10 [ 156.903001][ C0] ? wq_worker_sleeping+0x24/0x240 [ 156.908164][ C0] ? kthread_data+0x52/0xd0 [ 156.912686][ C0] ? schedule+0x90/0x320 [ 156.916970][ C0] ? wq_worker_sleeping+0x66/0x240 [ 156.922100][ C0] ? schedule+0x90/0x320 [ 156.926390][ C0] schedule+0x14b/0x320 [ 156.930567][ C0] schedule_preempt_disabled+0x13/0x30 [ 156.936103][ C0] __mutex_lock+0x6a4/0xd70 [ 156.940623][ C0] ? mark_lock+0x9a/0x360 [ 156.945011][ C0] ? __mutex_lock+0x527/0xd70 [ 156.949721][ C0] ? addrconf_dad_work+0xd0/0x16f0 [ 156.954885][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 156.960032][ C0] ? get_rtnl_holder+0x144/0x190 [ 156.965020][ C0] addrconf_dad_work+0xd0/0x16f0 [ 156.970069][ C0] ? preempt_schedule+0xe1/0xf0 [ 156.974965][ C0] ? __pfx_preempt_schedule+0x10/0x10 [ 156.980356][ C0] ? __pfx_addrconf_dad_work+0x10/0x10 [ 156.985888][ C0] ? preempt_schedule_thunk+0x1a/0x30 [ 156.991293][ C0] ? process_scheduled_works+0x945/0x1830 [ 156.997073][ C0] process_scheduled_works+0xa2c/0x1830 [ 157.002688][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 157.008826][ C0] ? assign_work+0x364/0x3d0 [ 157.013440][ C0] worker_thread+0x86d/0xd40 [ 157.018094][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 157.024038][ C0] ? __kthread_parkme+0x169/0x1d0 [ 157.029088][ C0] ? __pfx_worker_thread+0x10/0x10 [ 157.034242][ C0] kthread+0x2f0/0x390 [ 157.038326][ C0] ? __pfx_worker_thread+0x10/0x10 [ 157.043454][ C0] ? __pfx_kthread+0x10/0x10 [ 157.048083][ C0] ret_from_fork+0x4b/0x80 [ 157.052527][ C0] ? __pfx_kthread+0x10/0x10 [ 157.057162][ C0] ret_from_fork_asm+0x1a/0x30 [ 157.061975][ C0] [ 157.065049][ C0] DEBUG: waiting rtnl_mutex for 1379 jiffies. [ 157.071126][ C0] task:syz-executor state:D stack:21728 pid:5213 tgid:5213 ppid:5209 flags:0x00004002 [ 157.081340][ C0] Call Trace: [ 157.084664][ C0] [ 157.087622][ C0] __schedule+0x1800/0x4a60 [ 157.092175][ C0] ? __pfx___schedule+0x10/0x10 [ 157.097069][ C0] ? __pfx_lock_release+0x10/0x10 [ 157.102119][ C0] ? __mutex_trylock_common+0x92/0x2e0 [ 157.107972][ C0] ? schedule+0x90/0x320 [ 157.112247][ C0] schedule+0x14b/0x320 [ 157.116477][ C0] schedule_preempt_disabled+0x13/0x30 [ 157.121975][ C0] __mutex_lock+0x6a4/0xd70 [ 157.126553][ C0] ? __mutex_lock+0x527/0xd70 [ 157.131258][ C0] ? unregister_netdevice_notifier_net+0x89/0x3a0 [ 157.137715][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 157.142777][ C0] ? get_rtnl_holder+0x144/0x190 [ 157.147773][ C0] unregister_netdevice_notifier_net+0x89/0x3a0 [ 157.154088][ C0] ? _raw_spin_unlock+0x28/0x50 [ 157.158967][ C0] ? mntput_no_expire+0x2da/0x850 [ 157.164053][ C0] ? __pfx_unregister_netdevice_notifier_net+0x10/0x10 [ 157.170929][ C0] ? __pfx_mntput_no_expire+0x10/0x10 [ 157.176363][ C0] ? _raw_spin_unlock+0x28/0x50 [ 157.181233][ C0] ? simple_release_fs+0x9c/0xd0 [ 157.186227][ C0] nsim_dev_hwstats_exit+0x81/0x290 [ 157.191451][ C0] ? kfree+0x149/0x360 [ 157.195570][ C0] nsim_dev_reload_destroy+0x2ad/0x490 [ 157.201061][ C0] ? __pfx_nsim_bus_remove+0x10/0x10 [ 157.206387][ C0] nsim_drv_remove+0x58/0x160 [ 157.211102][ C0] device_release_driver_internal+0x4a9/0x7c0 [ 157.217282][ C0] bus_remove_device+0x34f/0x420 [ 157.222256][ C0] device_del+0x57a/0x9b0 [ 157.226654][ C0] ? __pfx_device_del+0x10/0x10 [ 157.231538][ C0] device_unregister+0x20/0xc0 [ 157.236353][ C0] del_device_store+0x363/0x480 [ 157.241232][ C0] ? __pfx_del_device_store+0x10/0x10 [ 157.246660][ C0] ? sysfs_kf_write+0x182/0x2a0 [ 157.251535][ C0] ? bus_attr_store+0x4f/0xa0 [ 157.256259][ C0] ? __pfx_sysfs_kf_write+0x10/0x10 [ 157.261479][ C0] kernfs_fop_write_iter+0x3a1/0x500 [ 157.266853][ C0] vfs_write+0xa72/0xc90 [ 157.271127][ C0] ? __pfx_kernfs_fop_write_iter+0x10/0x10 [ 157.276980][ C0] ? __pfx_vfs_write+0x10/0x10 [ 157.281777][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 157.287022][ C0] ? blkcg_maybe_throttle_current+0x1ab/0xb80 [ 157.293121][ C0] ksys_write+0x1a0/0x2c0 [ 157.297660][ C0] ? __pfx_ksys_write+0x10/0x10 [ 157.302543][ C0] ? do_syscall_64+0x100/0x230 [ 157.307382][ C0] ? do_syscall_64+0xb6/0x230 [ 157.312093][ C0] do_syscall_64+0xf3/0x230 [ 157.316737][ C0] ? clear_bhb_loop+0x35/0x90 [ 157.321440][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 157.327400][ C0] RIP: 0033:0x7f49cd7746df [ 157.331926][ C0] RSP: 002b:00007ffce9b11af0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 157.340394][ C0] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f49cd7746df [ 157.348415][ C0] RDX: 0000000000000001 RSI: 00007ffce9b11b40 RDI: 0000000000000005 [ 157.356427][ C0] RBP: 00007f49cd7e45b2 R08: 0000000000000000 R09: 00007ffce9b11947 [ 157.364445][ C0] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 [ 157.372430][ C0] R13: 00007ffce9b11b40 R14: 00007f49ce434620 R15: 0000000000000003 [ 157.380464][ C0] [ 157.383496][ C0] [ 157.383496][ C0] Showing all locks held in the system: [ 157.391250][ C0] 4 locks held by kworker/u8:3/53: [ 157.396410][ C0] 5 locks held by kworker/u8:5/953: [ 157.401646][ C0] 3 locks held by kworker/u8:8/2851: [ 157.406993][ C0] #0: ffff888029d05148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 157.418665][ C0] #1: ffffc90009a97d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 157.431542][ C0] #2: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 157.441041][ C0] 2 locks held by kworker/1:2/4515: [ 157.446286][ C0] 2 locks held by dhcpcd/4767: [ 157.451076][ C0] #0: ffff88801bb47678 (nlk_cb_mutex-ROUTE){+.+.}-{3:3}, at: __netlink_dump_start+0x119/0x790 [ 157.461530][ C0] #1: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_dumpit+0x9e/0x210 [ 157.470423][ C0] 2 locks held by getty/4850: [ 157.475148][ C0] #0: ffff88802a85f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 157.484979][ C0] #1: ffffc900031232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 157.495158][ C0] 7 locks held by syz-executor/5213: [ 157.500481][ C0] #0: ffff88802a02a420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 [ 157.509507][ C0] #1: ffff88807f7a0888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 [ 157.519384][ C0] #2: ffff88802286e2d8 (kn->active#53){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 [ 157.529599][ C0] #3: ffffffff8ef0c528 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 [ 157.539972][ C0] #4: ffff8880515300e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xce/0x7c0 [ 157.550593][ C0] #5: ffff888051531250 (&devlink->lock_key){+.+.}-{3:3}, at: nsim_drv_remove+0x50/0x160 [ 157.560511][ C0] #6: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: unregister_netdevice_notifier_net+0x89/0x3a0 [ 157.571316][ C0] 4 locks held by syz-executor/5218: [ 157.576649][ C0] #0: ffff88802a02a420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 [ 157.585636][ C0] #1: ffff88807beca488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 [ 157.595556][ C0] #2: ffff88802286e2d8 (kn->active#53){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 [ 157.605652][ C0] #3: ffffffff8ef0c528 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 [ 157.616005][ C0] 4 locks held by syz-executor/5217: [ 157.621296][ C0] #0: ffff88802a02a420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 [ 157.630266][ C0] #1: ffff88804e279c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 [ 157.640085][ C0] #2: ffff88802286e2d8 (kn->active#53){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 [ 157.650179][ C0] #3: ffffffff8ef0c528 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 [ 157.660619][ C0] 3 locks held by kworker/1:4/5269: [ 157.665871][ C0] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 157.676949][ C0] #1: ffffc9000362fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 157.687998][ C0] #2: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 157.697046][ C0] 3 locks held by kworker/u8:9/5311: [ 157.702342][ C0] 1 lock held by syz.1.35/5351: [ 157.707227][ C0] 1 lock held by syz.1.35/5353: [ 157.712083][ C0] 1 lock held by syz.0.36/5352: [ 157.716970][ C0] #0: ffff88801e91b118 (&mm->mmap_lock){++++}-{3:3}, at: vm_mmap_pgoff+0x17c/0x3d0 [ 157.726444][ C0] 5 locks held by syz.0.36/5354: [ 157.731385][ C0] #0: ffff88801e91b118 (&mm->mmap_lock){++++}-{3:3}, at: __mm_populate+0x1b0/0x460 [ 157.740854][ C0] #1: ffffffff8e337a60 (rcu_read_lock){....}-{1:2}, at: __pte_offset_map+0x82/0x380 [ 157.750408][ C0] #2: ffff88801ffaf8b8 (ptlock_ptr(ptdesc)#2){+.+.}-{2:2}, at: __pte_offset_map_lock+0x1ba/0x300 [ 157.761110][ C0] #3: ffffc90000007c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 157.771277][ C0] #4: ffffffff8e337a60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 157.781197][ C0] [ 157.783534][ C0] ============================================= [ 157.783534][ C0] [ 158.833834][ C0] DEBUG: waiting rtnl_mutex for 1355 jiffies. [ 158.839952][ C0] task:kworker/1:4 state:D stack:25104 pid:5269 tgid:5269 ppid:2 flags:0x00004000 [ 158.850216][ C0] Workqueue: events linkwatch_event [ 158.855491][ C0] Call Trace: [ 158.858786][ C0] [ 158.861733][ C0] __schedule+0x1800/0x4a60 [ 158.866314][ C0] ? __pfx___schedule+0x10/0x10 [ 158.871247][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 158.877288][ C0] ? __pfx_lock_release+0x10/0x10 [ 158.882341][ C0] ? kick_pool+0x1bd/0x620 [ 158.886819][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 158.892129][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 158.897378][ C0] ? schedule+0x90/0x320 [ 158.901657][ C0] schedule+0x14b/0x320 [ 158.905879][ C0] schedule_preempt_disabled+0x13/0x30 [ 158.911363][ C0] __mutex_lock+0x6a4/0xd70 [ 158.915924][ C0] ? __mutex_lock+0x527/0xd70 [ 158.920646][ C0] ? linkwatch_event+0xe/0x60 [ 158.925394][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 158.930463][ C0] ? get_rtnl_holder+0x144/0x190 [ 158.935458][ C0] ? process_scheduled_works+0x945/0x1830 [ 158.941199][ C0] linkwatch_event+0xe/0x60 [ 158.945750][ C0] process_scheduled_works+0xa2c/0x1830 [ 158.951700][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 158.957831][ C0] ? assign_work+0x364/0x3d0 [ 158.962505][ C0] worker_thread+0x86d/0xd40 [ 158.967172][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 158.973521][ C0] ? __kthread_parkme+0x169/0x1d0 [ 158.978590][ C0] ? __pfx_worker_thread+0x10/0x10 [ 158.983718][ C0] kthread+0x2f0/0x390 [ 158.987823][ C0] ? __pfx_worker_thread+0x10/0x10 [ 158.992949][ C0] ? __pfx_kthread+0x10/0x10 [ 158.997568][ C0] ret_from_fork+0x4b/0x80 [ 159.002010][ C0] ? __pfx_kthread+0x10/0x10 [ 159.006654][ C0] ret_from_fork_asm+0x1a/0x30 [ 159.011449][ C0] [ 159.014496][ C0] DEBUG: waiting rtnl_mutex for 850 jiffies. [ 159.020477][ C0] task:dhcpcd state:D stack:20672 pid:4767 tgid:4767 ppid:4766 flags:0x00000002 [ 159.030667][ C0] Call Trace: [ 159.033996][ C0] [ 159.036933][ C0] __schedule+0x1800/0x4a60 [ 159.041445][ C0] ? __pfx___schedule+0x10/0x10 [ 159.046333][ C0] ? __pfx_lock_release+0x10/0x10 [ 159.051395][ C0] ? __mutex_trylock_common+0x92/0x2e0 [ 159.056899][ C0] ? schedule+0x90/0x320 [ 159.061152][ C0] schedule+0x14b/0x320 [ 159.065369][ C0] schedule_preempt_disabled+0x13/0x30 [ 159.070852][ C0] __mutex_lock+0x6a4/0xd70 [ 159.075392][ C0] ? __mutex_lock+0x527/0xd70 [ 159.080061][ C0] ? rtnl_dumpit+0x9e/0x210 [ 159.084590][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 159.089663][ C0] ? __alloc_skb+0x28f/0x440 [ 159.094297][ C0] ? get_rtnl_holder+0x144/0x190 [ 159.099251][ C0] ? __pfx_rtnl_dump_ifinfo+0x10/0x10 [ 159.104674][ C0] rtnl_dumpit+0x9e/0x210 [ 159.109030][ C0] netlink_dump+0x647/0xd80 [ 159.113529][ C0] ? __pfx_netlink_dump+0x10/0x10 [ 159.118603][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 159.123651][ C0] __netlink_dump_start+0x5a2/0x790 [ 159.128903][ C0] ? __pfx_rtnl_dump_ifinfo+0x10/0x10 [ 159.134309][ C0] rtnetlink_rcv_msg+0xb42/0xd00 [ 159.139242][ C0] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 159.144725][ C0] ? __pfx_rtnl_dumpit+0x10/0x10 [ 159.149687][ C0] ? __pfx_rtnl_dump_ifinfo+0x10/0x10 [ 159.155188][ C0] netlink_rcv_skb+0x1e3/0x430 [ 159.159971][ C0] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 159.165467][ C0] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 159.170778][ C0] ? netlink_deliver_tap+0x2e/0x1b0 [ 159.176015][ C0] netlink_unicast+0x7f6/0x990 [ 159.180804][ C0] ? __pfx_netlink_unicast+0x10/0x10 [ 159.186122][ C0] ? __virt_addr_valid+0x183/0x530 [ 159.191244][ C0] ? __check_object_size+0x49c/0x900 [ 159.196560][ C0] ? bpf_lsm_netlink_send+0x9/0x10 [ 159.201862][ C0] netlink_sendmsg+0x8e4/0xcb0 [ 159.207059][ C0] ? __pfx_netlink_sendmsg+0x10/0x10 [ 159.212366][ C0] ? aa_sock_msg_perm+0x91/0x160 [ 159.217343][ C0] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 159.222637][ C0] ? security_socket_sendmsg+0x87/0xb0 [ 159.228156][ C0] ? __pfx_netlink_sendmsg+0x10/0x10 [ 159.233640][ C0] __sock_sendmsg+0x221/0x270 [ 159.238369][ C0] __sys_sendto+0x3a4/0x4f0 [ 159.242903][ C0] ? __pfx___sys_sendto+0x10/0x10 [ 159.247994][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 159.254015][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 159.260356][ C0] __x64_sys_sendto+0xde/0x100 [ 159.265178][ C0] do_syscall_64+0xf3/0x230 [ 159.269698][ C0] ? clear_bhb_loop+0x35/0x90 [ 159.274413][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 159.280330][ C0] RIP: 0033:0x7f586e901ad7 [ 159.284782][ C0] RSP: 002b:00007ffc3a45a318 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 159.293237][ C0] RAX: ffffffffffffffda RBX: 00007ffc3a45b440 RCX: 00007f586e901ad7 [ 159.301270][ C0] RDX: 0000000000000014 RSI: 00007ffc3a45b360 RDI: 0000000000000018 [ 159.309303][ C0] RBP: 00007ffc3a45b3d0 R08: 00007ffc3a45b344 R09: 000000000000000c [ 159.317331][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000012 [ 159.325424][ C0] R13: 00007ffc3a45b344 R14: 00007ffc3a45b360 R15: 0000000000000105 [ 159.333397][ C0] [ 159.336447][ C0] DEBUG: holding rtnl_mutex for 1616 jiffies. [ 159.342520][ C0] task:kworker/u8:3 state:D stack:21808 pid:53 tgid:53 ppid:2 flags:0x00004000 [ 159.352719][ C0] Workqueue: netns cleanup_net [ 159.357533][ C0] Call Trace: [ 159.360801][ C0] [ 159.363719][ C0] __schedule+0x1800/0x4a60 [ 159.368279][ C0] ? __pfx___schedule+0x10/0x10 [ 159.373148][ C0] ? __pfx_lock_release+0x10/0x10 [ 159.378219][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 159.384150][ C0] ? kthread_data+0x52/0xd0 [ 159.389093][ C0] ? wq_worker_sleeping+0x66/0x240 [ 159.394275][ C0] ? schedule+0x90/0x320 [ 159.398547][ C0] schedule+0x14b/0x320 [ 159.402701][ C0] synchronize_rcu_expedited+0x684/0x830 [ 159.408372][ C0] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 159.414669][ C0] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 159.419948][ C0] ? __pfx___might_resched+0x10/0x10 [ 159.425439][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 159.431444][ C0] ? __pfx_autoremove_wake_function+0x10/0x10 [ 159.437548][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 159.443919][ C0] synchronize_rcu+0x11b/0x360 [ 159.448690][ C0] ? __pfx_synchronize_rcu+0x10/0x10 [ 159.454018][ C0] lockdep_unregister_key+0x4b7/0x540 [ 159.459456][ C0] ? __pfx_lockdep_unregister_key+0x10/0x10 [ 159.465407][ C0] ? rcu_is_watching+0x15/0xb0 [ 159.470199][ C0] ? qdisc_reset+0x3bf/0x5b0 [ 159.474849][ C0] __qdisc_destroy+0x165/0x410 [ 159.479644][ C0] dev_shutdown+0x9b/0x450 [ 159.484128][ C0] unregister_netdevice_many_notify+0x97b/0x1c40 [ 159.490487][ C0] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 159.497304][ C0] ? unregister_netdevice_queue+0x26b/0x370 [ 159.503218][ C0] ? batadv_softif_destroy_netlink+0x1e3/0x270 [ 159.509435][ C0] default_device_exit_batch+0xa0f/0xa90 [ 159.515107][ C0] ? __pfx___might_resched+0x10/0x10 [ 159.520396][ C0] ? __pfx_default_device_exit_batch+0x10/0x10 [ 159.526586][ C0] ? cfg802154_pernet_exit+0xc3/0xe0 [ 159.531888][ C0] ? __pfx_default_device_exit_batch+0x10/0x10 [ 159.538076][ C0] cleanup_net+0x89d/0xcc0 [ 159.542510][ C0] ? __pfx_cleanup_net+0x10/0x10 [ 159.547614][ C0] ? process_scheduled_works+0x945/0x1830 [ 159.553360][ C0] process_scheduled_works+0xa2c/0x1830 [ 159.559001][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 159.565030][ C0] ? assign_work+0x364/0x3d0 [ 159.569629][ C0] worker_thread+0x86d/0xd40 [ 159.574277][ C0] ? __kthread_parkme+0x169/0x1d0 [ 159.579320][ C0] ? __pfx_worker_thread+0x10/0x10 [ 159.584470][ C0] kthread+0x2f0/0x390 [ 159.588554][ C0] ? __pfx_worker_thread+0x10/0x10 [ 159.593660][ C0] ? __pfx_kthread+0x10/0x10 [ 159.598295][ C0] ret_from_fork+0x4b/0x80 [ 159.602735][ C0] ? __pfx_kthread+0x10/0x10 [ 159.607494][ C0] ret_from_fork_asm+0x1a/0x30 [ 159.612322][ C0] [ 159.615468][ C0] DEBUG: waiting rtnl_mutex for 1644 jiffies. [ 159.621615][ C0] task:kworker/u8:8 state:D stack:21352 pid:2851 tgid:2851 