_periodic_work+0x623/0xac0 net/core/neighbour.c:1006 process_one_work+0xa34/0x16f0 kernel/workqueue.c:2597 worker_thread+0x67d/0x10c0 kernel/workqueue.c:2748 kthread+0x344/0x440 kernel/kthread.c:389 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308