INFO: task khugepaged:34 blocked for more than 143 seconds. Not tainted 6.4.0-rc6-syzkaller-00035-g15adb51c04cc #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:khugepaged state:D stack:27160 pid:34 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5343 [inline] __schedule+0x187b/0x4900 kernel/sched/core.c:6669 schedule+0xc3/0x180 kernel/sched/core.c:6745 schedule_timeout+0xb0/0x310 kernel/time/timer.c:2143 do_wait_for_common+0x449/0x5f0 kernel/sched/completion.c:85 __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x4a/0x60 kernel/sched/completion.c:138 __flush_work+0x130/0x1b0 kernel/workqueue.c:3189 __lru_add_drain_all+0x504/0x570 mm/swap.c:897 khugepaged_do_scan mm/khugepaged.c:2599 [inline] khugepaged+0x16b/0x1b90 mm/khugepaged.c:2668 kthread+0x2b8/0x350 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task kworker/u4:1:16204 blocked for more than 143 seconds. Not tainted 6.4.0-rc6-syzkaller-00035-g15adb51c04cc #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:1 state:D stack:27168 pid:16204 ppid:2 flags:0x00004000 Workqueue: events_unbound fsnotify_connector_destroy_workfn Call Trace: context_switch kernel/sched/core.c:5343 [inline] __schedule+0x187b/0x4900 kernel/sched/core.c:6669 schedule+0xc3/0x180 kernel/sched/core.c:6745 schedule_timeout+0xb0/0x310 kernel/time/timer.c:2143 do_wait_for_common+0x449/0x5f0 kernel/sched/completion.c:85 __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x4a/0x60 kernel/sched/completion.c:138 __synchronize_srcu+0x340/0x3f0 kernel/rcu/srcutree.c:1360 fsnotify_connector_destroy_workfn+0x44/0xa0 fs/notify/mark.c:208 process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2405 worker_thread+0xa63/0x1210 kernel/workqueue.c:2552 kthread+0x2b8/0x350 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task syz-executor.1:16237 blocked for more than 144 seconds. Not tainted 6.4.0-rc6-syzkaller-00035-g15adb51c04cc #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:24960 pid:16237 ppid:5003 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5343 [inline] __schedule+0x187b/0x4900 kernel/sched/core.c:6669 schedule+0xc3/0x180 kernel/sched/core.c:6745 exp_funnel_lock kernel/rcu/tree_exp.h:316 [inline] synchronize_rcu_expedited+0x77c/0x890 kernel/rcu/tree_exp.h:992 synchronize_rcu+0x136/0x3e0 kernel/rcu/tree.c:3499 mousedev_detach_client drivers/input/mousedev.c:517 [inline] mousedev_release+0x143/0x180 drivers/input/mousedev.c:525 __fput+0x3b7/0x890 fs/file_table.c:321 task_work_run+0x24a/0x300 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:297 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fef0943e04b RSP: 002b:00007ffd38491600 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000006 RCX: 00007fef0943e04b RDX: 00007fef09002f98 RSI: ffffffffffffffff RDI: 0000000000000005 RBP: 00007fef095ad980 R08: 0000000000000000 R09: 00007fef09000000 R10: 00007fef09002fa0 R11: 0000000000000293 R12: 00000000001d8deb R13: 00007ffd38491700 R14: 00007fef095abf80 R15: 0000000000000032 INFO: task syz-executor.5:16242 blocked for more than 145 seconds. Not tainted 6.4.0-rc6-syzkaller-00035-g15adb51c04cc #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:24960 pid:16242 ppid:16187 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5343 [inline] __schedule+0x187b/0x4900 kernel/sched/core.c:6669 schedule+0xc3/0x180 kernel/sched/core.c:6745 exp_funnel_lock kernel/rcu/tree_exp.h:316 [inline] synchronize_rcu_expedited+0x77c/0x890 kernel/rcu/tree_exp.h:992 synchronize_rcu+0x136/0x3e0 kernel/rcu/tree.c:3499 mousedev_detach_client drivers/input/mousedev.c:517 [inline] mousedev_release+0x143/0x180 drivers/input/mousedev.c:525 __fput+0x3b7/0x890 fs/file_table.c:321 task_work_run+0x24a/0x300 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:297 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fe100c3e04b RSP: 002b:00007fff00e68d70 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000006 RCX: 00007fe100c3e04b RDX: 00007fe100802f98 