ppid:2 flags:0x00004000 [ 159.631824][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 159.637859][ C0] Call Trace: [ 159.641130][ C0] [ 159.644092][ C0] __schedule+0x1800/0x4a60 [ 159.648634][ C0] ? __pfx___schedule+0x10/0x10 [ 159.653486][ C0] ? __pfx_lock_release+0x10/0x10 [ 159.658551][ C0] ? wq_worker_sleeping+0x24/0x240 [ 159.663696][ C0] ? kthread_data+0x52/0xd0 [ 159.668232][ C0] ? schedule+0x90/0x320 [ 159.672495][ C0] ? wq_worker_sleeping+0x66/0x240 [ 159.677651][ C0] ? schedule+0x90/0x320 [ 159.681916][ C0] schedule+0x14b/0x320 [ 159.686108][ C0] schedule_preempt_disabled+0x13/0x30 [ 159.691585][ C0] __mutex_lock+0x6a4/0xd70 [ 159.696131][ C0] ? mark_lock+0x9a/0x360 [ 159.700485][ C0] ? __mutex_lock+0x527/0xd70 [ 159.705202][ C0] ? addrconf_dad_work+0xd0/0x16f0 [ 159.710348][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 159.715607][ C0] ? get_rtnl_holder+0x144/0x190 [ 159.720563][ C0] addrconf_dad_work+0xd0/0x16f0 [ 159.725547][ C0] ? preempt_schedule+0xe1/0xf0 [ 159.730504][ C0] ? __pfx_preempt_schedule+0x10/0x10 [ 159.735908][ C0] ? __pfx_addrconf_dad_work+0x10/0x10 [ 159.741388][ C0] ? preempt_schedule_thunk+0x1a/0x30 [ 159.746820][ C0] ? process_scheduled_works+0x945/0x1830 [ 159.752555][ C0] process_scheduled_works+0xa2c/0x1830 [ 159.758165][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 159.764206][ C0] ? assign_work+0x364/0x3d0 [ 159.768800][ C0] worker_thread+0x86d/0xd40 [ 159.773383][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 159.779306][ C0] ? __kthread_parkme+0x169/0x1d0 [ 159.784371][ C0] ? __pfx_worker_thread+0x10/0x10 [ 159.789471][ C0] kthread+0x2f0/0x390 [ 159.793527][ C0] ? __pfx_worker_thread+0x10/0x10 [ 159.798666][ C0] ? __pfx_kthread+0x10/0x10 [ 159.803267][ C0] ret_from_fork+0x4b/0x80 [ 159.807716][ C0] ? __pfx_kthread+0x10/0x10 [ 159.812317][ C0] ret_from_fork_asm+0x1a/0x30 [ 159.817130][ C0] [ 159.820241][ C0] DEBUG: waiting rtnl_mutex for 1654 jiffies. [ 159.826354][ C0] task:syz-executor state:D stack:21728 pid:5213 tgid:5213 ppid:5209 flags:0x00004002 [ 159.836595][ C0] Call Trace: [ 159.839884][ C0] [ 159.842809][ C0] __schedule+0x1800/0x4a60 [ 159.847405][ C0] ? __pfx___schedule+0x10/0x10 [ 159.852281][ C0] ? __pfx_lock_release+0x10/0x10 [ 159.857356][ C0] ? __mutex_trylock_common+0x92/0x2e0 [ 159.862842][ C0] ? schedule+0x90/0x320 [ 159.867117][ C0] schedule+0x14b/0x320 [ 159.871299][ C0] schedule_preempt_disabled+0x13/0x30 [ 159.876792][ C0] __mutex_lock+0x6a4/0xd70 [ 159.881314][ C0] ? __mutex_lock+0x527/0xd70 [ 159.886030][ C0] ? unregister_netdevice_notifier_net+0x89/0x3a0 [ 159.892456][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 159.897522][ C0] ? get_rtnl_holder+0x144/0x190 [ 159.902468][ C0] unregister_netdevice_notifier_net+0x89/0x3a0 [ 159.908739][ C0] ? _raw_spin_unlock+0x28/0x50 [ 159.913603][ C0] ? mntput_no_expire+0x2da/0x850 [ 159.918656][ C0] ? __pfx_unregister_netdevice_notifier_net+0x10/0x10 [ 159.925540][ C0] ? __pfx_mntput_no_expire+0x10/0x10 [ 159.930904][ C0] ? _raw_spin_unlock+0x28/0x50 [ 159.935782][ C0] ? simple_release_fs+0x9c/0xd0 [ 159.940743][ C0] nsim_dev_hwstats_exit+0x81/0x290 [ 159.945980][ C0] ? kfree+0x149/0x360 [ 159.950061][ C0] nsim_dev_reload_destroy+0x2ad/0x490 [ 159.955559][ C0] ? __pfx_nsim_bus_remove+0x10/0x10 [ 159.960939][ C0] nsim_drv_remove+0x58/0x160 [ 159.965648][ C0] device_release_driver_internal+0x4a9/0x7c0 [ 159.971739][ C0] bus_remove_device+0x34f/0x420 [ 159.976716][ C0] device_del+0x57a/0x9b0 [ 159.981061][ C0] ? __pfx_device_del+0x10/0x10 [ 159.985959][ C0] device_unregister+0x20/0xc0 [ 159.990737][ C0] del_device_store+0x363/0x480 [ 159.995634][ C0] ? __pfx_del_device_store+0x10/0x10 [ 160.001016][ C0] ? sysfs_kf_write+0x182/0x2a0 [ 160.005896][ C0] ? bus_attr_store+0x4f/0xa0 [ 160.010601][ C0] ? __pfx_sysfs_kf_write+0x10/0x10 [ 160.015847][ C0] kernfs_fop_write_iter+0x3a1/0x500 [ 160.021144][ C0] vfs_write+0xa72/0xc90 [ 160.025422][ C0] ? __pfx_kernfs_fop_write_iter+0x10/0x10 [ 160.031239][ C0] ? __pfx_vfs_write+0x10/0x10 [ 160.036049][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 160.041270][ C0] ? blkcg_maybe_throttle_current+0x1ab/0xb80 [ 160.047382][ C0] ksys_write+0x1a0/0x2c0 [ 160.051732][ C0] ? __pfx_ksys_write+0x10/0x10 [ 160.056631][ C0] ? do_syscall_64+0x100/0x230 [ 160.061415][ C0] ? do_syscall_64+0xb6/0x230 [ 160.066126][ C0] do_syscall_64+0xf3/0x230 [ 160.070644][ C0] ? clear_bhb_loop+0x35/0x90 [ 160.075364][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 160.081274][ C0] RIP: 0033:0x7f49cd7746df [ 160.085721][ C0] RSP: 002b:00007ffce9b11af0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 160.094174][ C0] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f49cd7746df [ 160.102137][ C0] RDX: 0000000000000001 RSI: 00007ffce9b11b40 RDI: 0000000000000005 [ 160.110136][ C0] RBP: 00007f49cd7e45b2 R08: 0000000000000000 R09: 00007ffce9b11947 [ 160.118140][ C0] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 [ 160.126136][ C0] R13: 00007ffce9b11b40 R14: 00007f49ce434620 R15: 0000000000000003 [ 160.134146][ C0] [ 160.137152][ C0] [ 160.137152][ C0] Showing all locks held in the system: [ 160.144884][ C0] 4 locks held by kworker/u8:0/11: [ 160.150001][ C0] #0: ffff88802a969948 ((wq_completion)bat_events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 160.161353][ C0] #1: ffffc90000107d00 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 160.174545][ C0] #2: ffffc90000007c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 160.184673][ C0] #3: ffffffff8e337a60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 160.194588][ C0] 5 locks held by kworker/u8:3/53: [ 160.199697][ C0] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 160.210608][ C0] #1: ffffc90000bd7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 160.221208][ C0] #2: ffffffff8f5fddd0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 160.230664][ C0] #3: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 160.240731][ C0] #4: ffffffff8e33ce38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 160.251670][ C0] 3 locks held by kworker/u8:8/2851: [ 160.256974][ C0] #0: ffff888029d05148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 160.268598][ C0] #1: ffffc90009a97d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 160.281452][ C0] #2: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 160.290906][ C0] 1 lock held by klogd/4542: [ 160.295526][ C0] #0: ffff8880b953ea18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 [ 160.305480][ C0] 2 locks held by dhcpcd/4767: [ 160.310255][ C0] #0: ffff88801bb47678 (nlk_cb_mutex-ROUTE){+.+.}-{3:3}, at: __netlink_dump_start+0x119/0x790 [ 160.320694][ C0] #1: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_dumpit+0x9e/0x210 [ 160.329569][ C0] 2 locks held by getty/4850: [ 160.334279][ C0] #0: ffff88802a85f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 160.344194][ C0] #1: ffffc900031232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 160.354371][ C0] 7 locks held by syz-executor/5213: [ 160.359655][ C0] #0: ffff88802a02a420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 [ 160.368577][ C0] #1: ffff88807f7a0888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 [ 160.378411][ C0] #2: ffff88802286e2d8 (kn->active#53){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 [ 160.388478][ C0] #3: ffffffff8ef0c528 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 [ 160.398802][ C0] #4: ffff8880515300e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xce/0x7c0 [ 160.409375][ C0] #5: ffff888051531250 (&devlink->lock_key){+.+.}-{3:3}, at: nsim_drv_remove+0x50/0x160 [ 160.419278][ C0] #6: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: unregister_netdevice_notifier_net+0x89/0x3a0 [ 160.430022][ C0] 4 locks held by syz-executor/5218: [ 160.435351][ C0] #0: ffff88802a02a420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 [ 160.444332][ C0] #1: ffff88807beca488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 [ 160.454579][ C0] #2: ffff88802286e2d8 (kn->active#53){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 [ 160.464621][ C0] #3: ffffffff8ef0c528 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 [ 160.474945][ C0] 4 locks held by syz-executor/5217: [ 160.480215][ C0] #0: ffff88802a02a420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 [ 160.489166][ C0] #1: ffff88804e279c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 [ 160.498978][ C0] #2: ffff88802286e2d8 (kn->active#53){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 [ 160.509040][ C0] #3: ffffffff8ef0c528 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 [ 160.519409][ C0] 3 locks held by kworker/1:4/5269: [ 160.524655][ C0] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 160.535677][ C0] #1: ffffc9000362fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 160.546693][ C0] #2: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 160.555724][ C0] [ 160.558033][ C0] ============================================= [ 160.558033][ C0] 2024/07/22 07:06:31 executed programs: 31 [ 161.633932][ C0] DEBUG: waiting rtnl_mutex for 1635 jiffies. [ 161.640055][ C0] task:kworker/1:4 state:D stack:25104 pid:5269 tgid:5269 ppid:2 flags:0x00004000 [ 161.650318][ C0] Workqueue: events linkwatch_event [ 161.655661][ C0] Call Trace: [ 161.658955][ C0] [ 161.661899][ C0] __schedule+0x1800/0x4a60 [ 161.666499][ C0] ? __pfx___schedule+0x10/0x10 [ 161.671380][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 161.677435][ C0] ? __pfx_lock_release+0x10/0x10 [ 161.682487][ C0] ? kick_pool+0x1bd/0x620 [ 161.686967][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 161.692964][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 161.698194][ C0] ? schedule+0x90/0x320 [ 161.702450][ C0] schedule+0x14b/0x320 [ 161.706660][ C0] schedule_preempt_disabled+0x13/0x30 [ 161.712205][ C0] __mutex_lock+0x6a4/0xd70 [ 161.716746][ C0] ? __mutex_lock+0x527/0xd70 [ 161.721439][ C0] ? linkwatch_event+0xe/0x60 [ 161.726166][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 161.731246][ C0] ? get_rtnl_holder+0x144/0x190 [ 161.736214][ C0] ? process_scheduled_works+0x945/0x1830 [ 161.741946][ C0] linkwatch_event+0xe/0x60 [ 161.746499][ C0] process_scheduled_works+0xa2c/0x1830 [ 161.752074][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 161.758094][ C0] ? assign_work+0x364/0x3d0 [ 161.762700][ C0] worker_thread+0x86d/0xd40 [ 161.767352][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 161.773266][ C0] ? __kthread_parkme+0x169/0x1d0 [ 161.778325][ C0] ? __pfx_worker_thread+0x10/0x10 [ 161.783452][ C0] kthread+0x2f0/0x390 [ 161.787572][ C0] ? __pfx_worker_thread+0x10/0x10 [ 161.792709][ C0] ? __pfx_kthread+0x10/0x10 [ 161.797360][ C0] ret_from_fork+0x4b/0x80 [ 161.801799][ C0] ? __pfx_kthread+0x10/0x10 [ 161.806456][ C0] ret_from_fork_asm+0x1a/0x30 [ 161.811255][ C0] [ 161.814327][ C0] DEBUG: waiting rtnl_mutex for 1130 jiffies. [ 161.820388][ C0] task:dhcpcd state:D stack:20672 pid:4767 tgid:4767 ppid:4766 flags:0x00000002 [ 161.830586][ C0] Call Trace: [ 161.833922][ C0] [ 161.836860][ C0] __schedule+0x1800/0x4a60 [ 161.841364][ C0] ? __pfx___schedule+0x10/0x10 [ 161.846280][ C0] ? __pfx_lock_release+0x10/0x10 [ 161.851324][ C0] ? __mutex_trylock_common+0x92/0x2e0 [ 161.856907][ C0] ? schedule+0x90/0x320 [ 161.861167][ C0] schedule+0x14b/0x320 [ 161.865392][ C0] schedule_preempt_disabled+0x13/0x30 [ 161.870869][ C0] __mutex_lock+0x6a4/0xd70 [ 161.875428][ C0] ? __mutex_lock+0x527/0xd70 [ 161.880151][ C0] ? rtnl_dumpit+0x9e/0x210 [ 161.884714][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 161.889752][ C0] ? __alloc_skb+0x28f/0x440 [ 161.894391][ C0] ? get_rtnl_holder+0x144/0x190 [ 161.899339][ C0] ? __pfx_rtnl_dump_ifinfo+0x10/0x10 [ 161.904762][ C0] rtnl_dumpit+0x9e/0x210 [ 161.909128][ C0] netlink_dump+0x647/0xd80 [ 161.913657][ C0] ? __pfx_netlink_dump+0x10/0x10 [ 161.918742][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 161.923830][ C0] __netlink_dump_start+0x5a2/0x790 [ 161.929050][ C0] ? __pfx_rtnl_dump_ifinfo+0x10/0x10 [ 161.934461][ C0] rtnetlink_rcv_msg+0xb42/0xd00 [ 161.939426][ C0] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 161.944933][ C0] ? __pfx_rtnl_dumpit+0x10/0x10 [ 161.949885][ C0] ? __pfx_rtnl_dump_ifinfo+0x10/0x10 [ 161.955335][ C0] netlink_rcv_skb+0x1e3/0x430 [ 161.960107][ C0] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 161.965608][ C0] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 161.970912][ C0] ? netlink_deliver_tap+0x2e/0x1b0 [ 161.976142][ C0] netlink_unicast+0x7f6/0x990 [ 161.980929][ C0] ? __pfx_netlink_unicast+0x10/0x10 [ 161.986274][ C0] ? __virt_addr_valid+0x183/0x530 [ 161.991398][ C0] ? __check_object_size+0x49c/0x900 [ 161.996718][ C0] ? bpf_lsm_netlink_send+0x9/0x10 [ 162.001845][ C0] netlink_sendmsg+0x8e4/0xcb0 [ 162.006665][ C0] ? __pfx_netlink_sendmsg+0x10/0x10 [ 162.011963][ C0] ? aa_sock_msg_perm+0x91/0x160 [ 162.016940][ C0] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 162.022239][ C0] ? security_socket_sendmsg+0x87/0xb0 [ 162.027756][ C0] ? __pfx_netlink_sendmsg+0x10/0x10 [ 162.033054][ C0] __sock_sendmsg+0x221/0x270 [ 162.037793][ C0] __sys_sendto+0x3a4/0x4f0 [ 162.042406][ C0] ? __pfx___sys_sendto+0x10/0x10 [ 162.047516][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 162.053516][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 162.059878][ C0] __x64_sys_sendto+0xde/0x100 [ 162.064718][ C0] do_syscall_64+0xf3/0x230 [ 162.069239][ C0] ? clear_bhb_loop+0x35/0x90 [ 162.073955][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 162.079893][ C0] RIP: 0033:0x7f586e901ad7 [ 162.084351][ C0] RSP: 002b:00007ffc3a45a318 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 162.092775][ C0] RAX: ffffffffffffffda RBX: 00007ffc3a45b440 RCX: 00007f586e901ad7 [ 162.100778][ C0] RDX: 0000000000000014 RSI: 00007ffc3a45b360 RDI: 0000000000000018 [ 162.108787][ C0] RBP: 00007ffc3a45b3d0 R08: 00007ffc3a45b344 R09: 000000000000000c [ 162.116871][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000012 [ 162.124900][ C0] R13: 00007ffc3a45b344 R14: 00007ffc3a45b360 R15: 0000000000000105 [ 162.132890][ C0] [ 162.135934][ C0] DEBUG: holding rtnl_mutex for 1896 jiffies. [ 162.142000][ C0] task:kworker/u8:3 state:D stack:21808 pid:53 tgid:53 ppid:2 flags:0x00004000 [ 162.152196][ C0] Workqueue: netns cleanup_net [ 162.157022][ C0] Call Trace: [ 162.160314][ C0] [ 162.163258][ C0] __schedule+0x1800/0x4a60 [ 162.167882][ C0] ? __pfx___schedule+0x10/0x10 [ 162.172782][ C0] ? __pfx_lock_release+0x10/0x10 [ 162.177860][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 162.183822][ C0] ? kthread_data+0x52/0xd0 [ 162.188351][ C0] ? wq_worker_sleeping+0x66/0x240 [ 162.193474][ C0] ? schedule+0x90/0x320 [ 162.197746][ C0] schedule+0x14b/0x320 [ 162.201920][ C0] synchronize_rcu_expedited+0x684/0x830 [ 162.207602][ C0] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 162.213821][ C0] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 162.219112][ C0] ? __pfx___might_resched+0x10/0x10 [ 162.224441][ C0] ? __pfx_autoremove_wake_function+0x10/0x10 [ 162.230525][ C0] ? netdev_upper_dev_unlink+0x92/0xd0 [ 162.236011][ C0] ? __pfx_netdev_upper_dev_unlink+0x10/0x10 [ 162.242010][ C0] netdev_rx_handler_unregister+0xa0/0x110 [ 162.247865][ C0] team_port_del+0x435/0xcc0 [ 162.252467][ C0] ? __mutex_lock+0x2ef/0xd70 [ 162.257176][ C0] ? __pfx_team_port_del+0x10/0x10 [ 162.262297][ C0] ? bond_netdev_event+0xdd/0xf20 [ 162.267366][ C0] ? team_del_slave+0x32/0x1d0 [ 162.272143][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 162.277225][ C0] ? __asan_memset+0x23/0x50 [ 162.281843][ C0] team_del_slave+0x3d/0x1d0 [ 162.286583][ C0] team_device_event+0x200/0x5b0 [ 162.291534][ C0] ? notifier_call_chain+0x162/0x3e0 [ 162.296880][ C0] notifier_call_chain+0x19f/0x3e0 [ 162.302025][ C0] unregister_netdevice_many_notify+0xd81/0x1c40 [ 162.308466][ C0] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 162.315277][ C0] ? unregister_netdevice_queue+0x26b/0x370 [ 162.321167][ C0] ? batadv_softif_destroy_netlink+0x1e3/0x270 [ 162.327377][ C0] default_device_exit_batch+0xa0f/0xa90 [ 162.333021][ C0] ? __pfx___might_resched+0x10/0x10 [ 162.338336][ C0] ? __pfx_default_device_exit_batch+0x10/0x10 [ 162.344556][ C0] ? cfg802154_pernet_exit+0xc3/0xe0 [ 162.349853][ C0] ? __pfx_default_device_exit_batch+0x10/0x10 [ 162.356065][ C0] cleanup_net+0x89d/0xcc0 [ 162.360540][ C0] ? __pfx_cleanup_net+0x10/0x10 [ 162.365565][ C0] ? process_scheduled_works+0x945/0x1830 [ 162.371332][ C0] process_scheduled_works+0xa2c/0x1830 [ 162.376943][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 162.382944][ C0] ? assign_work+0x364/0x3d0 [ 162.387596][ C0] worker_thread+0x86d/0xd40 [ 162.392205][ C0] ? __kthread_parkme+0x169/0x1d0 [ 162.397265][ C0] ? __pfx_worker_thread+0x10/0x10 [ 162.402392][ C0] kthread+0x2f0/0x390 [ 162.406515][ C0] ? __pfx_worker_thread+0x10/0x10 [ 162.411648][ C0] ? __pfx_kthread+0x10/0x10 [ 162.416281][ C0] ret_from_fork+0x4b/0x80 [ 162.420719][ C0] ? __pfx_kthread+0x10/0x10 [ 162.425342][ C0] ret_from_fork_asm+0x1a/0x30 [ 162.430108][ C0] [ 162.433109][ C0] DEBUG: waiting rtnl_mutex for 1925 jiffies. [ 162.439213][ C0] task:kworker/u8:8 state:D stack:21352 pid:2851 tgid:2851 ppid:2 flags:0x00004000 [ 162.449409][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 162.455449][ C0] Call Trace: [ 162.458740][ C0] [ 162.461674][ C0] __schedule+0x1800/0x4a60 [ 162.466248][ C0] ? __pfx___schedule+0x10/0x10 [ 162.471113][ C0] ? __pfx_lock_release+0x10/0x10 [ 162.476192][ C0] ? wq_worker_sleeping+0x24/0x240 [ 162.481315][ C0] ? kthread_data+0x52/0xd0 [ 162.485852][ C0] ? schedule+0x90/0x320 [ 162.490121][ C0] ? wq_worker_sleeping+0x66/0x240 [ 162.495296][ C0] ? schedule+0x90/0x320 [ 162.499567][ C0] schedule+0x14b/0x320 [ 162.503738][ C0] schedule_preempt_disabled+0x13/0x30 [ 162.509276][ C0] __mutex_lock+0x6a4/0xd70 [ 162.513821][ C0] ? mark_lock+0x9a/0x360 [ 162.518221][ C0] ? __mutex_lock+0x527/0xd70 [ 162.522931][ C0] ? addrconf_dad_work+0xd0/0x16f0 [ 162.528113][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 162.533184][ C0] ? get_rtnl_holder+0x144/0x190 [ 162.538200][ C0] addrconf_dad_work+0xd0/0x16f0 [ 162.543179][ C0] ? preempt_schedule+0xe1/0xf0 [ 162.548100][ C0] ? __pfx_preempt_schedule+0x10/0x10 [ 162.553497][ C0] ? __pfx_addrconf_dad_work+0x10/0x10 [ 162.559011][ C0] ? preempt_schedule_thunk+0x1a/0x30 [ 162.564448][ C0] ? process_scheduled_works+0x945/0x1830 [ 162.570185][ C0] process_scheduled_works+0xa2c/0x1830 [ 162.575788][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 162.581787][ C0] ? assign_work+0x364/0x3d0 [ 162.586432][ C0] worker_thread+0x86d/0xd40 [ 162.591047][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 162.596971][ C0] ? __kthread_parkme+0x169/0x1d0 [ 162.602015][ C0] ? __pfx_worker_thread+0x10/0x10 [ 162.607173][ C0] kthread+0x2f0/0x390 [ 162.611255][ C0] ? __pfx_worker_thread+0x10/0x10 [ 162.616397][ C0] ? __pfx_kthread+0x10/0x10 [ 162.620999][ C0] ret_from_fork+0x4b/0x80 [ 162.625462][ C0] ? __pfx_kthread+0x10/0x10 [ 162.630060][ C0] ret_from_fork_asm+0x1a/0x30 [ 162.634892][ C0] [ 162.638002][ C0] DEBUG: waiting rtnl_mutex for 1936 jiffies. [ 162.644107][ C0] task:syz-executor state:D stack:21728 pid:5213 tgid:5213 ppid:5209 flags:0x00004002 [ 162.654322][ C0] Call Trace: [ 162.657617][ C0] [ 162.660562][ C0] __schedule+0x1800/0x4a60 [ 162.665163][ C0] ? __pfx___schedule+0x10/0x10 [ 162.670041][ C0] ? __pfx_lock_release+0x10/0x10 [ 162.675136][ C0] ? __mutex_trylock_common+0x92/0x2e0 [ 162.680621][ C0] ? schedule+0x90/0x320 [ 162.684916][ C0] schedule+0x14b/0x320 [ 162.689104][ C0] schedule_preempt_disabled+0x13/0x30 [ 162.694629][ C0] __mutex_lock+0x6a4/0xd70 [ 162.699149][ C0] ? __mutex_lock+0x527/0xd70 [ 162.703865][ C0] ? unregister_netdevice_notifier_net+0x89/0x3a0 [ 162.710284][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 162.715362][ C0] ? get_rtnl_holder+0x144/0x190 [ 162.720312][ C0] unregister_netdevice_notifier_net+0x89/0x3a0 [ 162.726602][ C0] ? _raw_spin_unlock+0x28/0x50 [ 162.731466][ C0] ? mntput_no_expire+0x2da/0x850 [ 162.736519][ C0] ? __pfx_unregister_netdevice_notifier_net+0x10/0x10 [ 162.743381][ C0] ? __pfx_mntput_no_expire+0x10/0x10 [ 162.748786][ C0] ? _raw_spin_unlock+0x28/0x50 [ 162.753647][ C0] ? simple_release_fs+0x9c/0xd0 [ 162.758619][ C0] nsim_dev_hwstats_exit+0x81/0x290 [ 162.763867][ C0] ? kfree+0x149/0x360 [ 162.767961][ C0] nsim_dev_reload_destroy+0x2ad/0x490 [ 162.773439][ C0] ? __pfx_nsim_bus_remove+0x10/0x10 [ 162.778777][ C0] nsim_drv_remove+0x58/0x160 [ 162.783483][ C0] device_release_driver_internal+0x4a9/0x7c0 [ 162.789696][ C0] bus_remove_device+0x34f/0x420 [ 162.794686][ C0] device_del+0x57a/0x9b0 [ 162.799049][ C0] ? __pfx_device_del+0x10/0x10 [ 162.803951][ C0] device_unregister+0x20/0xc0 [ 162.808730][ C0] del_device_store+0x363/0x480 [ 162.813572][ C0] ? __pfx_del_device_store+0x10/0x10 [ 162.818975][ C0] ? sysfs_kf_write+0x182/0x2a0 [ 162.823878][ C0] ? bus_attr_store+0x4f/0xa0 [ 162.828566][ C0] ? __pfx_sysfs_kf_write+0x10/0x10 [ 162.833797][ C0] kernfs_fop_write_iter+0x3a1/0x500 [ 162.839109][ C0] vfs_write+0xa72/0xc90 [ 162.843372][ C0] ? __pfx_kernfs_fop_write_iter+0x10/0x10 [ 162.849219][ C0] ? __pfx_vfs_write+0x10/0x10 [ 162.854055][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 162.859304][ C0] ? blkcg_maybe_throttle_current+0x1ab/0xb80 [ 162.865494][ C0] ksys_write+0x1a0/0x2c0 [ 162.869844][ C0] ? __pfx_ksys_write+0x10/0x10 [ 162.874751][ C0] ? do_syscall_64+0x100/0x230 [ 162.879544][ C0] ? do_syscall_64+0xb6/0x230 [ 162.884293][ C0] do_syscall_64+0xf3/0x230 [ 162.888801][ C0] ? clear_bhb_loop+0x35/0x90 [ 162.893485][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 162.899435][ C0] RIP: 0033:0x7f49cd7746df [ 162.903899][ C0] RSP: 002b:00007ffce9b11af0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 162.912326][ C0] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f49cd7746df [ 162.920341][ C0] RDX: 0000000000000001 RSI: 00007ffce9b11b40 RDI: 0000000000000005 [ 162.928364][ C0] RBP: 00007f49cd7e45b2 R08: 0000000000000000 R09: 00007ffce9b11947 [ 162.936394][ C0] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 [ 162.944400][ C0] R13: 00007ffce9b11b40 R14: 00007f49ce434620 R15: 0000000000000003 [ 162.952387][ C0] [ 162.955439][ C0] [ 162.955439][ C0] Showing all locks held in the system: [ 162.963157][ C0] 6 locks held by kworker/u8:3/53: [ 162.968313][ C0] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 162.979257][ C0] #1: ffffc90000bd7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 162.989841][ C0] #2: ffffffff8f5fddd0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 162.999303][ C0] #3: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 163.009357][ C0] #4: ffff888022d24d40 (team->team_lock_key){+.+.}-{3:3}, at: team_del_slave+0x32/0x1d0 [ 163.019252][ C0] #5: ffffffff8e33ce38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 163.030178][ C0] 3 locks held by kworker/u8:8/2851: [ 163.035501][ C0] #0: ffff888029d05148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 163.047158][ C0] #1: ffffc90009a97d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 163.060031][ C0] #2: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 163.069535][ C0] 2 locks held by dhcpcd/4767: [ 163.074343][ C0] #0: ffff88801bb47678 (nlk_cb_mutex-ROUTE){+.+.}-{3:3}, at: __netlink_dump_start+0x119/0x790 [ 163.084768][ C0] #1: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_dumpit+0x9e/0x210 [ 163.093602][ C0] 2 locks held by getty/4850: [ 163.098341][ C0] #0: ffff88802a85f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 163.108145][ C0] #1: ffffc900031232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 163.118291][ C0] 1 lock held by syz-executor/5207: [ 163.123493][ C0] #0: ffff8880b953ea18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 [ 163.133445][ C0] 7 locks held by syz-executor/5213: [ 163.138768][ C0] #0: ffff88802a02a420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 [ 163.147737][ C0] #1: ffff88807f7a0888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 [ 163.157561][ C0] #2: ffff88802286e2d8 (kn->active#53){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 [ 163.167656][ C0] #3: ffffffff8ef0c528 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 [ 163.178016][ C0] #4: ffff8880515300e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xce/0x7c0 [ 163.188637][ C0] #5: ffff888051531250 (&devlink->lock_key){+.+.}-{3:3}, at: nsim_drv_remove+0x50/0x160 [ 163.198554][ C0] #6: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: unregister_netdevice_notifier_net+0x89/0x3a0 [ 163.209365][ C0] 4 locks held by syz-executor/5218: [ 163.214691][ C0] #0: ffff88802a02a420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 [ 163.223635][ C0] #1: ffff88807beca488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 [ 163.233428][ C0] #2: ffff88802286e2d8 (kn->active#53){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 [ 163.243498][ C0] #3: ffffffff8ef0c528 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 [ 163.253806][ C0] 4 locks held by syz-executor/5217: [ 163.259100][ C0] #0: ffff88802a02a420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 [ 163.268040][ C0] #1: ffff88804e279c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 [ 163.277868][ C0] #2: ffff88802286e2d8 (kn->active#53){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 [ 163.287966][ C0] #3: ffffffff8ef0c528 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 [ 163.298326][ C0] 3 locks held by kworker/1:4/5269: [ 163.303545][ C0] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 163.314603][ C0] #1: ffffc9000362fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 163.325866][ C0] #2: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 163.334943][ C0] 3 locks held by syz.1.39/5371: [ 163.339888][ C0] #0: ffff88805057f580 (&u->iolock){+.+.}-{3:3}, at: __unix_dgram_recvmsg+0x246/0x12f0 [ 163.349729][ C0] #1: ffffc90000007c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 163.359877][ C0] #2: ffffffff8e337a60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 163.369752][ C0] 1 lock held by syz.0.40/5369: [ 163.374648][ C0] [ 163.376984][ C0] ============================================= [ 163.376984][ C0] [ 164.262139][ T53] team0 (unregistering): Port device team_slave_1 removed [ 164.434537][ C0] DEBUG: waiting rtnl_mutex for 1915 jiffies. [ 164.440660][ C0] task:kworker/1:4 state:D stack:25104 pid:5269 tgid:5269 ppid:2 flags:0x00004000 [ 164.450910][ C0] Workqueue: events linkwatch_event [ 164.456273][ C0] Call Trace: [ 164.459569][ C0] [ 164.462513][ C0] __schedule+0x1800/0x4a60 [ 164.467100][ C0] ? __pfx___schedule+0x10/0x10 [ 164.471986][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 164.478019][ C0] ? __pfx_lock_release+0x10/0x10 [ 164.483072][ C0] ? kick_pool+0x1bd/0x620 [ 164.487551][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 164.492774][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 164.498021][ C0] ? schedule+0x90/0x320 [ 164.502290][ C0] schedule+0x14b/0x320 [ 164.506524][ C0] schedule_preempt_disabled+0x13/0x30 [ 164.512018][ C0] __mutex_lock+0x6a4/0xd70 [ 164.516588][ C0] ? __mutex_lock+0x527/0xd70 [ 164.521294][ C0] ? linkwatch_event+0xe/0x60 [ 164.526032][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 164.531098][ C0] ? get_rtnl_holder+0x144/0x190 [ 164.536130][ C0] ? process_scheduled_works+0x945/0x1830 [ 164.541891][ C0] linkwatch_event+0xe/0x60 [ 164.546456][ C0] process_scheduled_works+0xa2c/0x1830 [ 164.552059][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 164.558127][ C0] ? assign_work+0x364/0x3d0 [ 164.562768][ C0] worker_thread+0x86d/0xd40 [ 164.567439][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 164.573365][ C0] ? __kthread_parkme+0x169/0x1d0 [ 164.578455][ C0] ? __pfx_worker_thread+0x10/0x10 [ 164.583598][ C0] kthread+0x2f0/0x390 [ 164.587746][ C0] ? __pfx_worker_thread+0x10/0x10 [ 164.592885][ C0] ? __pfx_kthread+0x10/0x10 [ 164.597538][ C0] ret_from_fork+0x4b/0x80 [ 164.601976][ C0] ? __pfx_kthread+0x10/0x10 [ 164.606631][ C0] ret_from_fork_asm+0x1a/0x30 [ 164.611438][ C0] [ 164.614529][ C0] DEBUG: waiting rtnl_mutex for 1410 jiffies. [ 164.620598][ C0] task:dhcpcd state:D stack:20672 pid:4767 tgid:4767 ppid:4766 flags:0x00000002 [ 164.630806][ C0] Call Trace: [ 164.634124][ C0] [ 164.637074][ C0] __schedule+0x1800/0x4a60 [ 164.641621][ C0] ? __pfx___schedule+0x10/0x10 [ 164.646527][ C0] ? __pfx_lock_release+0x10/0x10 [ 164.651576][ C0] ? __mutex_trylock_common+0x92/0x2e0 [ 164.657088][ C0] ? schedule+0x90/0x320 [ 164.661353][ C0] schedule+0x14b/0x320 [ 164.665560][ C0] schedule_preempt_disabled+0x13/0x30 [ 164.671041][ C0] __mutex_lock+0x6a4/0xd70 [ 164.675599][ C0] ? __mutex_lock+0x527/0xd70 [ 164.680296][ C0] ? rtnl_dumpit+0x9e/0x210 [ 164.684851][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 164.689906][ C0] ? __alloc_skb+0x28f/0x440 [ 164.694542][ C0] ? get_rtnl_holder+0x144/0x190 [ 164.699492][ C0] ? __pfx_rtnl_dump_ifinfo+0x10/0x10 [ 164.704906][ C0] rtnl_dumpit+0x9e/0x210 [ 164.709264][ C0] netlink_dump+0x647/0xd80 [ 164.713813][ C0] ? __pfx_netlink_dump+0x10/0x10 [ 164.718876][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 164.723970][ C0] __netlink_dump_start+0x5a2/0x790 [ 164.729211][ C0] ? __pfx_rtnl_dump_ifinfo+0x10/0x10 [ 164.734632][ C0] rtnetlink_rcv_msg+0xb42/0xd00 [ 164.739613][ C0] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 164.745128][ C0] ? __pfx_rtnl_dumpit+0x10/0x10 [ 164.750088][ C0] ? __pfx_rtnl_dump_ifinfo+0x10/0x10 [ 164.755519][ C0] netlink_rcv_skb+0x1e3/0x430 [ 164.760305][ C0] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 164.765811][ C0] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 164.771135][ C0] ? netlink_deliver_tap+0x2e/0x1b0 [ 164.776386][ C0] netlink_unicast+0x7f6/0x990 [ 164.781184][ C0] ? __pfx_netlink_unicast+0x10/0x10 [ 164.786514][ C0] ? __virt_addr_valid+0x183/0x530 [ 164.791648][ C0] ? __check_object_size+0x49c/0x900 [ 164.796975][ C0] ? bpf_lsm_netlink_send+0x9/0x10 [ 164.802110][ C0] netlink_sendmsg+0x8e4/0xcb0 [ 164.806925][ C0] ? __pfx_netlink_sendmsg+0x10/0x10 [ 164.812225][ C0] ? aa_sock_msg_perm+0x91/0x160 [ 164.817208][ C0] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 164.822503][ C0] ? security_socket_sendmsg+0x87/0xb0 [ 164.828009][ C0] ? __pfx_netlink_sendmsg+0x10/0x10 [ 164.833307][ C0] __sock_sendmsg+0x221/0x270 [ 164.838036][ C0] __sys_sendto+0x3a4/0x4f0 [ 164.842572][ C0] ? __pfx___sys_sendto+0x10/0x10 [ 164.847669][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 164.853671][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 164.860058][ C0] __x64_sys_sendto+0xde/0x100 [ 164.864866][ C0] do_syscall_64+0xf3/0x230 [ 164.869386][ C0] ? clear_bhb_loop+0x35/0x90 [ 164.874108][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 164.880020][ C0] RIP: 0033:0x7f586e901ad7 [ 164.884476][ C0] RSP: 002b:00007ffc3a45a318 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 164.892905][ C0] RAX: ffffffffffffffda RBX: 00007ffc3a45b440 RCX: 00007f586e901ad7 [ 164.900920][ C0] RDX: 0000000000000014 RSI: 00007ffc3a45b360 RDI: 0000000000000018 [ 164.908929][ C0] RBP: 00007ffc3a45b3d0 R08: 00007ffc3a45b344 R09: 000000000000000c [ 164.916937][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000012 [ 164.924945][ C0] R13: 00007ffc3a45b344 R14: 00007ffc3a45b360 R15: 0000000000000105 [ 164.932946][ C0] [ 164.935998][ C0] DEBUG: holding rtnl_mutex for 2176 jiffies. [ 164.942087][ C0] task:kworker/u8:3 state:D stack:21808 pid:53 tgid:53 ppid:2 flags:0x00004000 [ 164.952307][ C0] Workqueue: netns cleanup_net [ 164.957121][ C0] Call Trace: [ 164.960411][ C0] [ 164.963353][ C0] __schedule+0x1800/0x4a60 [ 164.968015][ C0] ? __pfx___schedule+0x10/0x10 [ 164.972932][ C0] ? __pfx_lock_release+0x10/0x10 [ 164.978004][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 164.983949][ C0] ? kthread_data+0x52/0xd0 [ 164.988475][ C0] ? wq_worker_sleeping+0x66/0x240 [ 164.993611][ C0] ? schedule+0x90/0x320 [ 164.997892][ C0] schedule+0x14b/0x320 [ 165.002069][ C0] synchronize_rcu_expedited+0x684/0x830 [ 165.007744][ C0] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 165.013951][ C0] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 165.019248][ C0] ? __pfx___might_resched+0x10/0x10 [ 165.024571][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 165.030568][ C0] ? __pfx_autoremove_wake_function+0x10/0x10 [ 165.036682][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 165.043041][ C0] synchronize_rcu+0x11b/0x360 [ 165.047851][ C0] ? __pfx_synchronize_rcu+0x10/0x10 [ 165.053158][ C0] ? __phys_addr+0x105/0x170 [ 165.057796][ C0] lockdep_unregister_key+0x4b7/0x540 [ 165.063191][ C0] ? __pfx_lockdep_unregister_key+0x10/0x10 [ 165.069131][ C0] ? rcu_is_watching+0x15/0xb0 [ 165.073933][ C0] ? qdisc_reset+0x3bf/0x5b0 [ 165.078538][ C0] __qdisc_destroy+0x165/0x410 [ 165.083327][ C0] dev_shutdown+0x9b/0x450 [ 165.087790][ C0] unregister_netdevice_many_notify+0x97b/0x1c40 [ 165.094179][ C0] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 165.100976][ C0] ? unregister_netdevice_queue+0x26b/0x370 [ 165.106920][ C0] ? batadv_softif_destroy_netlink+0x1e3/0x270 [ 165.113098][ C0] default_device_exit_batch+0xa0f/0xa90 [ 165.118774][ C0] ? __pfx___might_resched+0x10/0x10 [ 