RSI: ffffffffffffffff RDI: 0000000000000005 RBP: 00007fe100dad980 R08: 0000000000000000 R09: 00007fe100800000 R10: 00007fe100802fa0 R11: 0000000000000293 R12: 00000000001d8e23 R13: 00007fff00e68e70 R14: 00007fe100dabf80 R15: 0000000000000032 INFO: task syz-executor.3:16253 blocked for more than 145 seconds. Not tainted 6.4.0-rc6-syzkaller-00035-g15adb51c04cc #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:23136 pid:16253 ppid:5258 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5343 [inline] __schedule+0x187b/0x4900 kernel/sched/core.c:6669 schedule+0xc3/0x180 kernel/sched/core.c:6745 exp_funnel_lock kernel/rcu/tree_exp.h:316 [inline] synchronize_rcu_expedited+0x77c/0x890 kernel/rcu/tree_exp.h:992 synchronize_rcu+0x136/0x3e0 kernel/rcu/tree.c:3499 mousedev_detach_client drivers/input/mousedev.c:517 [inline] mousedev_release+0x143/0x180 drivers/input/mousedev.c:525 __fput+0x3b7/0x890 fs/file_table.c:321 task_work_run+0x24a/0x300 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:297 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fbd73a3e04b RSP: 002b:00007fffa95283a0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000006 RCX: 00007fbd73a3e04b RDX: 00007fbd73602f98 RSI: ffffffffffffffff RDI: 0000000000000005 RBP: 00007fbd73bad980 R08: 0000000000000000 R09: 00007fbd73600000 R10: 00007fbd73602fa0 R11: 0000000000000293 R12: 00000000001d8ee1 R13: 00007fffa95284a0 R14: 00007fbd73babf80 R15: 0000000000000032 INFO: task syz-executor.2:16256 blocked for more than 146 seconds. Not tainted 6.4.0-rc6-syzkaller-00035-g15adb51c04cc #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:24960 pid:16256 ppid:10387 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5343 [inline] __schedule+0x187b/0x4900 kernel/sched/core.c:6669 schedule+0xc3/0x180 kernel/sched/core.c:6745 exp_funnel_lock kernel/rcu/tree_exp.h:316 [inline] synchronize_rcu_expedited+0x77c/0x890 kernel/rcu/tree_exp.h:992 synchronize_rcu+0x136/0x3e0 kernel/rcu/tree.c:3499 mousedev_detach_client drivers/input/mousedev.c:517 [inline] mousedev_release+0x143/0x180 drivers/input/mousedev.c:525 __fput+0x3b7/0x890 fs/file_table.c:321 task_work_run+0x24a/0x300 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:297 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f5db003e04b RSP: 002b:00007ffcc48578e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000006 RCX: 00007f5db003e04b RDX: 00007f5dafc02f98 RSI: ffffffffffffffff RDI: 0000000000000005 RBP: 00007f5db01ad980 R08: 0000000000000000 R09: 00007f5dafc00000 R10: 00007f5dafc02fa0 R11: 0000000000000293 R12: 00000000001d8eee R13: 00007ffcc48579e0 R14: 00007f5db01abf80 R15: 0000000000000032 INFO: task syz-executor.0:16258 blocked for more than 147 seconds. Not tainted 6.4.0-rc6-syzkaller-00035-g15adb51c04cc #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:24960 pid:16258 ppid:7496 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5343 [inline] __schedule+0x187b/0x4900 kernel/sched/core.c:6669 schedule+0xc3/0x180 kernel/sched/core.c:6745 exp_funnel_lock kernel/rcu/tree_exp.h:316 [inline] synchronize_rcu_expedited+0x77c/0x890 kernel/rcu/tree_exp.h:992 synchronize_rcu+0x136/0x3e0 kernel/rcu/tree.c:3499 mousedev_detach_client drivers/input/mousedev.c:517 [inline] mousedev_release+0x143/0x180 drivers/input/mousedev.c:525 __fput+0x3b7/0x890 fs/file_table.c:321 task_work_run+0x24a/0x300 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:297 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f57c623e04b RSP: 002b:00007ffd3317f3d0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000006 RCX: 00007f57c623e04b RDX: 00007f57c5e04050 RSI: ffffffffffffffff RDI: 0000000000000005 RBP: 00007f57c63ad980 R08: 0000000000000000 R09: 00007f57c5e00000 R10: 00007f57c5e04058 R11: 0000000000000293 R12: 00000000001d8f6c R13: 00007ffd3317f4d0 R14: 00007f57c63abf80 R15: 0000000000000032 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/13: #0: ffffffff8cf276f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518 1 lock held by rcu_tasks_trace/14: #0: ffffffff8cf27ab0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518 3 locks held by kworker/1:0/22: #0: ffff88802835cd38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378 #1: ffffc900001c7d20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380 #2: ffffffff8e09ff08 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16b0 net/ipv6/addrconf.c:4088 1 lock held by khungtaskd/28: #0: ffffffff8cf27520 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 1 lock held by khugepaged/34: #0: ffffffff8cfd0bc8 ( lock #3 ){+.+.}-{3:3} , at: __lru_add_drain_all+0x66/0x570 mm/swap.c:852 2 locks held by kworker/u4:2/41: #0: ffff888012479138 ( (wq_completion)events_unbound ){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378 #1: ffffc90000b27d20 ( (reaper_work).work ){+.+.}-{0:0} , at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380 4 locks held by kworker/u4:6/2798: #0: ffff88801425b138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378 #1: ffffc9000ce37d20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380 #2: ffffffff8e093c50 ( pernet_ops_rwsem ){++++}-{3:3} , at: cleanup_net+0xf5/0xb80 net/core/net_namespace.c:576 #3: ffffffff8e09ff08 (rtnl_mutex){+.+.}-{3:3} , at: ip6_tnl_exit_batch_net+0xc4/0x5e0 net/ipv6/ip6_tunnel.c:2275 2 locks held by getty/4750: #0: ffff88802d39a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc900015b02f0 ( &ldata->atomic_read_lock ){+.+.}-{3:3} , at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2176 7 locks held by kworker/0:3/5034: 3 locks held by kworker/0:2/7381: #0: ffff88802835cd38 ( (wq_completion)ipv6_addrconf){+.+.}-{0:0} , at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378 #1: ffffc900037ffd20 ( (work_completion)(&(&ifa->dad_work)->work) ){+.+.}-{0:0} , at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380 #2: ffffffff8e09ff08 ( rtnl_mutex ){+.+.}-{3:3} , at: addrconf_dad_work+0xd0/0x16b0 net/ipv6/addrconf.c:4088 3 locks held by kworker/1:2/16125: #0: ffff888012471d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378 #1: ffffc900056afd20 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380 #2: ffffffff8e09ff08 (rtnl_mutex){+.+.}-{3:3}, at: reg_check_chans_work+0x91/0xda0 net/wireless/reg.c:2455 2 locks held by kworker/u4:1/16204: #0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2378 #1: ffffc9000337fd20 (connector_reaper_work){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2380 1 lock held by syz-executor.4/16236: #0: ffffffff8cf2cbf8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline] ffffffff8cf2cbf8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46c/0x890 kernel/rcu/tree_exp.h:992 1 lock held by dhcpcd/16260: #0: ffff88807da7a130 ( sk_lock-AF_PACKET ){+.+.}-{0:0} , at: lock_sock include/net/sock.h:1709 [inline] , at: packet_do_bind+0x32/0xc10 net/packet/af_packet.c:3202 1 lock held by dhcpcd/16261: #0: ffff88806f730130 ( sk_lock-AF_PACKET ){+.+.}-{0:0} , at: lock_sock include/net/sock.h:1709 [inline] , at: packet_do_bind+0x32/0xc10 net/packet/af_packet.c:3202 1 lock held by dhcpcd/16262: #0: ffff888023084130 ( sk_lock-AF_PACKET ){+.+.}-{0:0} , at: lock_sock include/net/sock.h:1709 [inline] , at: packet_do_bind+0x32/0xc10 net/packet/af_packet.c:3202 1 lock held by dhcpcd/16263: #0: ffff888023082130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1709 [inline] (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xc10 net/packet/af_packet.c:3202 1 lock held by dhcpcd/16264: #0: ffff8880590ce130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1709 [inline] (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xc10 net/packet/af_packet.c:3202 1 lock held by dhcpcd/16265: #0: ffff888078a26130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1709 [inline] #0: ffff888078a26130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xc10 net/packet/af_packet.c:3202 1 lock held by