165.124110][ C0] ? __pfx_default_device_exit_batch+0x10/0x10 [ 165.130282][ C0] ? cfg802154_pernet_exit+0xc3/0xe0 [ 165.135605][ C0] ? __pfx_default_device_exit_batch+0x10/0x10 [ 165.141775][ C0] cleanup_net+0x89d/0xcc0 [ 165.146237][ C0] ? __pfx_cleanup_net+0x10/0x10 [ 165.151202][ C0] ? process_scheduled_works+0x945/0x1830 [ 165.156967][ C0] process_scheduled_works+0xa2c/0x1830 [ 165.162561][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 165.168594][ C0] ? assign_work+0x364/0x3d0 [ 165.173210][ C0] worker_thread+0x86d/0xd40 [ 165.177861][ C0] ? __kthread_parkme+0x169/0x1d0 [ 165.182909][ C0] ? __pfx_worker_thread+0x10/0x10 [ 165.188066][ C0] kthread+0x2f0/0x390 [ 165.192147][ C0] ? __pfx_worker_thread+0x10/0x10 [ 165.197300][ C0] ? __pfx_kthread+0x10/0x10 [ 165.201901][ C0] ret_from_fork+0x4b/0x80 [ 165.206361][ C0] ? __pfx_kthread+0x10/0x10 [ 165.210969][ C0] ret_from_fork_asm+0x1a/0x30 [ 165.215795][ C0] [ 165.218823][ C0] DEBUG: waiting rtnl_mutex for 2204 jiffies. [ 165.224915][ C0] task:kworker/u8:8 state:D stack:21352 pid:2851 tgid:2851 ppid:2 flags:0x00004000 [ 165.235122][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 165.241128][ C0] Call Trace: [ 165.244437][ C0] [ 165.247381][ C0] __schedule+0x1800/0x4a60 [ 165.251927][ C0] ? __pfx___schedule+0x10/0x10 [ 165.256832][ C0] ? __pfx_lock_release+0x10/0x10 [ 165.261880][ C0] ? wq_worker_sleeping+0x24/0x240 [ 165.267042][ C0] ? kthread_data+0x52/0xd0 [ 165.271564][ C0] ? schedule+0x90/0x320 [ 165.275845][ C0] ? wq_worker_sleeping+0x66/0x240 [ 165.280979][ C0] ? schedule+0x90/0x320 [ 165.285265][ C0] schedule+0x14b/0x320 [ 165.289526][ C0] schedule_preempt_disabled+0x13/0x30 [ 165.295049][ C0] __mutex_lock+0x6a4/0xd70 [ 165.299572][ C0] ? mark_lock+0x9a/0x360 [ 165.303954][ C0] ? __mutex_lock+0x527/0xd70 [ 165.308810][ C0] ? addrconf_dad_work+0xd0/0x16f0 [ 165.313993][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 165.319057][ C0] ? get_rtnl_holder+0x144/0x190 [ 165.324062][ C0] addrconf_dad_work+0xd0/0x16f0 [ 165.329039][ C0] ? preempt_schedule+0xe1/0xf0 [ 165.333956][ C0] ? __pfx_preempt_schedule+0x10/0x10 [ 165.339365][ C0] ? __pfx_addrconf_dad_work+0x10/0x10 [ 165.344893][ C0] ? preempt_schedule_thunk+0x1a/0x30 [ 165.350297][ C0] ? process_scheduled_works+0x945/0x1830 [ 165.356084][ C0] process_scheduled_works+0xa2c/0x1830 [ 165.361685][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 165.367724][ C0] ? assign_work+0x364/0x3d0 [ 165.372339][ C0] worker_thread+0x86d/0xd40 [ 165.376985][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 165.383013][ C0] ? __kthread_parkme+0x169/0x1d0 [ 165.388091][ C0] ? __pfx_worker_thread+0x10/0x10 [ 165.393220][ C0] kthread+0x2f0/0x390 [ 165.397333][ C0] ? __pfx_worker_thread+0x10/0x10 [ 165.402461][ C0] ? __pfx_kthread+0x10/0x10 [ 165.407089][ C0] ret_from_fork+0x4b/0x80 [ 165.411526][ C0] ? __pfx_kthread+0x10/0x10 [ 165.416150][ C0] ret_from_fork_asm+0x1a/0x30 [ 165.420946][ C0] [ 165.423996][ C0] DEBUG: waiting rtnl_mutex for 2215 jiffies. [ 165.430063][ C0] task:syz-executor state:D stack:21728 pid:5213 tgid:5213 ppid:5209 flags:0x00004002 [ 165.440303][ C0] Call Trace: [ 165.443596][ C0] [ 165.446576][ C0] __schedule+0x1800/0x4a60 [ 165.451165][ C0] ? __pfx___schedule+0x10/0x10 [ 165.456093][ C0] ? __pfx_lock_release+0x10/0x10 [ 165.461147][ C0] ? __mutex_trylock_common+0x92/0x2e0 [ 165.466751][ C0] ? schedule+0x90/0x320 [ 165.471017][ C0] schedule+0x14b/0x320 [ 165.475221][ C0] schedule_preempt_disabled+0x13/0x30 [ 165.480714][ C0] __mutex_lock+0x6a4/0xd70 [ 165.485269][ C0] ? __mutex_lock+0x527/0xd70 [ 165.489972][ C0] ? unregister_netdevice_notifier_net+0x89/0x3a0 [ 165.496453][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 165.501526][ C0] ? get_rtnl_holder+0x144/0x190 [ 165.506521][ C0] unregister_netdevice_notifier_net+0x89/0x3a0 [ 165.512788][ C0] ? _raw_spin_unlock+0x28/0x50 [ 165.517689][ C0] ? mntput_no_expire+0x2da/0x850 [ 165.522735][ C0] ? __pfx_unregister_netdevice_notifier_net+0x10/0x10 [ 165.529634][ C0] ? __pfx_mntput_no_expire+0x10/0x10 [ 165.535061][ C0] ? _raw_spin_unlock+0x28/0x50 [ 165.539928][ C0] ? simple_release_fs+0x9c/0xd0 [ 165.544921][ C0] nsim_dev_hwstats_exit+0x81/0x290 [ 165.550144][ C0] ? kfree+0x149/0x360 [ 165.554262][ C0] nsim_dev_reload_destroy+0x2ad/0x490 [ 165.559758][ C0] ? __pfx_nsim_bus_remove+0x10/0x10 [ 165.565114][ C0] nsim_drv_remove+0x58/0x160 [ 165.569827][ C0] device_release_driver_internal+0x4a9/0x7c0 [ 165.575964][ C0] bus_remove_device+0x34f/0x420 [ 165.580938][ C0] device_del+0x57a/0x9b0 [ 165.585337][ C0] ? __pfx_device_del+0x10/0x10 [ 165.590221][ C0] device_unregister+0x20/0xc0 [ 165.595051][ C0] del_device_store+0x363/0x480 [ 165.599939][ C0] ? __pfx_del_device_store+0x10/0x10 [ 165.605360][ C0] ? sysfs_kf_write+0x182/0x2a0 [ 165.610226][ C0] ? bus_attr_store+0x4f/0xa0 [ 165.614952][ C0] ? __pfx_sysfs_kf_write+0x10/0x10 [ 165.620167][ C0] kernfs_fop_write_iter+0x3a1/0x500 [ 165.625504][ C0] vfs_write+0xa72/0xc90 [ 165.629778][ C0] ? __pfx_kernfs_fop_write_iter+0x10/0x10 [ 165.635626][ C0] ? __pfx_vfs_write+0x10/0x10 [ 165.640422][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 165.645659][ C0] ? blkcg_maybe_throttle_current+0x1ab/0xb80 [ 165.651754][ C0] ksys_write+0x1a0/0x2c0 [ 165.656137][ C0] ? __pfx_ksys_write+0x10/0x10 [ 165.661025][ C0] ? do_syscall_64+0x100/0x230 [ 165.665836][ C0] ? do_syscall_64+0xb6/0x230 [ 165.670531][ C0] do_syscall_64+0xf3/0x230 [ 165.675071][ C0] ? clear_bhb_loop+0x35/0x90 [ 165.679771][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 165.685712][ C0] RIP: 0033:0x7f49cd7746df [ 165.690149][ C0] RSP: 002b:00007ffce9b11af0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 165.698690][ C0] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f49cd7746df [ 165.706696][ C0] RDX: 0000000000000001 RSI: 00007ffce9b11b40 RDI: 0000000000000005 [ 165.714707][ C0] RBP: 00007f49cd7e45b2 R08: 0000000000000000 R09: 00007ffce9b11947 [ 165.722695][ C0] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 [ 165.730706][ C0] R13: 00007ffce9b11b40 R14: 00007f49ce434620 R15: 0000000000000003 [ 165.738746][ C0] [ 165.741778][ C0] [ 165.741778][ C0] Showing all locks held in the system: [ 165.749525][ C0] 2 locks held by kworker/u8:2/35: [ 165.754667][ C0] #0: ffff888015089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 165.766406][ C0] #1: ffffc90000ab7d00 ((reaper_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 165.777187][ C0] 5 locks held by kworker/u8:3/53: [ 165.782311][ C0] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 165.793260][ C0] #1: ffffc90000bd7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 165.803859][ C0] #2: ffffffff8f5fddd0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 165.813307][ C0] #3: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 165.823380][ C0] #4: ffffffff8e33ce38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 165.834422][ C0] 2 locks held by kworker/u8:5/953: [ 165.839647][ C0] #0: ffff888015089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 165.851409][ C0] #1: ffffc90003e77d00 (connector_reaper_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 165.862592][ C0] 3 locks held by kworker/u8:8/2851: [ 165.868036][ C0] #0: ffff888029d05148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 165.879885][ C0] #1: ffffc90009a97d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 165.892758][ C0] #2: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 165.902261][ C0] 2 locks held by dhcpcd/4767: [ 165.907058][ C0] #0: ffff88801bb47678 (nlk_cb_mutex-ROUTE){+.+.}-{3:3}, at: __netlink_dump_start+0x119/0x790 [ 165.917491][ C0] #1: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_dumpit+0x9e/0x210 [ 165.926450][ C0] 2 locks held by getty/4850: [ 165.931131][ C0] #0: ffff88802a85f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 165.940943][ C0] #1: ffffc900031232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 165.951116][ C0] 2 locks held by kworker/0:3/5198: [ 165.956351][ C0] 7 locks held by syz-executor/5213: [ 165.961648][ C0] #0: ffff88802a02a420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 [ 165.970633][ C0] #1: ffff88807f7a0888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 [ 165.980468][ C0] #2: ffff88802286e2d8 (kn->active#53){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 [ 165.990563][ C0] #3: ffffffff8ef0c528 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 [ 166.000903][ C0] #4: ffff8880515300e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xce/0x7c0 [ 166.011505][ C0] #5: ffff888051531250 (&devlink->lock_key){+.+.}-{3:3}, at: nsim_drv_remove+0x50/0x160 [ 166.021420][ C0] #6: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: unregister_netdevice_notifier_net+0x89/0x3a0 [ 166.032192][ C0] 4 locks held by syz-executor/5218: [ 166.037505][ C0] #0: ffff88802a02a420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 [ 166.046466][ C0] #1: ffff88807beca488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 [ 166.056285][ C0] #2: ffff88802286e2d8 (kn->active#53){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 [ 166.066372][ C0] #3: ffffffff8ef0c528 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 [ 166.076719][ C0] 4 locks held by syz-executor/5217: [ 166.082014][ C0] #0: ffff88802a02a420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 [ 166.090977][ C0] #1: ffff88804e279c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 [ 166.100795][ C0] #2: ffff88802286e2d8 (kn->active#53){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 [ 166.110904][ C0] #3: ffffffff8ef0c528 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 [ 166.121259][ C0] 3 locks held by kworker/1:4/5269: [ 166.126499][ C0] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 166.137532][ C0] #1: ffffc9000362fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 166.148570][ C0] #2: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 166.157606][ C0] 3 locks held by kworker/u8:9/5311: [ 166.162894][ C0] 3 locks held by syz.0.40/5372: [ 166.167860][ C0] #0: ffff8880299d8580 (&u->iolock){+.+.}-{3:3}, at: __unix_dgram_recvmsg+0x246/0x12f0 [ 166.177688][ C0] #1: ffffc90000007c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 166.187855][ C0] #2: ffffffff8e337a60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 166.197766][ C0] 2 locks held by syz.1.41/5377: [ 166.202704][ C0] [ 166.205058][ C0] ============================================= [ 166.205058][ C0] 2024/07/22 07:06:37 executed programs: 34 [ 166.806087][ T53] team0 (unregistering): Port device team_slave_0 removed [ 167.233831][ C0] DEBUG: waiting rtnl_mutex for 2195 jiffies. [ 167.239944][ C0] task:kworker/1:4 state:D stack:25104 pid:5269 tgid:5269 ppid:2 flags:0x00004000 [ 167.250211][ C0] Workqueue: events linkwatch_event [ 167.255462][ C0] Call Trace: [ 167.258749][ C0] [ 167.261693][ C0] __schedule+0x1800/0x4a60 [ 167.266265][ C0] ? __pfx___schedule+0x10/0x10 [ 167.271133][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 167.277164][ C0] ? __pfx_lock_release+0x10/0x10 [ 167.282207][ C0] ? kick_pool+0x1bd/0x620 [ 167.286668][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 167.291898][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 167.297177][ C0] ? schedule+0x90/0x320 [ 167.301449][ C0] schedule+0x14b/0x320 [ 167.305660][ C0] schedule_preempt_disabled+0x13/0x30 [ 167.311137][ C0] __mutex_lock+0x6a4/0xd70 [ 167.315701][ C0] ? __mutex_lock+0x527/0xd70 [ 167.320402][ C0] ? linkwatch_event+0xe/0x60 [ 167.325119][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 167.330177][ C0] ? get_rtnl_holder+0x144/0x190 [ 167.335155][ C0] ? process_scheduled_works+0x945/0x1830 [ 167.340888][ C0] linkwatch_event+0xe/0x60 [ 167.345426][ C0] process_scheduled_works+0xa2c/0x1830 [ 167.351019][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 167.357071][ C0] ? assign_work+0x364/0x3d0 [ 167.361697][ C0] worker_thread+0x86d/0xd40 [ 167.366359][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 167.372284][ C0] ? __kthread_parkme+0x169/0x1d0 [ 167.377399][ C0] ? __pfx_worker_thread+0x10/0x10 [ 167.382532][ C0] kthread+0x2f0/0x390 [ 167.386646][ C0] ? __pfx_worker_thread+0x10/0x10 [ 167.391781][ C0] ? __pfx_kthread+0x10/0x10 [ 167.396421][ C0] ret_from_fork+0x4b/0x80 [ 167.400865][ C0] ? __pfx_kthread+0x10/0x10 [ 167.405500][ C0] ret_from_fork_asm+0x1a/0x30 [ 167.410298][ C0] [ 167.413326][ C0] DEBUG: waiting rtnl_mutex for 1689 jiffies. [ 167.419422][ C0] task:dhcpcd state:D stack:20672 pid:4767 tgid:4767 ppid:4766 flags:0x00000002 [ 167.429657][ C0] Call Trace: [ 167.432959][ C0] [ 167.435938][ C0] __schedule+0x1800/0x4a60 [ 167.440489][ C0] ? __pfx___schedule+0x10/0x10 [ 167.445398][ C0] ? __pfx_lock_release+0x10/0x10 [ 167.450448][ C0] ? __mutex_trylock_common+0x92/0x2e0 [ 167.456025][ C0] ? schedule+0x90/0x320 [ 167.460306][ C0] schedule+0x14b/0x320 [ 167.464516][ C0] schedule_preempt_disabled+0x13/0x30 [ 167.469998][ C0] __mutex_lock+0x6a4/0xd70 [ 167.474597][ C0] ? __mutex_lock+0x527/0xd70 [ 167.479310][ C0] ? rtnl_dumpit+0x9e/0x210 [ 167.483902][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 167.488967][ C0] ? __alloc_skb+0x28f/0x440 [ 167.493587][ C0] ? get_rtnl_holder+0x144/0x190 [ 167.498571][ C0] ? __pfx_rtnl_dump_ifinfo+0x10/0x10 [ 167.503991][ C0] rtnl_dumpit+0x9e/0x210 [ 167.508360][ C0] netlink_dump+0x647/0xd80 [ 167.512877][ C0] ? __pfx_netlink_dump+0x10/0x10 [ 167.517954][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 167.523000][ C0] __netlink_dump_start+0x5a2/0x790 [ 167.528258][ C0] ? __pfx_rtnl_dump_ifinfo+0x10/0x10 [ 167.533641][ C0] rtnetlink_rcv_msg+0xb42/0xd00 [ 167.538620][ C0] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 167.544190][ C0] ? __pfx_rtnl_dumpit+0x10/0x10 [ 167.549167][ C0] ? __pfx_rtnl_dump_ifinfo+0x10/0x10 [ 167.554631][ C0] netlink_rcv_skb+0x1e3/0x430 [ 167.559413][ C0] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 167.564921][ C0] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 167.570315][ C0] ? netlink_deliver_tap+0x2e/0x1b0 [ 167.575633][ C0] netlink_unicast+0x7f6/0x990 [ 167.580420][ C0] ? __pfx_netlink_unicast+0x10/0x10 [ 167.585751][ C0] ? __virt_addr_valid+0x183/0x530 [ 167.590890][ C0] ? __check_object_size+0x49c/0x900 [ 167.596221][ C0] ? bpf_lsm_netlink_send+0x9/0x10 [ 167.601358][ C0] netlink_sendmsg+0x8e4/0xcb0 [ 167.606197][ C0] ? __pfx_netlink_sendmsg+0x10/0x10 [ 167.611509][ C0] ? aa_sock_msg_perm+0x91/0x160 [ 167.616510][ C0] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 167.621815][ C0] ? security_socket_sendmsg+0x87/0xb0 [ 167.627345][ C0] ? __pfx_netlink_sendmsg+0x10/0x10 [ 167.632637][ C0] __sock_sendmsg+0x221/0x270 [ 167.637350][ C0] __sys_sendto+0x3a4/0x4f0 [ 167.641870][ C0] ? __pfx___sys_sendto+0x10/0x10 [ 167.646967][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 167.652965][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 167.659334][ C0] __x64_sys_sendto+0xde/0x100 [ 167.664163][ C0] do_syscall_64+0xf3/0x230 [ 167.668680][ C0] ? clear_bhb_loop+0x35/0x90 [ 167.673346][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 167.679271][ C0] RIP: 0033:0x7f586e901ad7 [ 167.683694][ C0] RSP: 002b:00007ffc3a45a318 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 167.692227][ C0] RAX: ffffffffffffffda RBX: 00007ffc3a45b440 RCX: 00007f586e901ad7 [ 167.700229][ C0] RDX: 0000000000000014 RSI: 00007ffc3a45b360 RDI: 0000000000000018 [ 167.708250][ C0] RBP: 00007ffc3a45b3d0 R08: 00007ffc3a45b344 R09: 000000000000000c [ 167.716258][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000012 [ 167.724281][ C0] R13: 00007ffc3a45b344 R14: 00007ffc3a45b360 R15: 0000000000000105 [ 167.732287][ C0] [ 167.735345][ C0] DEBUG: holding rtnl_mutex for 2456 jiffies. [ 167.741422][ C0] task:kworker/u8:3 state:D stack:21808 pid:53 tgid:53 ppid:2 flags:0x00004000 [ 167.751642][ C0] Workqueue: netns cleanup_net [ 167.756461][ C0] Call Trace: [ 167.759739][ C0] [ 167.762660][ C0] __schedule+0x1800/0x4a60 [ 167.767210][ C0] ? __pfx___schedule+0x10/0x10 [ 167.772087][ C0] ? __pfx_lock_release+0x10/0x10 [ 167.777172][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 167.783079][ C0] ? kthread_data+0x52/0xd0 [ 167.787619][ C0] ? wq_worker_sleeping+0x66/0x240 [ 167.792747][ C0] ? schedule+0x90/0x320 [ 167.797039][ C0] schedule+0x14b/0x320 [ 167.801239][ C0] synchronize_rcu_expedited+0x684/0x830 [ 167.806923][ C0] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 167.813096][ C0] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 167.818429][ C0] ? __pfx___might_resched+0x10/0x10 [ 167.823723][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 167.829747][ C0] ? __pfx_autoremove_wake_function+0x10/0x10 [ 167.835865][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 167.842214][ C0] synchronize_rcu+0x11b/0x360 [ 167.847028][ C0] ? __pfx_synchronize_rcu+0x10/0x10 [ 167.852345][ C0] lockdep_unregister_key+0x4b7/0x540 [ 167.857771][ C0] ? __pfx_lockdep_unregister_key+0x10/0x10 [ 167.863707][ C0] ? rcu_is_watching+0x15/0xb0 [ 167.868533][ C0] ? qdisc_reset+0x3bf/0x5b0 [ 167.873137][ C0] __qdisc_destroy+0x165/0x410 [ 167.877948][ C0] dev_shutdown+0x9b/0x450 [ 167.882379][ C0] unregister_netdevice_many_notify+0x97b/0x1c40 [ 167.888751][ C0] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 167.895581][ C0] ? unregister_netdevice_queue+0x26b/0x370 [ 167.901488][ C0] ? batadv_softif_destroy_netlink+0x1e3/0x270 [ 167.907677][ C0] default_device_exit_batch+0xa0f/0xa90 [ 167.913326][ C0] ? __pfx___might_resched+0x10/0x10 [ 167.918654][ C0] ? __pfx_default_device_exit_batch+0x10/0x10 [ 167.924911][ C0] ? cfg802154_pernet_exit+0xc3/0xe0 [ 167.930208][ C0] ? __pfx_default_device_exit_batch+0x10/0x10 [ 167.936412][ C0] cleanup_net+0x89d/0xcc0 [ 167.940848][ C0] ? __pfx_cleanup_net+0x10/0x10 [ 167.945843][ C0] ? process_scheduled_works+0x945/0x1830 [ 167.951573][ C0] process_scheduled_works+0xa2c/0x1830 [ 167.957279][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 167.963279][ C0] ? assign_work+0x364/0x3d0 [ 167.967904][ C0] worker_thread+0x86d/0xd40 [ 167.972518][ C0] ? __kthread_parkme+0x169/0x1d0 [ 167.977603][ C0] ? __pfx_worker_thread+0x10/0x10 [ 167.982736][ C0] kthread+0x2f0/0x390 [ 167.986854][ C0] ? __pfx_worker_thread+0x10/0x10 [ 167.991987][ C0] ? __pfx_kthread+0x10/0x10 [ 167.996610][ C0] ret_from_fork+0x4b/0x80 [ 168.001017][ C0] ? __pfx_kthread+0x10/0x10 [ 168.005646][ C0] ret_from_fork_asm+0x1a/0x30 [ 168.010429][ C0] [ 168.013447][ C0] DEBUG: waiting rtnl_mutex for 2483 jiffies. [ 168.019546][ C0] task:kworker/u8:8 state:D stack:21352 pid:2851 tgid:2851 ppid:2 flags:0x00004000 [ 168.029747][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 168.035757][ C0] Call Trace: [ 168.039039][ C0] [ 168.041955][ C0] __schedule+0x1800/0x4a60 [ 168.046522][ C0] ? __pfx___schedule+0x10/0x10 [ 168.051391][ C0] ? __pfx_lock_release+0x10/0x10 [ 168.056455][ C0] ? wq_worker_sleeping+0x24/0x240 [ 168.061581][ C0] ? kthread_data+0x52/0xd0 [ 168.066133][ C0] ? schedule+0x90/0x320 [ 168.070386][ C0] ? wq_worker_sleeping+0x66/0x240 [ 168.075615][ C0] ? schedule+0x90/0x320 [ 168.079875][ C0] schedule+0x14b/0x320 [ 168.084073][ C0] schedule_preempt_disabled+0x13/0x30 [ 168.089559][ C0] __mutex_lock+0x6a4/0xd70 [ 168.094135][ C0] ? mark_lock+0x9a/0x360 [ 168.098486][ C0] ? __mutex_lock+0x527/0xd70 [ 168.103184][ C0] ? addrconf_dad_work+0xd0/0x16f0 [ 168.108361][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 168.113416][ C0] ? get_rtnl_holder+0x144/0x190 [ 168.118407][ C0] addrconf_dad_work+0xd0/0x16f0 [ 168.123354][ C0] ? preempt_schedule+0xe1/0xf0 [ 168.128246][ C0] ? __pfx_preempt_schedule+0x10/0x10 [ 168.133626][ C0] ? __pfx_addrconf_dad_work+0x10/0x10 [ 168.139120][ C0] ? preempt_schedule_thunk+0x1a/0x30 [ 168.144555][ C0] ? process_scheduled_works+0x945/0x1830 [ 168.150286][ C0] process_scheduled_works+0xa2c/0x1830 [ 168.155896][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 168.161890][ C0] ? assign_work+0x364/0x3d0 [ 168.166536][ C0] worker_thread+0x86d/0xd40 [ 168.171148][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 168.177070][ C0] ? __kthread_parkme+0x169/0x1d0 [ 168.182375][ C0] ? __pfx_worker_thread+0x10/0x10 [ 168.187539][ C0] kthread+0x2f0/0x390 [ 168.191614][ C0] ? __pfx_worker_thread+0x10/0x10 [ 168.196757][ C0] ? __pfx_kthread+0x10/0x10 [ 168.201392][ C0] ret_from_fork+0x4b/0x80 [ 168.205861][ C0] ? __pfx_kthread+0x10/0x10 [ 168.210464][ C0] ret_from_fork_asm+0x1a/0x30 [ 168.215272][ C0] [ 168.218308][ C0] DEBUG: waiting rtnl_mutex for 2494 jiffies. [ 168.224433][ C0] task:syz-executor state:D stack:21728 pid:5213 tgid:5213 ppid:5209 flags:0x00004002 [ 168.234645][ C0] Call Trace: [ 168.237933][ C0] [ 168.240878][ C0] __schedule+0x1800/0x4a60 [ 168.245447][ C0] ? __pfx___schedule+0x10/0x10 [ 168.250326][ C0] ? __pfx_lock_release+0x10/0x10 [ 168.255403][ C0] ? __mutex_trylock_common+0x92/0x2e0 [ 168.260896][ C0] ? schedule+0x90/0x320 [ 168.265183][ C0] schedule+0x14b/0x320 [ 168.269354][ C0] schedule_preempt_disabled+0x13/0x30 [ 168.274861][ C0] __mutex_lock+0x6a4/0xd70 [ 168.279398][ C0] ? __mutex_lock+0x527/0xd70 [ 168.284130][ C0] ? unregister_netdevice_notifier_net+0x89/0x3a0 [ 168.290555][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 168.295635][ C0] ? get_rtnl_holder+0x144/0x190 [ 168.300583][ C0] unregister_netdevice_notifier_net+0x89/0x3a0 [ 168.306861][ C0] ? _raw_spin_unlock+0x28/0x50 [ 168.311723][ C0] ? mntput_no_expire+0x2da/0x850 [ 168.316803][ C0] ? __pfx_unregister_netdevice_notifier_net+0x10/0x10 [ 168.323661][ C0] ? __pfx_mntput_no_expire+0x10/0x10 [ 168.329063][ C0] ? _raw_spin_unlock+0x28/0x50 [ 168.333964][ C0] ? simple_release_fs+0x9c/0xd0 [ 168.339016][ C0] nsim_dev_hwstats_exit+0x81/0x290 [ 168.344263][ C0] ? kfree+0x149/0x360 [ 168.348346][ C0] nsim_dev_reload_destroy+0x2ad/0x490 [ 168.353847][ C0] ? __pfx_nsim_bus_remove+0x10/0x10 [ 168.359148][ C0] nsim_drv_remove+0x58/0x160 [ 168.363878][ C0] device_release_driver_internal+0x4a9/0x7c0 [ 168.369984][ C0] bus_remove_device+0x34f/0x420 [ 168.374987][ C0] device_del+0x57a/0x9b0 [ 168.379356][ C0] ? __pfx_device_del+0x10/0x10 [ 168.384279][ C0] device_unregister+0x20/0xc0 [ 168.389061][ C0] del_device_store+0x363/0x480 [ 168.394136][ C0] ? __pfx_del_device_store+0x10/0x10 [ 168.399525][ C0] ? sysfs_kf_write+0x182/0x2a0 [ 168.404417][ C0] ? bus_attr_store+0x4f/0xa0 [ 168.409119][ C0] ? __pfx_sysfs_kf_write+0x10/0x10 [ 168.414378][ C0] kernfs_fop_write_iter+0x3a1/0x500 [ 168.419681][ C0] vfs_write+0xa72/0xc90 [ 168.424073][ C0] ? __pfx_kernfs_fop_write_iter+0x10/0x10 [ 168.429889][ C0] ? __pfx_vfs_write+0x10/0x10 [ 168.434712][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 168.439938][ C0] ? blkcg_maybe_throttle_current+0x1ab/0xb80 [ 168.446058][ C0] ksys_write+0x1a0/0x2c0 [ 168.450406][ C0] ? __pfx_ksys_write+0x10/0x10 [ 168.455376][ C0] ? do_syscall_64+0x100/0x230 [ 168.460152][ C0] ? do_syscall_64+0xb6/0x230 [ 168.464872][ C0] do_syscall_64+0xf3/0x230 [ 168.469384][ C0] ? clear_bhb_loop+0x35/0x90 [ 168.474108][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 168.480015][ C0] RIP: 0033:0x7f49cd7746df [ 168.484466][ C0] RSP: 002b:00007ffce9b11af0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 168.492890][ C0] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f49cd7746df [ 168.500904][ C0] RDX: 0000000000000001 RSI: 00007ffce9b11b40 RDI: 0000000000000005 [ 168.508920][ C0] RBP: 00007f49cd7e45b2 R08: 0000000000000000 R09: 00007ffce9b11947 [ 168.516951][ C0] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 [ 168.524964][ C0] R13: 00007ffce9b11b40 R14: 00007f49ce434620 R15: 0000000000000003 [ 168.532973][ C0] [ 168.536050][ C0] [ 168.536050][ C0] Showing all locks held in the system: [ 168.543817][ C0] 5 locks held by kworker/u8:3/53: [ 168.548936][ C0] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 168.559912][ C0] #1: ffffc90000bd7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 168.570515][ C0] #2: ffffffff8f5fddd0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 168.579970][ C0] #3: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 168.590024][ C0] #4: ffffffff8e33ce38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 168.600963][ C0] 3 locks held by kworker/u8:8/2851: [ 168.606269][ C0] #0: ffff888029d05148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 168.617883][ C0] #1: ffffc90009a97d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 168.630723][ C0] #2: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 168.640161][ C0] 1 lock held by klogd/4542: [ 168.644796][ C0] #0: ffff8880b953ea18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 [ 168.654775][ C0] 2 locks held by dhcpcd/4767: [ 168.659545][ C0] #0: ffff88801bb47678 (nlk_cb_mutex-ROUTE){+.+.}-{3:3}, at: __netlink_dump_start+0x119/0x790 [ 168.669972][ C0] #1: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_dumpit+0x9e/0x210 [ 168.678855][ C0] 2 locks held by getty/4850: [ 168.683540][ C0] #0: ffff88802a85f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 168.693354][ C0] #1: ffffc900031232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 168.703545][ C0] 7 locks held by syz-executor/5213: [ 168.708849][ C0] #0: ffff88802a02a420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 [ 168.717782][ C0] #1: ffff88807f7a0888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 [ 168.727582][ C0] #2: ffff88802286e2d8 (kn->active#53){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 [ 168.737729][ C0] #3: ffffffff8ef0c528 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 [ 168.748056][ C0] #4: ffff8880515300e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xce/0x7c0 [ 168.758625][ C0] #5: ffff888051531250 (&devlink->lock_key){+.+.}-{3:3}, at: nsim_drv_remove+0x50/0x160 [ 168.768548][ C0] #6: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: unregister_netdevice_notifier_net+0x89/0x3a0 [ 168.779295][ C0] 4 locks held by syz-executor/5218: [ 168.784599][ C0] #0: ffff88802a02a420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 [ 168.793472][ C0] #1: ffff88807beca488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 [ 168.803271][ C0] #2: ffff88802286e2d8 (kn->active#53){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 [ 168.813353][ C0] #3: ffffffff8ef0c528 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 [ 168.823718][ C0] 4 locks held by syz-executor/5217: [ 168.829050][ C0] #0: ffff88802a02a420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 [ 168.838046][ C0] #1: ffff88804e279c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 [ 168.847855][ C0] #2: ffff88802286e2d8 (kn->active#53){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 [ 168.857918][ C0] #3: ffffffff8ef0c528 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 [ 168.868241][ C0] 3 locks held by kworker/1:4/5269: [ 168.873421][ C0] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 168.884523][ C0] #1: ffffc9000362fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 168.895578][ C0] #2: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 168.904624][ C0] 2 locks held by syz.1.43/5385: [ 168.909563][ C0] #0: ffffc90000007c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 168.919715][ C0] #1: ffffffff8e337a60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 168.929618][ C0] [ 168.931930][ C0] ============================================= [ 168.931930][ C0] [ 169.963828][ C0] DEBUG: waiting rtnl_mutex for 2468 jiffies. [ 169.969947][ C0] task:kworker/1:4 state:D stack:25104 pid:5269 tgid:5269 ppid:2 flags:0x00004000 [ 169.980206][ C0] Workqueue: events linkwatch_event [ 169.985464][ C0] Call Trace: [ 169.988755][ C0] [ 169.991699][ C0] __schedule+0x1800/0x4a60 [ 169.996283][ C0] ? __pfx___schedule+0x10/0x10 [ 170.001151][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 170.007179][ C0] ? __pfx_lock_release+0x10/0x10 [ 170.012221][ C0] ? kick_pool+0x1bd/0x620 [ 170.016729][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 170.021940][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 170.027184][ C0] ? schedule+0x90/0x320 [ 170.031438][ C0] schedule+0x14b/0x320 [ 170.035645][ C0] schedule_preempt_disabled+0x13/0x30 [ 170.041117][ C0] __mutex_lock+0x6a4/0xd70 [ 170.045670][ C0] ? __mutex_lock+0x527/0xd70 [ 170.050365][ C0] ? linkwatch_event+0xe/0x60 [ 170.055094][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 170.060145][ C0] ? get_rtnl_holder+0x144/0x190 [ 170.065132][ C0] ? process_scheduled_works+0x945/0x1830 [ 170.070872][ C0] linkwatch_event+0xe/0x60 [ 170.075476][ C0] process_scheduled_works+0xa2c/0x1830 [ 170.081067][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 170.087097][ C0] ? assign_work+0x364/0x3d0 [ 170.091709][ C0] worker_thread+0x86d/0xd40 [ 170.096356][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 170.102269][ C0] ? __kthread_parkme+0x169/0x1d0 [ 170.107343][ C0] ? __pfx_worker_thread+0x10/0x10 [ 170.112473][ C0] kthread+0x2f0/0x390 [ 170.116579][ C0] ? __pfx_worker_thread+0x10/0x10 [ 170.121713][ C0] ? __pfx_kthread+0x10/0x10 [ 170.126342][ C0] ret_from_fork+0x4b/0x80 [ 170.130776][ C0] ? __pfx_kthread+0x10/0x10 [ 170.135403][ C0] ret_from_fork_asm+0x1a/0x30 [ 170.140202][ C0] [ 170.143227][ C0] DEBUG: waiting rtnl_mutex for 1962 jiffies. [ 170.149319][ C0] task:dhcpcd state:D stack:20672 pid:4767 tgid:4767 ppid:4766 flags:0x00000002 [ 170.159529][ C0] Call Trace: [ 170.162843][ C0] [ 170.165821][ C0] __schedule+0x1800/0x4a60 [ 170.170424][ C0] ? __pfx___schedule+0x10/0x10 [ 170.175345][ C0] ? __pfx_lock_release+0x10/0x10 [ 170.180393][ C0] ? __mutex_trylock_common+0x92/0x2e0 [ 170.185923][ C0] ? schedule+0x90/0x320 [ 170.190194][ C0] schedule+0x14b/0x320 [ 170.194401][ C0] schedule_preempt_disabled+0x13/0x30 [ 170.199900][ C0] __mutex_lock+0x6a4/0xd70 [ 170.204472][ C0] ? __mutex_lock+0x527/0xd70 [ 170.209177][ C0] ? rtnl_dumpit+0x9e/0x210 [ 170.213701][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 170.218806][ C0] ? __alloc_skb+0x28f/0x440 [ 170.223425][ C0] ? get_rtnl_holder+0x144/0x190 [ 170.228412][ C0] ? __pfx_rtnl_dump_ifinfo+0x10/0x10 [ 170.233835][ C0] rtnl_dumpit+0x9e/0x210 [ 170.238180][ C0] netlink_dump+0x647/0xd80 [ 170.242673][ C0] ? __pfx_netlink_dump+0x10/0x10 [ 170.247744][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 170.252791][ C0] __netlink_dump_start+0x5a2/0x790 [ 170.258031][ C0] ? __pfx_rtnl_dump_ifinfo+0x10/0x10 [ 170.263473][ C0] rtnetlink_rcv_msg+0xb42/0xd00 [ 170.268456][ C0] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 170.273972][ C0] ? __pfx_rtnl_dumpit+0x10/0x10 [ 170.278937][ C0] ? __pfx_rtnl_dump_ifinfo+0x10/0x10 [ 170.284387][ C0] netlink_rcv_skb+0x1e3/0x430 [ 170.289340][ C0] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 170.294948][ C0] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 170.300250][ C0] ? netlink_deliver_tap+0x2e/0x1b0 [ 170.305492][ C0] netlink_unicast+0x7f6/0x990 [ 170.310275][ C0] ? __pfx_netlink_unicast+0x10/0x10 [ 170.315612][ C0] ? __virt_addr_valid+0x183/0x530 [ 170.320733][ C0] ? __check_object_size+0x49c/0x900 [ 170.326053][ C0] ? bpf_lsm_netlink_send+0x9/0x10 [ 170.331196][ C0] netlink_sendmsg+0x8e4/0xcb0 [ 170.336040][ C0] ? __pfx_netlink_sendmsg+0x10/0x10 [ 170.341436][ C0] ? aa_sock_msg_perm+0x91/0x160 [ 170.346440][ C0] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 170.351735][ C0] ? security_socket_sendmsg+0x87/0xb0 [ 170.357231][ C0] ? __pfx_netlink_sendmsg+0x10/0x10 [ 170.362525][ C0] __sock_sendmsg+0x221/0x270 [ 170.367267][ C0] __sys_sendto+0x3a4/0x4f0 [ 170.371830][ C0] ? __pfx___sys_sendto+0x10/0x10 [ 170.376950][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 170.382953][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 170.389325][ C0] __x64_sys_sendto+0xde/0x100 [ 170.394157][ C0] do_syscall_64+0xf3/0x230 [ 170.398674][ C0] ? clear_bhb_loop+0x35/0x90 [ 170.403336][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 170.409257][ C0] RIP: 0033:0x7f586e901ad7 [ 170.413686][ C0] RSP: 002b:00007ffc3a45a318 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 170.422135][ C0] RAX: ffffffffffffffda RBX: 00007ffc3a45b440 RCX: 00007f586e901ad7 [ 170.430142][ C0] RDX: 0000000000000014 RSI: 00007ffc3a45b360 RDI: 0000000000000018 [ 170.438140][ C0] RBP: 00007ffc3a45b3d0 R08: 00007ffc3a45b344 R09: 000000000000000c [ 170.446177][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000012 [ 170.454215][ C0] R13: 00007ffc3a45b344 R14: 00007ffc3a45b360 R15: 0000000000000105 [ 170.462224][ C0] [ 170.465283][ C0] DEBUG: holding rtnl_mutex for 2729 jiffies. [ 170.471358][ C0] task:kworker/u8:3 state:D stack:21808 pid:53 tgid:53 ppid:2 flags:0x00004000 [ 170.481607][ C0] Workqueue: netns cleanup_net [ 170.486437][ C0] Call Trace: [ 170.489739][ C0] [ 170.492667][ C0] __schedule+0x1800/0x4a60 [ 170.497231][ C0] ? __pfx___schedule+0x10/0x10 [ 170.502108][ C0] ? __pfx_lock_release+0x10/0x10 [ 170.507185][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 170.513100][ C0] ? kthread_data+0x52/0xd0 [ 170.517662][ C0] ? wq_worker_sleeping+0x66/0x240 [ 170.522796][ C0] ? schedule+0x90/0x320 [ 170.527111][ C0] schedule+0x14b/0x320 [ 170.531290][ C0] synchronize_rcu_expedited+0x684/0x830 [ 170.536961][ C0] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 170.543133][ C0] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 170.548449][ C0] ? __pfx___might_resched+0x10/0x10 [ 