syz-executor.5/16272: #0: ffffffff8e09ff08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e09ff08 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ce/0xf40 net/core/rtnetlink.c:6414 1 lock held by syz-executor.1/16275: #0: ffffffff8e09ff08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e09ff08 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ce/0xf40 net/core/rtnetlink.c:6414 1 lock held by syz-executor.4/16280: #0: ffffffff8e09ff08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e09ff08 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ce/0xf40 net/core/rtnetlink.c:6414 1 lock held by syz-executor.3/16282: #0: ffffffff8e09ff08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e09ff08 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ce/0xf40 net/core/rtnetlink.c:6414 1 lock held by syz-executor.2/16284: #0: ffffffff8e09ff08 ( rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ce/0xf40 net/core/rtnetlink.c:6414 1 lock held by syz-executor.0/16285: #0: ffffffff8e09ff08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ce/0xf40 net/core/rtnetlink.c:6414 1 lock held by syz-executor.5/16297: #0: ffffffff8e09ff08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e09ff08 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ce/0xf40 net/core/rtnetlink.c:6414 1 lock held by syz-executor.4/16300: #0: ffffffff8e09ff08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e09ff08 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ce/0xf40 net/core/rtnetlink.c:6414 1 lock held by syz-executor.1/16301: #0: ffffffff8e09ff08 ( rtnl_mutex ){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] ){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ce/0xf40 net/core/rtnetlink.c:6414 1 lock held by syz-executor.3/16305: #0: ffffffff8e09ff08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e09ff08 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ce/0xf40 net/core/rtnetlink.c:6414 1 lock held by syz-executor.2/16307: #0: ffffffff8e09ff08 (rtnl_mutex){+.+.}-{3:3} , at: rtnl_lock net/core/rtnetlink.c:78 [inline] , at: rtnetlink_rcv_msg+0x7ce/0xf40 net/core/rtnetlink.c:6414 1 lock held by syz-executor.0/16308: #0: ffffffff8e09ff08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e09ff08 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ce/0xf40 net/core/rtnetlink.c:6414 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc6-syzkaller-00035-g15adb51c04cc #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x187/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xec2/0xf00 kernel/hung_task.c:379 kthread+0x2b8/0x350 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 16124 Comm: kworker/1:1 Not tainted 6.4.0-rc6-syzkaller-00035-g15adb51c04cc #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 Workqueue: events_power_efficient wg_ratelimiter_gc_entries RIP: 0010:lock_is_held_type+0x20/0x190 kernel/locking/lockdep.c:5761 Code: fc ff ff 0f 1f 80 00 00 00 00 f3 0f 1e fa 55 41 57 41 56 41 55 41 54 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 ff ff ff ff 83 3d d8 68 a6 03 00 0f 84 00 01 00 00 65 8b 05 3f RSP: 0018:ffffc9000311fa98 EFLAGS: 00000282 RAX: 8bf16030a62edb00 RBX: 0000000000000b1c RCX: ffff888027790000 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffffff8cf274a0 RBP: ffffc9000311fbf8 R08: dffffc0000000000 R09: fffffbfff1b1e689 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: dffffc0000000000 R14: 000000000000004e R15: 1ffff92000623f64 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd200f0c866 CR3: 000000000cd30000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_is_held include/linux/lockdep.h:288 [inline] __might_resched+0xf4/0x780 kernel/sched/core.c:10115 wg_ratelimiter_gc_entries+0x3cd/0x470 drivers/net/wireguard/ratelimiter.c:78 process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2405 worker_thread+0xa63/0x1210 kernel/workqueue.c:2552 kthread+0x2b8/0x350 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308