170.553788][ C0] ? __pfx_autoremove_wake_function+0x10/0x10 [ 170.559890][ C0] synchronize_rcu+0x11b/0x360 [ 170.564704][ C0] ? __pfx_synchronize_rcu+0x10/0x10 [ 170.570002][ C0] ? lockdep_unlock+0x16a/0x300 [ 170.574901][ C0] ? __pfx_lockdep_unlock+0x10/0x10 [ 170.580132][ C0] lockdep_unregister_key+0x4b7/0x540 [ 170.585584][ C0] ? __pfx_lockdep_unregister_key+0x10/0x10 [ 170.591505][ C0] ? rcu_is_watching+0x15/0xb0 [ 170.596331][ C0] ? qdisc_reset+0x3bf/0x5b0 [ 170.600943][ C0] __qdisc_destroy+0x165/0x410 [ 170.605780][ C0] dev_shutdown+0x357/0x450 [ 170.610293][ C0] unregister_netdevice_many_notify+0x97b/0x1c40 [ 170.616680][ C0] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 170.623462][ C0] ? unregister_netdevice_queue+0x26b/0x370 [ 170.629392][ C0] ? batadv_softif_destroy_netlink+0x1e3/0x270 [ 170.635610][ C0] default_device_exit_batch+0xa0f/0xa90 [ 170.641254][ C0] ? __pfx___might_resched+0x10/0x10 [ 170.646629][ C0] ? __pfx_default_device_exit_batch+0x10/0x10 [ 170.652802][ C0] ? cfg802154_pernet_exit+0xc3/0xe0 [ 170.658118][ C0] ? __pfx_default_device_exit_batch+0x10/0x10 [ 170.664330][ C0] cleanup_net+0x89d/0xcc0 [ 170.668759][ C0] ? __pfx_cleanup_net+0x10/0x10 [ 170.673694][ C0] ? process_scheduled_works+0x945/0x1830 [ 170.679454][ C0] process_scheduled_works+0xa2c/0x1830 [ 170.685091][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 170.691089][ C0] ? assign_work+0x364/0x3d0 [ 170.695731][ C0] worker_thread+0x86d/0xd40 [ 170.700336][ C0] ? __kthread_parkme+0x169/0x1d0 [ 170.705410][ C0] ? __pfx_worker_thread+0x10/0x10 [ 170.710553][ C0] kthread+0x2f0/0x390 [ 170.714683][ C0] ? __pfx_worker_thread+0x10/0x10 [ 170.719810][ C0] ? __pfx_kthread+0x10/0x10 [ 170.724444][ C0] ret_from_fork+0x4b/0x80 [ 170.728872][ C0] ? __pfx_kthread+0x10/0x10 [ 170.733444][ C0] ret_from_fork_asm+0x1a/0x30 [ 170.738248][ C0] [ 170.741275][ C0] DEBUG: waiting rtnl_mutex for 2756 jiffies. [ 170.747376][ C0] task:kworker/u8:8 state:D stack:21352 pid:2851 tgid:2851 ppid:2 flags:0x00004000 [ 170.757581][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 170.763560][ C0] Call Trace: [ 170.766877][ C0] [ 170.769843][ C0] __schedule+0x1800/0x4a60 [ 170.774410][ C0] ? __pfx___schedule+0x10/0x10 [ 170.779282][ C0] ? __pfx_lock_release+0x10/0x10 [ 170.784353][ C0] ? wq_worker_sleeping+0x24/0x240 [ 170.789480][ C0] ? kthread_data+0x52/0xd0 [ 170.794032][ C0] ? schedule+0x90/0x320 [ 170.798285][ C0] ? wq_worker_sleeping+0x66/0x240 [ 170.803381][ C0] ? schedule+0x90/0x320 [ 170.807666][ C0] schedule+0x14b/0x320 [ 170.811834][ C0] schedule_preempt_disabled+0x13/0x30 [ 170.817316][ C0] __mutex_lock+0x6a4/0xd70 [ 170.821834][ C0] ? mark_lock+0x9a/0x360 [ 170.826218][ C0] ? __mutex_lock+0x527/0xd70 [ 170.830918][ C0] ? addrconf_dad_work+0xd0/0x16f0 [ 170.836079][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 170.841121][ C0] ? get_rtnl_holder+0x144/0x190 [ 170.846095][ C0] addrconf_dad_work+0xd0/0x16f0 [ 170.851050][ C0] ? preempt_schedule+0xe1/0xf0 [ 170.855949][ C0] ? __pfx_preempt_schedule+0x10/0x10 [ 170.861336][ C0] ? __pfx_addrconf_dad_work+0x10/0x10 [ 170.866830][ C0] ? preempt_schedule_thunk+0x1a/0x30 [ 170.872215][ C0] ? process_scheduled_works+0x945/0x1830 [ 170.877959][ C0] process_scheduled_works+0xa2c/0x1830 [ 170.883533][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 170.889560][ C0] ? assign_work+0x364/0x3d0 [ 170.894210][ C0] worker_thread+0x86d/0xd40 [ 170.898815][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 170.904751][ C0] ? __kthread_parkme+0x169/0x1d0 [ 170.909792][ C0] ? __pfx_worker_thread+0x10/0x10 [ 170.914949][ C0] kthread+0x2f0/0x390 [ 170.919026][ C0] ? __pfx_worker_thread+0x10/0x10 [ 170.924182][ C0] ? __pfx_kthread+0x10/0x10 [ 170.928779][ C0] ret_from_fork+0x4b/0x80 [ 170.933187][ C0] ? __pfx_kthread+0x10/0x10 [ 170.937802][ C0] ret_from_fork_asm+0x1a/0x30 [ 170.942608][ C0] [ 170.945687][ C0] DEBUG: waiting rtnl_mutex for 2767 jiffies. [ 170.951763][ C0] task:syz-executor state:D stack:21728 pid:5213 tgid:5213 ppid:5209 flags:0x00004002 [ 170.961995][ C0] Call Trace: [ 170.965321][ C0] [ 170.968268][ C0] __schedule+0x1800/0x4a60 [ 170.972820][ C0] ? __pfx___schedule+0x10/0x10 [ 170.977736][ C0] ? __pfx_lock_release+0x10/0x10 [ 170.982783][ C0] ? __mutex_trylock_common+0x92/0x2e0 [ 170.988309][ C0] ? schedule+0x90/0x320 [ 170.992572][ C0] schedule+0x14b/0x320 [ 170.996761][ C0] schedule_preempt_disabled+0x13/0x30 [ 171.002231][ C0] __mutex_lock+0x6a4/0xd70 [ 171.006786][ C0] ? __mutex_lock+0x527/0xd70 [ 171.011478][ C0] ? unregister_netdevice_notifier_net+0x89/0x3a0 [ 171.017919][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 171.022965][ C0] ? get_rtnl_holder+0x144/0x190 [ 171.027951][ C0] unregister_netdevice_notifier_net+0x89/0x3a0 [ 171.034247][ C0] ? _raw_spin_unlock+0x28/0x50 [ 171.039104][ C0] ? mntput_no_expire+0x2da/0x850 [ 171.044168][ C0] ? __pfx_unregister_netdevice_notifier_net+0x10/0x10 [ 171.051028][ C0] ? __pfx_mntput_no_expire+0x10/0x10 [ 171.056437][ C0] ? _raw_spin_unlock+0x28/0x50 [ 171.061299][ C0] ? simple_release_fs+0x9c/0xd0 [ 171.066290][ C0] nsim_dev_hwstats_exit+0x81/0x290 [ 171.071501][ C0] ? kfree+0x149/0x360 [ 171.075624][ C0] nsim_dev_reload_destroy+0x2ad/0x490 [ 171.081106][ C0] ? __pfx_nsim_bus_remove+0x10/0x10 [ 171.086426][ C0] nsim_drv_remove+0x58/0x160 [ 171.091130][ C0] device_release_driver_internal+0x4a9/0x7c0 [ 171.097269][ C0] bus_remove_device+0x34f/0x420 [ 171.102232][ C0] device_del+0x57a/0x9b0 [ 171.106620][ C0] ? __pfx_device_del+0x10/0x10 [ 171.111490][ C0] device_unregister+0x20/0xc0 [ 171.116392][ C0] del_device_store+0x363/0x480 [ 171.121259][ C0] ? __pfx_del_device_store+0x10/0x10 [ 171.126660][ C0] ? sysfs_kf_write+0x182/0x2a0 [ 171.131520][ C0] ? bus_attr_store+0x4f/0xa0 [ 171.136252][ C0] ? __pfx_sysfs_kf_write+0x10/0x10 [ 171.141463][ C0] kernfs_fop_write_iter+0x3a1/0x500 [ 171.146784][ C0] vfs_write+0xa72/0xc90 [ 171.151042][ C0] ? __pfx_kernfs_fop_write_iter+0x10/0x10 [ 171.156895][ C0] ? __pfx_vfs_write+0x10/0x10 [ 171.161686][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 171.167029][ C0] ? blkcg_maybe_throttle_current+0x1ab/0xb80 [ 171.173128][ C0] ksys_write+0x1a0/0x2c0 [ 171.177532][ C0] ? __pfx_ksys_write+0x10/0x10 [ 171.182400][ C0] ? do_syscall_64+0x100/0x230 [ 171.187202][ C0] ? do_syscall_64+0xb6/0x230 [ 171.191896][ C0] do_syscall_64+0xf3/0x230 [ 171.196454][ C0] ? clear_bhb_loop+0x35/0x90 [ 171.201155][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 171.207081][ C0] RIP: 0033:0x7f49cd7746df [ 171.211501][ C0] RSP: 002b:00007ffce9b11af0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 171.219958][ C0] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f49cd7746df [ 171.227972][ C0] RDX: 0000000000000001 RSI: 00007ffce9b11b40 RDI: 0000000000000005 [ 171.235990][ C0] RBP: 00007f49cd7e45b2 R08: 0000000000000000 R09: 00007ffce9b11947 [ 171.244021][ C0] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 [ 171.252003][ C0] R13: 00007ffce9b11b40 R14: 00007f49ce434620 R15: 0000000000000003 [ 171.260046][ C0] [ 171.263082][ C0] [ 171.263082][ C0] Showing all locks held in the system: [ 171.270842][ C0] 5 locks held by kworker/u8:3/53: [ 171.276001][ C0] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 171.286960][ C0] #1: ffffc90000bd7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 171.297575][ C0] #2: ffffffff8f5fddd0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 171.307145][ C0] #3: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 171.317220][ C0] #4: ffffffff8e33ce38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 171.328215][ C0] 3 locks held by kworker/u8:8/2851: [ 171.333506][ C0] #0: ffff888029d05148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 171.345132][ C0] #1: ffffc90009a97d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 171.357987][ C0] #2: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 171.367448][ C0] 2 locks held by dhcpcd/4767: [ 171.372230][ C0] #0: ffff88801bb47678 (nlk_cb_mutex-ROUTE){+.+.}-{3:3}, at: __netlink_dump_start+0x119/0x790 [ 171.382676][ C0] #1: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_dumpit+0x9e/0x210 [ 171.391535][ C0] 2 locks held by getty/4850: [ 171.396342][ C0] #0: ffff88802a85f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 171.406145][ C0] #1: ffffc900031232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 171.416294][ C0] 7 locks held by syz-executor/5213: [ 171.421599][ C0] #0: ffff88802a02a420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 [ 171.430522][ C0] #1: ffff88807f7a0888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 [ 171.440331][ C0] #2: ffff88802286e2d8 (kn->active#53){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 [ 171.450375][ C0] #3: ffffffff8ef0c528 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 [ 171.460804][ C0] #4: ffff8880515300e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xce/0x7c0 [ 171.471381][ C0] #5: ffff888051531250 (&devlink->lock_key){+.+.}-{3:3}, at: nsim_drv_remove+0x50/0x160 [ 171.481302][ C0] #6: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: unregister_netdevice_notifier_net+0x89/0x3a0 [ 171.492106][ C0] 4 locks held by syz-executor/5218: [ 171.497431][ C0] #0: ffff88802a02a420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 [ 171.506407][ C0] #1: ffff88807beca488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 [ 171.516788][ C0] #2: ffff88802286e2d8 (kn->active#53){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 [ 171.526895][ C0] #3: ffffffff8ef0c528 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 [ 171.537267][ C0] 4 locks held by syz-executor/5217: [ 171.542549][ C0] #0: ffff88802a02a420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 [ 171.551480][ C0] #1: ffff88804e279c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 [ 171.561313][ C0] #2: ffff88802286e2d8 (kn->active#53){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 [ 171.571374][ C0] #3: ffffffff8ef0c528 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 [ 171.581702][ C0] 3 locks held by kworker/1:4/5269: [ 171.586922][ C0] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 171.597961][ C0] #1: ffffc9000362fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 171.609015][ C0] #2: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 171.618039][ C0] 2 locks held by kworker/u8:9/5311: [ 171.623304][ C0] #0: ffff888015089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 171.635009][ C0] #1: ffffc9000345fd00 ((reaper_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 171.645801][ C0] 2 locks held by syz.1.45/5394: [ 171.650752][ C0] #0: ffffc90000007c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 171.660939][ C0] #1: ffffffff8e337a60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 171.670849][ C0] [ 171.673179][ C0] ============================================= [ 171.673179][ C0] 2024/07/22 07:06:42 executed programs: 38 [ 172.753833][ C0] DEBUG: waiting rtnl_mutex for 2747 jiffies. [ 172.759958][ C0] task:kworker/1:4 state:D stack:25104 pid:5269 tgid:5269 ppid:2 flags:0x00004000 [ 172.770219][ C0] Workqueue: events linkwatch_event [ 172.775497][ C0] Call Trace: [ 172.778788][ C0] [ 172.781733][ C0] __schedule+0x1800/0x4a60 [ 172.786320][ C0] ? __pfx___schedule+0x10/0x10 [ 172.791198][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 172.797240][ C0] ? __pfx_lock_release+0x10/0x10 [ 172.802291][ C0] ? kick_pool+0x1bd/0x620 [ 172.806768][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 172.812086][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 172.817354][ C0] ? schedule+0x90/0x320 [ 172.821625][ C0] schedule+0x14b/0x320 [ 172.825843][ C0] schedule_preempt_disabled+0x13/0x30 [ 172.831418][ C0] __mutex_lock+0x6a4/0xd70 [ 172.836004][ C0] ? __mutex_lock+0x527/0xd70 [ 172.840716][ C0] ? linkwatch_event+0xe/0x60 [ 172.845464][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 172.850526][ C0] ? get_rtnl_holder+0x144/0x190 [ 172.855514][ C0] ? process_scheduled_works+0x945/0x1830 [ 172.861281][ C0] linkwatch_event+0xe/0x60 [ 172.865836][ C0] process_scheduled_works+0xa2c/0x1830 [ 172.871432][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 172.877467][ C0] ? assign_work+0x364/0x3d0 [ 172.882082][ C0] worker_thread+0x86d/0xd40 [ 172.886729][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 172.892653][ C0] ? __kthread_parkme+0x169/0x1d0 [ 172.897736][ C0] ? __pfx_worker_thread+0x10/0x10 [ 172.902872][ C0] kthread+0x2f0/0x390 [ 172.907009][ C0] ? __pfx_worker_thread+0x10/0x10 [ 172.912140][ C0] ? __pfx_kthread+0x10/0x10 [ 172.916776][ C0] ret_from_fork+0x4b/0x80 [ 172.921214][ C0] ? __pfx_kthread+0x10/0x10 [ 172.925858][ C0] ret_from_fork_asm+0x1a/0x30 [ 172.930670][ C0] [ 172.933709][ C0] DEBUG: waiting rtnl_mutex for 2241 jiffies. [ 172.939810][ C0] task:dhcpcd state:D stack:20672 pid:4767 tgid:4767 ppid:4766 flags:0x00000002 [ 172.950048][ C0] Call Trace: [ 172.953341][ C0] [ 172.956316][ C0] __schedule+0x1800/0x4a60 [ 172.960862][ C0] ? __pfx___schedule+0x10/0x10 [ 172.965786][ C0] ? __pfx_lock_release+0x10/0x10 [ 172.970845][ C0] ? __mutex_trylock_common+0x92/0x2e0 [ 172.976374][ C0] ? schedule+0x90/0x320 [ 172.980659][ C0] schedule+0x14b/0x320 [ 172.984889][ C0] schedule_preempt_disabled+0x13/0x30 [ 172.990371][ C0] __mutex_lock+0x6a4/0xd70 [ 172.994955][ C0] ? __mutex_lock+0x527/0xd70 [ 172.999661][ C0] ? rtnl_dumpit+0x9e/0x210 [ 173.004228][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 173.009286][ C0] ? __alloc_skb+0x28f/0x440 [ 173.013921][ C0] ? get_rtnl_holder+0x144/0x190 [ 173.018876][ C0] ? __pfx_rtnl_dump_ifinfo+0x10/0x10 [ 173.024301][ C0] rtnl_dumpit+0x9e/0x210 [ 173.028662][ C0] netlink_dump+0x647/0xd80 [ 173.033197][ C0] ? __pfx_netlink_dump+0x10/0x10 [ 173.038292][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 173.043348][ C0] __netlink_dump_start+0x5a2/0x790 [ 173.048603][ C0] ? __pfx_rtnl_dump_ifinfo+0x10/0x10 [ 173.054042][ C0] rtnetlink_rcv_msg+0xb42/0xd00 [ 173.059052][ C0] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 173.064561][ C0] ? __pfx_rtnl_dumpit+0x10/0x10 [ 173.069543][ C0] ? __pfx_rtnl_dump_ifinfo+0x10/0x10 [ 173.074976][ C0] netlink_rcv_skb+0x1e3/0x430 [ 173.079759][ C0] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 173.085266][ C0] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 173.090591][ C0] ? netlink_deliver_tap+0x2e/0x1b0 [ 173.095841][ C0] netlink_unicast+0x7f6/0x990 [ 173.100639][ C0] ? __pfx_netlink_unicast+0x10/0x10 [ 173.105970][ C0] ? __virt_addr_valid+0x183/0x530 [ 173.111107][ C0] ? __check_object_size+0x49c/0x900 [ 173.116432][ C0] ? bpf_lsm_netlink_send+0x9/0x10 [ 173.121566][ C0] netlink_sendmsg+0x8e4/0xcb0 [ 173.126381][ C0] ? __pfx_netlink_sendmsg+0x10/0x10 [ 173.131681][ C0] ? aa_sock_msg_perm+0x91/0x160 [ 173.136669][ C0] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 173.141968][ C0] ? security_socket_sendmsg+0x87/0xb0 [ 173.147478][ C0] ? __pfx_netlink_sendmsg+0x10/0x10 [ 173.152776][ C0] __sock_sendmsg+0x221/0x270 [ 173.157514][ C0] __sys_sendto+0x3a4/0x4f0 [ 173.162044][ C0] ? __pfx___sys_sendto+0x10/0x10 [ 173.167151][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 173.173153][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 173.179535][ C0] __x64_sys_sendto+0xde/0x100 [ 173.184348][ C0] do_syscall_64+0xf3/0x230 [ 173.188864][ C0] ? clear_bhb_loop+0x35/0x90 [ 173.193559][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 173.199497][ C0] RIP: 0033:0x7f586e901ad7 [ 173.203948][ C0] RSP: 002b:00007ffc3a45a318 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 173.212376][ C0] RAX: ffffffffffffffda RBX: 00007ffc3a45b440 RCX: 00007f586e901ad7 [ 173.220391][ C0] RDX: 0000000000000014 RSI: 00007ffc3a45b360 RDI: 0000000000000018 [ 173.228485][ C0] RBP: 00007ffc3a45b3d0 R08: 00007ffc3a45b344 R09: 000000000000000c [ 173.236503][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000012 [ 173.244605][ C0] R13: 00007ffc3a45b344 R14: 00007ffc3a45b360 R15: 0000000000000105 [ 173.252610][ C0] [ 173.255669][ C0] DEBUG: holding rtnl_mutex for 3008 jiffies. [ 173.261737][ C0] task:kworker/u8:3 state:D stack:21808 pid:53 tgid:53 ppid:2 flags:0x00004000 [ 173.271944][ C0] Workqueue: netns cleanup_net [ 173.276756][ C0] Call Trace: [ 173.280049][ C0] [ 173.282989][ C0] __schedule+0x1800/0x4a60 [ 173.287565][ C0] ? __pfx___schedule+0x10/0x10 [ 173.292447][ C0] ? __pfx_lock_release+0x10/0x10 [ 173.297519][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 173.303435][ C0] ? kthread_data+0x52/0xd0 [ 173.307982][ C0] ? wq_worker_sleeping+0x66/0x240 [ 173.313114][ C0] ? schedule+0x90/0x320 [ 173.317396][ C0] schedule+0x14b/0x320 [ 173.321571][ C0] synchronize_rcu_expedited+0x684/0x830 [ 173.327250][ C0] ? __pfx_synchronize_rcu_expedited+0x10/0x10 [ 173.333433][ C0] ? __pfx_wait_rcu_exp_gp+0x10/0x10 [ 173.338765][ C0] ? __pfx___might_resched+0x10/0x10 [ 173.344098][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 173.350100][ C0] ? __pfx_autoremove_wake_function+0x10/0x10 [ 173.356206][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 173.362563][ C0] synchronize_rcu+0x11b/0x360 [ 173.367428][ C0] ? __pfx_synchronize_rcu+0x10/0x10 [ 173.372771][ C0] ? __phys_addr+0x105/0x170 [ 173.377427][ C0] lockdep_unregister_key+0x4b7/0x540 [ 173.382833][ C0] ? __pfx_lockdep_unregister_key+0x10/0x10 [ 173.388783][ C0] ? rcu_is_watching+0x15/0xb0 [ 173.393562][ C0] ? qdisc_reset+0x3bf/0x5b0 [ 173.398228][ C0] __qdisc_destroy+0x165/0x410 [ 173.403022][ C0] dev_shutdown+0x357/0x450 [ 173.407606][ C0] unregister_netdevice_many_notify+0x97b/0x1c40 [ 173.414020][ C0] ? __pfx_unregister_netdevice_many_notify+0x10/0x10 [ 173.420842][ C0] ? unregister_netdevice_queue+0x26b/0x370 [ 173.426798][ C0] ? batadv_softif_destroy_netlink+0x1e3/0x270 [ 173.433012][ C0] default_device_exit_batch+0xa0f/0xa90 [ 173.438709][ C0] ? __pfx___might_resched+0x10/0x10 [ 173.444054][ C0] ? __pfx_default_device_exit_batch+0x10/0x10 [ 173.450237][ C0] ? cfg802154_pernet_exit+0xc3/0xe0 [ 173.455569][ C0] ? __pfx_default_device_exit_batch+0x10/0x10 [ 173.461741][ C0] cleanup_net+0x89d/0xcc0 [ 173.466211][ C0] ? __pfx_cleanup_net+0x10/0x10 [ 173.471177][ C0] ? process_scheduled_works+0x945/0x1830 [ 173.476936][ C0] process_scheduled_works+0xa2c/0x1830 [ 173.482527][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 173.488559][ C0] ? assign_work+0x364/0x3d0 [ 173.493173][ C0] worker_thread+0x86d/0xd40 [ 173.497872][ C0] ? __kthread_parkme+0x169/0x1d0 [ 173.502959][ C0] ? __pfx_worker_thread+0x10/0x10 [ 173.508133][ C0] kthread+0x2f0/0x390 [ 173.512221][ C0] ? __pfx_worker_thread+0x10/0x10 [ 173.517417][ C0] ? __pfx_kthread+0x10/0x10 [ 173.522212][ C0] ret_from_fork+0x4b/0x80 [ 173.526683][ C0] ? __pfx_kthread+0x10/0x10 [ 173.531296][ C0] ret_from_fork_asm+0x1a/0x30 [ 173.536150][ C0] [ 173.539186][ C0] DEBUG: waiting rtnl_mutex for 3036 jiffies. [ 173.545294][ C0] task:kworker/u8:8 state:D stack:21352 pid:2851 tgid:2851 ppid:2 flags:0x00004000 [ 173.555549][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 173.561587][ C0] Call Trace: [ 173.564917][ C0] [ 173.567867][ C0] __schedule+0x1800/0x4a60 [ 173.572433][ C0] ? __pfx___schedule+0x10/0x10 [ 173.577343][ C0] ? __pfx_lock_release+0x10/0x10 [ 173.582392][ C0] ? wq_worker_sleeping+0x24/0x240 [ 173.587560][ C0] ? kthread_data+0x52/0xd0 [ 173.592082][ C0] ? schedule+0x90/0x320 [ 173.596367][ C0] ? wq_worker_sleeping+0x66/0x240 [ 173.601502][ C0] ? schedule+0x90/0x320 [ 173.605785][ C0] schedule+0x14b/0x320 [ 173.609960][ C0] schedule_preempt_disabled+0x13/0x30 [ 173.615463][ C0] __mutex_lock+0x6a4/0xd70 [ 173.619984][ C0] ? mark_lock+0x9a/0x360 [ 173.624361][ C0] ? __mutex_lock+0x527/0xd70 [ 173.629061][ C0] ? addrconf_dad_work+0xd0/0x16f0 [ 173.634220][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 173.639273][ C0] ? get_rtnl_holder+0x144/0x190 [ 173.644252][ C0] addrconf_dad_work+0xd0/0x16f0 [ 173.649219][ C0] ? preempt_schedule+0xe1/0xf0 [ 173.654120][ C0] ? __pfx_preempt_schedule+0x10/0x10 [ 173.659518][ C0] ? __pfx_addrconf_dad_work+0x10/0x10 [ 173.665027][ C0] ? preempt_schedule_thunk+0x1a/0x30 [ 173.670420][ C0] ? process_scheduled_works+0x945/0x1830 [ 173.676177][ C0] process_scheduled_works+0xa2c/0x1830 [ 173.681767][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 173.687799][ C0] ? assign_work+0x364/0x3d0 [ 173.692421][ C0] worker_thread+0x86d/0xd40 [ 173.697061][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 173.702974][ C0] ? __kthread_parkme+0x169/0x1d0 [ 173.708046][ C0] ? __pfx_worker_thread+0x10/0x10 [ 173.713173][ C0] kthread+0x2f0/0x390 [ 173.717280][ C0] ? __pfx_worker_thread+0x10/0x10 [ 173.722414][ C0] ? __pfx_kthread+0x10/0x10 [ 173.727049][ C0] ret_from_fork+0x4b/0x80 [ 173.731483][ C0] ? __pfx_kthread+0x10/0x10 [ 173.736110][ C0] ret_from_fork_asm+0x1a/0x30 [ 173.740906][ C0] [ 173.743955][ C0] DEBUG: waiting rtnl_mutex for 3047 jiffies. [ 173.750201][ C0] task:syz-executor state:D stack:21728 pid:5213 tgid:5213 ppid:5209 flags:0x00004002 [ 173.760428][ C0] Call Trace: [ 173.763717][ C0] [ 173.766689][ C0] __schedule+0x1800/0x4a60 [ 173.771235][ C0] ? __pfx___schedule+0x10/0x10 [ 173.776129][ C0] ? __pfx_lock_release+0x10/0x10 [ 173.781174][ C0] ? __mutex_trylock_common+0x92/0x2e0 [ 173.786681][ C0] ? schedule+0x90/0x320 [ 173.790939][ C0] schedule+0x14b/0x320 [ 173.795143][ C0] schedule_preempt_disabled+0x13/0x30 [ 173.800617][ C0] __mutex_lock+0x6a4/0xd70 [ 173.805164][ C0] ? __mutex_lock+0x527/0xd70 [ 173.809863][ C0] ? unregister_netdevice_notifier_net+0x89/0x3a0 [ 173.816407][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 173.821465][ C0] ? get_rtnl_holder+0x144/0x190 [ 173.826446][ C0] unregister_netdevice_notifier_net+0x89/0x3a0 [ 173.832702][ C0] ? _raw_spin_unlock+0x28/0x50 [ 173.837590][ C0] ? mntput_no_expire+0x2da/0x850 [ 173.842631][ C0] ? __pfx_unregister_netdevice_notifier_net+0x10/0x10 [ 173.849527][ C0] ? __pfx_mntput_no_expire+0x10/0x10 [ 173.854953][ C0] ? _raw_spin_unlock+0x28/0x50 [ 173.859822][ C0] ? simple_release_fs+0x9c/0xd0 [ 173.864806][ C0] nsim_dev_hwstats_exit+0x81/0x290 [ 173.870070][ C0] ? kfree+0x149/0x360 [ 173.874186][ C0] nsim_dev_reload_destroy+0x2ad/0x490 [ 173.879668][ C0] ? __pfx_nsim_bus_remove+0x10/0x10 [ 173.884994][ C0] nsim_drv_remove+0x58/0x160 [ 173.889693][ C0] device_release_driver_internal+0x4a9/0x7c0 [ 173.895813][ C0] bus_remove_device+0x34f/0x420 [ 173.900770][ C0] device_del+0x57a/0x9b0 [ 173.905156][ C0] ? __pfx_device_del+0x10/0x10 [ 173.910039][ C0] device_unregister+0x20/0xc0 [ 173.914847][ C0] del_device_store+0x363/0x480 [ 173.919717][ C0] ? __pfx_del_device_store+0x10/0x10 [ 173.925130][ C0] ? sysfs_kf_write+0x182/0x2a0 [ 173.929993][ C0] ? bus_attr_store+0x4f/0xa0 [ 173.934712][ C0] ? __pfx_sysfs_kf_write+0x10/0x10 [ 173.939927][ C0] kernfs_fop_write_iter+0x3a1/0x500 [ 173.945257][ C0] vfs_write+0xa72/0xc90 [ 173.949540][ C0] ? __pfx_kernfs_fop_write_iter+0x10/0x10 [ 173.955398][ C0] ? __pfx_vfs_write+0x10/0x10 [ 173.960195][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 173.965437][ C0] ? blkcg_maybe_throttle_current+0x1ab/0xb80 [ 173.971532][ C0] ksys_write+0x1a0/0x2c0 [ 173.975913][ C0] ? __pfx_ksys_write+0x10/0x10 [ 173.980783][ C0] ? do_syscall_64+0x100/0x230 [ 173.985584][ C0] ? do_syscall_64+0xb6/0x230 [ 173.990271][ C0] do_syscall_64+0xf3/0x230 [ 173.994813][ C0] ? clear_bhb_loop+0x35/0x90 [ 173.999510][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 174.005442][ C0] RIP: 0033:0x7f49cd7746df [ 174.009869][ C0] RSP: 002b:00007ffce9b11af0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 [ 174.018320][ C0] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f49cd7746df [ 174.026326][ C0] RDX: 0000000000000001 RSI: 00007ffce9b11b40 RDI: 0000000000000005 [ 174.034340][ C0] RBP: 00007f49cd7e45b2 R08: 0000000000000000 R09: 00007ffce9b11947 [ 174.042336][ C0] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 [ 174.050361][ C0] R13: 00007ffce9b11b40 R14: 00007f49ce434620 R15: 0000000000000003 [ 174.058404][ C0] [ 174.061441][ C0] [ 174.061441][ C0] Showing all locks held in the system: [ 174.069198][ C0] 2 locks held by kworker/u8:2/35: [ 174.074343][ C0] #0: ffff888015089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 174.086083][ C0] #1: ffffc90000ab7d00 (connector_reaper_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 174.097119][ C0] 5 locks held by kworker/u8:3/53: [ 174.102233][ C0] #0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 174.113183][ C0] #1: ffffc90000bd7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 174.123788][ C0] #2: ffffffff8f5fddd0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 [ 174.133227][ C0] #3: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe9/0xa90 [ 174.143295][ C0] #4: ffffffff8e33ce38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 [ 174.154258][ C0] 3 locks held by kworker/u8:5/953: [ 174.159481][ C0] 5 locks held by kworker/u8:6/2799: [ 174.164808][ C0] 3 locks held by kworker/u8:8/2851: [ 174.170096][ C0] #0: ffff888029d05148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 174.181746][ C0] #1: ffffc90009a97d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 174.194697][ C0] #2: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 [ 174.204170][ C0] 2 locks held by dhcpcd/4767: [ 174.208936][ C0] #0: ffff88801bb47678 (nlk_cb_mutex-ROUTE){+.+.}-{3:3}, at: __netlink_dump_start+0x119/0x790 [ 174.219371][ C0] #1: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_dumpit+0x9e/0x210 [ 174.228239][ C0] 2 locks held by getty/4850: [ 174.232919][ C0] #0: ffff88802a85f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 174.242731][ C0] #1: ffffc900031232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 174.252900][ C0] 7 locks held by syz-executor/5213: [ 174.258213][ C0] #0: ffff88802a02a420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 [ 174.267187][ C0] #1: ffff88807f7a0888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 [ 174.277009][ C0] #2: ffff88802286e2d8 (kn->active#53){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 [ 174.287093][ C0] #3: ffffffff8ef0c528 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 [ 174.297429][ C0] #4: ffff8880515300e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xce/0x7c0 [ 174.308030][ C0] #5: ffff888051531250 (&devlink->lock_key){+.+.}-{3:3}, at: nsim_drv_remove+0x50/0x160 [ 174.317931][ C0] #6: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: unregister_netdevice_notifier_net+0x89/0x3a0 [ 174.328985][ C0] 4 locks held by syz-executor/5218: [ 174.334314][ C0] #0: ffff88802a02a420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 [ 174.343265][ C0] #1: ffff88807beca488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 [ 174.353263][ C0] #2: ffff88802286e2d8 (kn->active#53){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 [ 174.363365][ C0] #3: ffffffff8ef0c528 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 [ 174.373713][ C0] 4 locks held by syz-executor/5217: [ 174.379030][ C0] #0: ffff88802a02a420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 [ 174.387992][ C0] #1: ffff88804e279c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 [ 174.397821][ C0] #2: ffff88802286e2d8 (kn->active#53){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 [ 174.407923][ C0] #3: ffffffff8ef0c528 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 [ 174.418303][ C0] 3 locks held by kworker/1:4/5269: [ 174.423507][ C0] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 174.434571][ C0] #1: ffffc9000362fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 174.445620][ C0] #2: ffffffff8f60a948 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 [ 174.454681][ C0] 2 locks held by kworker/u8:9/5311: [ 174.459981][ C0] #0: ffff888015089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 [ 174.471728][ C0] #1: ffffc9000345fd00 ((reaper_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 [ 174.482525][ C0] 2 locks held by syz.0.46/5398: [ 174.487506][ C0] #0: ffffc90000007c00 (net/core/rtnetlink.c:83){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 [ 174.497682][ C0] #1: ffffffff8e337a60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 174.507595][ C0] 4 locks held by syz.1.47/5402: [ 174.512536][ C0] [ 174.514908][ C0] ============================================= [ 174.514908][ C0] [ 175.553853][ C0] DEBUG: waiting rtnl_mutex for 3027 jiffies. [ 175.559974][ C0] task:kworker/1:4 state:D stack:25104 pid:5269 tgid:5269 ppid:2 flags:0x00004000 [ 175.570229][ C0] Workqueue: events linkwatch_event [ 175.575484][ C0] Call Trace: [ 175.578767][ C0] [ 175.581711][ C0] __schedule+0x1800/0x4a60 [ 175.586288][ C0] ? __pfx___schedule+0x10/0x10 [ 175.591172][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 175.597199][ C0] ? __pfx_lock_release+0x10/0x10 [ 175.602263][ C0] ? kick_pool+0x1bd/0x620 [ 175.606729][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 175.611948][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 175.617190][ C0] ? schedule+0x90/0x320 [ 175.621452][ C0] schedule+0x14b/0x320 [ 175.625657][ C0] schedule_preempt_disabled+0x13/0x30 [ 175.631128][ C0] __mutex_lock+0x6a4/0xd70 [ 175.635676][ C0] ? __mutex_lock+0x527/0xd70 [ 175.640372][ C0] ? linkwatch_event+0xe/0x60 [ 175.645085][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 175.650137][ C0] ? get_rtnl_holder+0x144/0x190 [ 175.655110][ C0] ? process_scheduled_works+0x945/0x1830 [ 175.660844][ C0] linkwatch_event+0xe/0x60 [ 175.665388][ C0] process_scheduled_works+0xa2c/0x1830 [ 175.670984][ C0] ? __pfx_process_scheduled_works+0x10/0x10 [ 175.677014][ C0] ? assign_work+0x364/0x3d0 [ 175.681628][ C0] worker_thread+0x86d/0xd40 [ 175.686269][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 175.692182][ C0] ? __kthread_parkme+0x169/0x1d0 [ 175.697257][ C0] ? __pfx_worker_thread+0x10/0x10 [ 175.702385][ C0] kthread+0x2f0/0x390 [ 175.706492][ C0] ? __pfx_worker_thread+0x10/0x10 [ 175.711624][ C0] ? __pfx_kthread+0x10/0x10 [ 175.716260][ C0] ret_from_fork+0x4b/0x80 [ 175.720692][ C0] ? __pfx_kthread+0x10/0x10 [ 175.725315][ C0] ret_from_fork_asm+0x1a/0x30 [ 175.730111][ C0] [ 175.733134][ C0] DEBUG: waiting rtnl_mutex for 2521 jiffies. [ 175.739314][ C0] task:dhcpcd state:D stack:20672 pid:4767 tgid:4767 ppid:4766 flags:0x00000002 [ 175.749529][ C0] Call Trace: [ 175.752814][ C0] [ 175.755784][ C0] __schedule+0x1800/0x4a60 [ 175.760330][ C0] ? __pfx___schedule+0x10/0x10 [ 175.765320][ C0] ? __pfx_lock_release+0x10/0x10 [ 175.770371][ C0] ? __mutex_trylock_common+0x92/0x2e0 [ 175.775883][ C0] ? schedule+0x90/0x320 [ 175.780223][ C0] schedule+0x14b/0x320 [ 175.784438][ C0] schedule_preempt_disabled+0x13/0x30 [ 175.789917][ C0] __mutex_lock+0x6a4/0xd70 [ 175.794483][ C0] ? __mutex_lock+0x527/0xd70 [ 175.799192][ C0] ? rtnl_dumpit+0x9e/0x210 [ 175.803719][ C0] ? __pfx___mutex_lock+0x10/0x10 [ 175.808884][ C0] ? __alloc_skb+0x28f/0x440 [ 175.813492][ C0] ? get_rtnl_holder+0x144/0x190 [ 175.818473][ C0] ? __pfx_rtnl_dump_ifinfo+0x10/0x10 [ 175.823897][ C0] rtnl_dumpit+0x9e/0x210 [ 175.828260][ C0] netlink_dump+0x647/0xd80 [ 175.832784][ C0] ? __pfx_netlink_dump+0x10/0x10 [ 175.837878][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 175.842929][ C0] __netlink_dump_start+0x5a2/0x790 [ 175.848182][ C0] ? __pfx_rtnl_dump_ifinfo+0x10/0x10 [ 175.853571][ C0] rtnetlink_rcv_msg+0xb42/0xd00 [ 175.858567][ C0] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 175.864071][ C0] ? __pfx_rtnl_dumpit+0x10/0x10 [ 175.869026][ C0] ? __pfx_rtnl_dump_ifinfo+0x10/0x10 [ 175.874453][ C0] netlink_rcv_skb+0x1e3/0x430 [ 175.879228][ C0] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 175.884731][ C0] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 175.890049][ C0] ? netlink_deliver_tap+0x2e/0x1b0 [ 175.895286][ C0] netlink_unicast+0x7f6/0x990 [ 175.900081][ C0] ? __pfx_netlink_unicast+0x10/0x10 [ 175.905413][ C0] ? __virt_addr_valid+0x183/0x530 [ 175.910543][ C0] ? __check_object_size+0x49c/0x900 [ 175.915866][ C0] ? bpf_lsm_netlink_send+0x9/0x10 [ 175.920998][ C0] netlink_sendmsg+0x8e4/0xcb0 [ 175.925826][ C0] ? __pfx_netlink_sendmsg+0x10/0x10 [ 175.931131][ C0] ? aa_sock_msg_perm+0x91/0x160 [ 175.936109][ C0] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 175.941402][ C0] ? security_socket_sendmsg+0x87/0xb0 [ 175.946908][ C0] ? __pfx_netlink_sendmsg+0x10/0x10 [ 175.952210][ C0] __sock_sendmsg+0x221/0x270 [ 175.956941][ C0] __sys_sendto+0x3a4/0x4f0 [ 175.961462][ C0] ? __pfx___sys_sendto+0x10/0x10 [ 175.966559][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 175.972559][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 175.978934][ C0] __x64_sys_sendto+0xde/0x100 [ 175.983717][ C0] do_syscall_64+0xf3/0x230 [ 175.988260][ C0] ? clear_bhb_loop+0x35/0x90 [ 175.992958][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 175.998914][ C0] RIP: 0033:0x7f586e901ad7 [ 176.003348][ C0] RSP: 002b:00007ffc3a45a318 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 176.011809][ C0] RAX: ffffffffffffffda RBX: 00007ffc3a45b440 RCX: 00007f586e901ad7 [ 176.019818][ C0] RDX: 0000000000000014 RSI: 00007ffc3a45b360 RDI: 0000000000000018 [ 176.027835][ C0] RBP: 00007ffc3a45b3d0 R08: 00007ffc3a45b344 R09: 000000000000000c [ 176.035844][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000012 [ 176.043854][ C0] R13: 00007ffc3a45b344 R14: 00007ffc3a45b360 R15: 0000000000000105 [ 176.051863][ C0] [ 176.054925][ C0] DEBUG: holding rtnl_mutex for 3288 jiffies. [ 176.061000][ C0] task:kworker/u8:3 state:R running task stack:21808 pid:53 tgid:53 ppid:2 flags:0x00004000 [ 176.072858][ C0] Workqueue: netns cleanup_net [ 176.077707][ C0] Call Trace: [ 176.081010][ C0] [ 176.083992][ C0] __schedule+0x1800/0x4a60 [ 176.088552][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 176.094583][ C0] ? finish_task_switch+0x1e5/0x870 [ 176.099801][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 176.106185][ C0] ? __pfx___schedule+0x10/0x10 [ 176.111059][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 176.116327][ C0] ? mark_lock+0x9a/0x360 [ 176.120698][ C0] preempt_schedule_irq+0xfb/0x1c0 [ 176.125876][ C0] ? __pfx_preempt_schedule_irq+0x10/0x10 [ 176.131636][ C0] irqentry_exit+0x5e/0x90 [ 176.136099][ C0] asm_sysvec_reschedule_ipi+0x1a/0x20 [ 176.141575][ C0] RIP: 0010:synchronize_rcu+0x0/0x360 [ 176.146997][ C0] Code: e1 07 80 c1 03 38 c1 0f 8c 97 fe ff ff 4c 89 f7 e8 d5 1f 81 00 e9 8a fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 [ 176.166755][ C0] RSP: 7620:0000000000000a06 EFLAGS: 1ffff9200017aec0 [ 176.173557][ C0] ================================================================== [ 176.181616][ C0] BUG: KASAN: stack-out-of-bounds in __show_regs+0xa6/0x610 [ 176.188897][ C0] Read of size 8 at addr ffffc90000bd7578 by task syz.1.49/5407 [ 176.196512][ C0] [ 176.198834][ C0] CPU: 0 UID: 0 PID: 5407 Comm: syz.1.49 Not tainted 6.10.0-next-20240719-syzkaller #0 [ 176.208453][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 176.218498][ C0] Call Trace: [ 176.221762][ C0] [ 176.224595][ C0] dump_stack_lvl+0x241/0x360 [ 176.229263][ C0] ? __pfx_dump_stack_lvl+0x10/0x10 [ 176.234443][ C0] ? __pfx__printk+0x10/0x10 [ 176.239023][ C0] ? _printk+0xd5/0x120 [ 176.243168][ C0] print_report+0x169/0x550 [ 176.247665][ C0] ? __virt_addr_valid+0xbd/0x530 [ 176.252674][ C0] ? __show_regs+0xa6/0x610 [ 176.257161][ C0] kasan_report+0x143/0x180 [ 176.261647][ C0] ? show_opcodes+0x148/0x170 [ 176.266313][ C0] ? __show_regs+0xa6/0x610 [ 176.270807][ C0] __show_regs+0xa6/0x610 [ 176.275129][ C0] ? asm_sysvec_reschedule_ipi+0x1a/0x20 [ 176.280748][ C0] ? wq_watchdog_touch+0xef/0x180 [ 176.285758][ C0] ? asm_sysvec_reschedule_ipi+0x1a/0x20 [ 176.291376][ C0] show_trace_log_lvl+0x3d4/0x520 [ 176.296394][ C0] ? __pfx_synchronize_rcu+0x10/0x10 [ 176.301663][ C0] sched_show_task+0x506/0x6d0 [ 176.306414][ C0] ? report_rtnl_holders+0x2a5/0x400 [ 176.311705][ C0] ? __pfx__printk+0x10/0x10 [ 176.316302][ C0] ? __pfx_sched_show_task+0x10/0x10 [ 176.321586][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 176.327478][ C0] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 176.333803][ C0] report_rtnl_holders+0x327/0x400 [ 176.338915][ C0] call_timer_fn+0x18e/0x650 [ 176.343503][ C0] ? __pfx_report_rtnl_holders+0x10/0x10 [ 176.349148][ C0] ? call_timer_fn+0xc0/0x650 [ 176.353823][ C0] ? __pfx_report_rtnl_holders+0x10/0x10 [ 176.359464][ C0] ? __pfx_call_timer_fn+0x10/0x10 [ 176.364657][ C0] ? __pfx_report_rtnl_holders+0x10/0x10 [ 176.370325][ C0] ? __pfx_report_rtnl_holders+0x10/0x10 [ 176.375989][ C0] ? __pfx_report_rtnl_holders+0x10/0x10 [ 176.381616][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 176.386806][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 176.391997][ C0] ? __pfx_report_rtnl_holders+0x10/0x10 [ 176.397626][ C0] __run_timer_base+0x66a/0x8e0 [ 176.402488][ C0] ? __pfx___run_timer_base+0x10/0x10 [ 176.407868][ C0] run_timer_softirq+0xb7/0x170 [ 176.412705][ C0] handle_softirqs+0x2c4/0x970 [ 176.417465][ C0] ? __irq_exit_rcu+0xf4/0x1c0 [ 176.422218][ C0] ? __pfx_handle_softirqs+0x10/0x10 [ 176.427492][ C0] ? irqtime_account_irq+0xd4/0x1e0 [ 176.432680][ C0] __irq_exit_rcu+0xf4/0x1c0 [ 176.437259][ C0] ? __pfx___irq_exit_rcu+0x10/0x10 [ 176.442504][ C0] irq_exit_rcu+0x9/0x30 [ 176.446752][ C0] sysvec_apic_timer_interrupt+0xa6/0xc0 [ 176.452391][ C0] [ 176.455310][ C0] [ 176.458225][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 176.464195][ C0] RIP: 0010:finish_task_switch+0x1ea/0x870 [ 176.469987][ C0] Code: c9 50 e8 39 b8 0b 00 48 83 c4 08 4c 89 f7 e8 dd 38 00 00 0f 1f 44 00 00 4c 89 f7 e8 60 a0 3a 0a e8 eb 93 37 00 fb 48 8b 5d c0 <48> 8d bb f8 15 00 00 48 89 f8 48 c1 e8 03 49 be 00 00 00 00 00 fc [ 176.489579][ C0] RSP: 0018:ffffc900033ff1e8 EFLAGS: 00000282 [ 176.495634][ C0] RAX: 1f1d9f7a58a2c000 RBX: ffff888024cb3c00 RCX: ffffffff94808903 [ 176.503608][ C0] RDX: dffffc0000000000 RSI: ffffffff8bcad540 RDI: ffffffff8c20aee0 [ 176.511590][ C0] RBP: ffffc900033ff230 R08: ffffffff8fafdcaf R09: 1ffffffff1f5fb95 [ 176.519571][ C0] R10: dffffc0000000000 R11: fffffbfff1f5fb96 R12: 1ffff11017287ef3 [ 176.527725][ C0] R13: dffffc0000000000 R14: ffff8880b943ea00 R15: ffff8880b943f798 [ 176.535722][ C0] ? finish_task_switch+0x1e5/0x870 [ 176.540921][ C0] __schedule+0x1808/0x4a60 [ 176.545431][ C0] ? __pfx___schedule+0x10/0x10 [ 176.550285][ C0] ? __pfx_lock_release+0x10/0x10 [ 176.555308][ C0] ? schedule+0x90/0x320 [ 176.559538][ C0] schedule+0x14b/0x320 [ 176.563683][ C0] schedule_timeout+0xb0/0x310 [ 176.568450][ C0] ? __pfx_schedule_timeout+0x10/0x10 [ 176.573812][ C0] ? do_raw_spin_unlock+0x13c/0x8b0 [ 176.579002][ C0] ? prepare_to_wait_exclusive+0x81/0x220 [ 176.584720][ C0] unix_wait_for_peer+0x250/0x340 [ 176.589739][ C0] ? __pfx_unix_wait_for_peer+0x10/0x10 [ 176.595279][ C0] ? __pfx_autoremove_wake_function+0x10/0x10 [ 176.601336][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 176.606707][ C0] ? bpf_lsm_unix_may_send+0x9/0x10 [ 176.611896][ C0] unix_dgram_sendmsg+0x127f/0x1f80 [ 176.617077][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 176.622272][ C0] ? __pfx_unix_dgram_sendmsg+0x10/0x10 [ 176.627803][ C0] ? iovec_from_user+0x61/0x240 [ 176.632646][ C0] ? aa_sock_msg_perm+0x91/0x160 [ 176.637579][ C0] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 176.642849][ C0] ? security_socket_sendmsg+0x87/0xb0 [ 176.648301][ C0] ? __pfx_unix_dgram_sendmsg+0x10/0x10 [ 176.653833][ C0] __sock_sendmsg+0x221/0x270 [ 176.658589][ C0] ____sys_sendmsg+0x525/0x7d0 [ 176.663344][ C0] ? __pfx_____sys_sendmsg+0x10/0x10 [ 176.668616][ C0] ? __might_fault+0xaa/0x120 [ 176.673280][ C0] __sys_sendmmsg+0x3b2/0x740 [ 176.677948][ C0] ? __pfx___sys_sendmmsg+0x10/0x10 [ 176.683145][ C0] ? futex_hash+0x1e/0x1f0 [ 176.687550][ C0] ? futex_wait+0x285/0x360 [ 176.692038][ C0] ? __pfx_futex_wait+0x10/0x10 [ 176.696873][ C0] ? unix_dgram_connect+0xaec/0xd80 [ 176.702053][ C0] ? __pfx_aa_sk_perm+0x10/0x10 [ 176.706890][ C0] ? do_futex+0x33b/0x560 [ 176.711211][ C0] ? __sys_connect+0x16b/0x310 [ 176.715965][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 176.721936][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 176.728256][ C0] ? do_syscall_64+0x100/0x230 [ 176.733007][ C0] __x64_sys_sendmmsg+0xa0/0xb0 [ 176.737844][ C0] do_syscall_64+0xf3/0x230 [ 176.742336][ C0] ? clear_bhb_loop+0x35/0x90 [ 176.747002][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 176.752882][ C0] RIP: 0033:0x7fd8a3775b59 [ 176.757285][ C0] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 176.776877][ C0] RSP: 002b:00007fd8a45b6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 176.785276][ C0] RAX: ffffffffffffffda RBX: 00007fd8a3905f60 RCX: 00007fd8a3775b59 [ 176.793231][ C0] RDX: 0000000000000651 RSI: 0000000020000000 RDI: 0000000000000004 [ 176.801185][ C0] RBP: 00007fd8a37e4e5d R08: 0000000000000000 R09: 0000000000000000 [ 176.809227][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 176.817275][ C0] R13: 000000000000000b R14: 00007fd8a3905f60 R15: 00007ffd8895cd68 [ 176.825242][ C0] [ 176.828251][ C0] [ 176.830569][ C0] The buggy address belongs to the virtual mapping at [ 176.830569][ C0] [ffffc90000bd0000, ffffc90000bd9000) created by: [ 176.830569][ C0] copy_process+0x5d1/0x3d90 [ 176.848180][ C0] [ 176.850487][ C0] The buggy address belongs to the physical page: [ 176.856891][ C0] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x15b96 [ 176.865640][ C0] flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) [ 176.872740][ C0] raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000 [ 176.881310][ C0] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 176.889869][ C0] page dumped because: kasan: bad access detected [ 176.896265][ C0] page_owner tracks the page as allocated [ 176.901955][ C0] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2dc2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN|__GFP_ZERO), pid 2, tgid 2 (kthreadd), ts 3904548784, free_ts 0 [ 176.919300][ C0] post_alloc_hook+0x1f3/0x230 [ 176.924063][ C0] get_page_from_freelist+0x2ccb/0x2d80 [ 176.929613][ C0] __alloc_pages_noprof+0x256/0x6c0 [ 176.934795][ C0] alloc_pages_mpol_noprof+0x3e8/0x680 [ 176.940324][ C0] __vmalloc_node_range_noprof+0x971/0x1460 [ 176.946200][ C0] dup_task_struct+0x444/0x8c0 [ 176.950948][ C0] copy_process+0x5d1/0x3d90 [ 176.955653][ C0] kernel_clone+0x226/0x8f0 [ 176.960141][ C0] kernel_thread+0x1bc/0x240 [ 176.964715][ C0] kthreadd+0x60d/0x810 [ 176.968858][ C0] ret_from_fork+0x4b/0x80 [ 176.973260][ C0] ret_from_fork_asm+0x1a/0x30 [ 176.978010][ C0] page_owner free stack trace missing [ 176.983366][ C0] [ 176.985669][ C0] Memory state around the buggy address: [ 176.991278][ C0] ffffc90000bd7400: f2 f2 00 00 00 00 00 00 f2 f2 f2 f2 00 00 00 00 [ 176.999321][ C0] ffffc90000bd7480: 00 f3 f3 f3 f3 f3 f3 f3 00 00 00 00 00 00 00 00 [ 177.007365][ C0] >ffffc90000bd7500: 00 00 00 00 f1 f1 f1 f1 00 f2 f2 f2 00 f3 f3 f3 [ 177.015404][ C0] ^ [ 177.023362][ C0] ffffc90000bd7580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 177.031409][ C0] ffffc90000bd7600: f1 f1 f1 f1 00 f2 f2 f2 00 f3 f3 f3 00 00 00 00 [ 177.039450][ C0] ================================================================== [ 177.047548][ C0] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 177.054775][ C0] CPU: 0 UID: 0 PID: 5407 Comm: syz.1.49 Not tainted 6.10.0-next-20240719-syzkaller #0 [ 177.064424][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 177.074499][ C0] Call Trace: [ 177.077800][ C0] [ 177.080653][ C0] dump_stack_lvl+0x241/0x360 [ 177.085344][ C0] ? __pfx_dump_stack_lvl+0x10/0x10 [ 177.090553][ C0] ? __pfx__printk+0x10/0x10 [ 177.095160][ C0] ? vscnprintf+0x5d/0x90 [ 177.099500][ C0] panic+0x349/0x870 [ 177.103422][ C0] ? check_panic_on_warn+0x21/0xb0 [ 177.108545][ C0] ? __pfx_panic+0x10/0x10 [ 177.112977][ C0] ? mark_lock+0x9a/0x360 [ 177.117322][ C0] ? _raw_spin_unlock_irqrestore+0xd8/0x140 [ 177.123234][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 177.129147][ C0] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 177.135492][ C0] ? print_report+0x502/0x550 [ 177.140183][ C0] check_panic_on_warn+0x86/0xb0 [ 177.145145][ C0] ? __show_regs+0xa6/0x610 [ 177.149658][ C0] end_report+0x77/0x160 [ 177.153907][ C0] kasan_report+0x154/0x180 [ 177.158413][ C0] ? show_opcodes+0x148/0x170 [ 177.163127][ C0] ? __show_regs+0xa6/0x610 [ 177.167645][ C0] __show_regs+0xa6/0x610 [ 177.171995][ C0] ? asm_sysvec_reschedule_ipi+0x1a/0x20 [ 177.177652][ C0] ? wq_watchdog_touch+0xef/0x180 [ 177.182700][ C0] ? asm_sysvec_reschedule_ipi+0x1a/0x20 [ 177.188354][ C0] show_trace_log_lvl+0x3d4/0x520 [ 177.193410][ C0] ? __pfx_synchronize_rcu+0x10/0x10 [ 177.198708][ C0] sched_show_task+0x506/0x6d0 [ 177.203485][ C0] ? report_rtnl_holders+0x2a5/0x400 [ 177.208791][ C0] ? __pfx__printk+0x10/0x10 [ 177.213408][ C0] ? __pfx_sched_show_task+0x10/0x10 [ 177.218716][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 177.224630][ C0] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 177.230979][ C0] report_rtnl_holders+0x327/0x400 [ 177.236127][ C0] call_timer_fn+0x18e/0x650 [ 177.240738][ C0] ? __pfx_report_rtnl_holders+0x10/0x10 [ 177.246385][ C0] ? call_timer_fn+0xc0/0x650 [ 177.251079][ C0] ? __pfx_report_rtnl_holders+0x10/0x10 2024/07/22 07:06:47 executed programs: 42 [ 177.256729][ C0] ? __pfx_call_timer_fn+0x10/0x10 [ 177.261865][ C0] ? __pfx_report_rtnl_holders+0x10/0x10 [ 177.267506][ C0] ? __pfx_report_rtnl_holders+0x10/0x10 [ 177.273161][ C0] ? __pfx_report_rtnl_holders+0x10/0x10 [ 177.278812][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 177.284026][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 177.289248][ C0] ? __pfx_report_rtnl_holders+0x10/0x10 [ 177.294902][ C0] __run_timer_base+0x66a/0x8e0 [ 177.299782][ C0] ? __pfx___run_timer_base+0x10/0x10 [ 177.305219][ C0] run_timer_softirq+0xb7/0x170 [ 177.310088][ C0] handle_softirqs+0x2c4/0x970 [ 177.314866][ C0] ? __irq_exit_rcu+0xf4/0x1c0 [ 177.319643][ C0] ? __pfx_handle_softirqs+0x10/0x10 [ 177.324953][ C0] ? irqtime_account_irq+0xd4/0x1e0 [ 177.330197][ C0] __irq_exit_rcu+0xf4/0x1c0 [ 177.334833][ C0] ? __pfx___irq_exit_rcu+0x10/0x10 [ 177.340053][ C0] irq_exit_rcu+0x9/0x30 [ 177.344325][ C0] sysvec_apic_timer_interrupt+0xa6/0xc0 [ 177.349975][ C0] [ 177.352919][ C0] [ 177.355854][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 177.361850][ C0] RIP: 0010:finish_task_switch+0x1ea/0x870 [ 177.367705][ C0] Code: c9 50 e8 39 b8 0b 00 48 83 c4 08 4c 89 f7 e8 dd 38 00 00 0f 1f 44 00 00 4c 89 f7 e8 60 a0 3a 0a e8 eb 93 37 00 fb 48 8b 5d c0 <48> 8d bb f8 15 00 00 48 89 f8 48 c1 e8 03 49 be 00 00 00 00 00 fc [ 177.387327][ C0] RSP: 0018:ffffc900033ff1e8 EFLAGS: 00000282 [ 177.393406][ C0] RAX: 1f1d9f7a58a2c000 RBX: ffff888024cb3c00 RCX: ffffffff94808903 [ 177.401382][ C0] RDX: dffffc0000000000 RSI: ffffffff8bcad540 RDI: ffffffff8c20aee0 [ 177.409368][ C0] RBP: ffffc900033ff230 R08: ffffffff8fafdcaf R09: 1ffffffff1f5fb95 [ 177.417345][ C0] R10: dffffc0000000000 R11: fffffbfff1f5fb96 R12: 1ffff11017287ef3 [ 177.425326][ C0] R13: dffffc0000000000 R14: ffff8880b943ea00 R15: ffff8880b943f798 [ 177.433314][ C0] ? finish_task_switch+0x1e5/0x870 [ 177.438525][ C0] __schedule+0x1808/0x4a60 [ 177.443052][ C0] ? __pfx___schedule+0x10/0x10 [ 177.447925][ C0] ? __pfx_lock_release+0x10/0x10 [ 177.452979][ C0] ? schedule+0x90/0x320 [ 177.457226][ C0] schedule+0x14b/0x320 [ 177.461389][ C0] schedule_timeout+0xb0/0x310 [ 177.466171][ C0] ? __pfx_schedule_timeout+0x10/0x10 [ 177.471558][ C0] ? do_raw_spin_unlock+0x13c/0x8b0 [ 177.476764][ C0] ? prepare_to_wait_exclusive+0x81/0x220 [ 177.482495][ C0] unix_wait_for_peer+0x250/0x340 [ 177.487541][ C0] ? __pfx_unix_wait_for_peer+0x10/0x10 [ 177.493103][ C0] ? __pfx_autoremove_wake_function+0x10/0x10 [ 177.499180][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 177.504561][ C0] ? bpf_lsm_unix_may_send+0x9/0x10 [ 177.509775][ C0] unix_dgram_sendmsg+0x127f/0x1f80 [ 177.514980][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 177.520198][ C0] ? __pfx_unix_dgram_sendmsg+0x10/0x10 [ 177.525747][ C0] ? iovec_from_user+0x61/0x240 [ 177.530707][ C0] ? aa_sock_msg_perm+0x91/0x160 [ 177.535667][ C0] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 177.540970][ C0] ? security_socket_sendmsg+0x87/0xb0 [ 177.546459][ C0] ? __pfx_unix_dgram_sendmsg+0x10/0x10 [ 177.552133][ C0] __sock_sendmsg+0x221/0x270 [ 177.556828][ C0] ____sys_sendmsg+0x525/0x7d0 [ 177.561617][ C0] ? __pfx_____sys_sendmsg+0x10/0x10 [ 177.566918][ C0] ? __might_fault+0xaa/0x120 [ 177.571604][ C0] __sys_sendmmsg+0x3b2/0x740 [ 177.576298][ C0] ? __pfx___sys_sendmmsg+0x10/0x10 [ 177.581517][ C0] ? futex_hash+0x1e/0x1f0 [ 177.585944][ C0] ? futex_wait+0x285/0x360 [ 177.590474][ C0] ? __pfx_futex_wait+0x10/0x10 [ 177.595347][ C0] ? unix_dgram_connect+0xaec/0xd80 [ 177.600561][ C0] ? __pfx_aa_sk_perm+0x10/0x10 [ 177.605425][ C0] ? do_futex+0x33b/0x560 [ 177.609773][ C0] ? __sys_connect+0x16b/0x310 [ 177.614551][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 177.620558][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 177.626913][ C0] ? do_syscall_64+0x100/0x230 [ 177.631689][ C0] __x64_sys_sendmmsg+0xa0/0xb0 [ 177.636560][ C0] do_syscall_64+0xf3/0x230 [ 177.641080][ C0] ? clear_bhb_loop+0x35/0x90 [ 177.645776][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 177.651689][ C0] RIP: 0033:0x7fd8a3775b59 [ 177.656108][ C0] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 177.675722][ C0] RSP: 002b:00007fd8a45b6048 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 177.684151][ C0] RAX: ffffffffffffffda RBX: 00007fd8a3905f60 RCX: 00007fd8a3775b59 [ 177.692133][ C0] RDX: 0000000000000651 RSI: 0000000020000000 RDI: 0000000000000004 [ 177.700116][ C0] RBP: 00007fd8a37e4e5d R08: 0000000000000000 R09: 0000000000000000 [ 177.708121][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 177.716107][ C0] R13: 000000000000000b R14: 00007fd8a3905f60 R15: 00007ffd8895cd68 [ 177.724094][ C0] [ 177.727440][ C0] Kernel Offset: disabled [ 177.731780][ C0] Rebooting in 86400 seconds..