[ 464.959794][ T4045] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 465.018520][ T4133] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 465.050380][ T4105] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 465.073864][ T4120] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. [ 465.112672][ T4147] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 465.147288][ T4149] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. [ 465.192963][ T4168] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 465.215948][ T4167] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. [ 465.271476][ T4194] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. [ 465.297261][ T4092] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. [ 469.971850][ T5070] __nla_validate_parse: 175 callbacks suppressed [ 469.971856][ T5070] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 469.992231][ T5159] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 470.003099][ T5142] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. [ 470.092241][ T5180] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. [ 470.122137][ T5076] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. [ 470.149196][ T5181] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. [ 470.198400][ T5193] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. [ 470.236496][ T5192] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. [ 470.274587][ T5209] netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. [ 470.299556][ T5125] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. [ 471.700998][ T26] ------------[ cut here ]------------ [ 471.706956][ T26] lockdep bfs error:-1 [ 471.711041][ T26] WARNING: CPU: 0 PID: 26 at kernel/locking/lockdep.c:1733 print_bfs_bug+0x138/0x1d0 [ 471.720465][ T26] Kernel panic - not syncing: panic_on_warn set ... [ 471.727040][ T26] CPU: 0 PID: 26 Comm: kworker/u4:2 Not tainted 5.7.0-rc2-syzkaller #0 [ 471.735237][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 471.745315][ T26] Workqueue: netns cleanup_net [ 471.750045][ T26] Call Trace: [ 471.753332][ T26] dump_stack+0x128/0x182 [ 471.757756][ T26] ? print_bfs_bug+0x138/0x1d0 [ 471.762510][ T26] panic+0x22a/0x4e3 [ 471.766400][ T26] ? add_taint.cold.7+0x11/0x11 [ 471.771393][ T26] ? __probe_kernel_read+0x175/0x1c0 [ 471.776672][ T26] __warn.cold.10+0x25/0x26 [ 471.781174][ T26] ? print_bfs_bug+0x138/0x1d0 [ 471.785902][ T26] report_bug+0x1ad/0x270 [ 471.790354][ T26] ? print_bfs_bug+0x138/0x1d0 [ 471.795107][ T26] do_error_trap+0x123/0x210 [ 471.799703][ T26] do_invalid_op+0x31/0x40 [ 471.804359][ T26] ? print_bfs_bug+0x138/0x1d0 [ 471.809158][ T26] invalid_op+0x23/0x30 [ 471.813298][ T26] RIP: 0010:print_bfs_bug+0x138/0x1d0 [ 471.818646][ T26] Code: 07 00 74 2d 48 c7 c7 00 00 8a 8b e8 c2 6a 01 00 66 90 45 85 e4 75 05 5b 5d 41 5c c3 89 ee 48 c7 c7 80 d5 8a 87 e8 54 30 ed ff <0f> 0b 5b 5d 41 5c c3 0f 0b e8 da 6a f8 01 85 c0 74 d6 48 c7 c7 10 [ 471.838434][ T26] RSP: 0018:ffffc90000e276a0 EFLAGS: 00010082 [ 471.844468][ T26] RAX: 0000000000000000 RBX: ffff8880a943c040 RCX: 0000000000000000 [ 471.852404][ T26] RDX: 0000000000000002 RSI: 0000000000000007 RDI: ffffffff8b8e41a0 [ 471.860341][ T26] RBP: 00000000ffffffff R08: ffffed1015d045f1 R09: ffffed1015d045f1 [ 471.868294][ T26] R10: ffff8880ae822f83 R11: ffffed1015d045f0 R12: 0000000000000001 [ 471.876239][ T26] R13: ffff8880a943c9d0 R14: ffff8880a943c9a8 R15: 0000000000000893 [ 471.884189][ T26] check_path+0x36/0x40 [ 471.888310][ T26] check_noncircular+0x171/0x400 [ 471.893232][ T26] ? print_circular_bug.isra.41+0x3a0/0x3a0 [ 471.899391][ T26] ? arch_stack_walk+0x77/0xd0 [ 471.904144][ T26] ? print_circular_bug.isra.41+0x3a0/0x3a0 [ 471.910021][ T26] __lock_acquire+0x24be/0x3690 [ 471.914839][ T26] ? mark_held_locks+0x110/0x110 [ 471.919738][ T26] ? mark_held_locks+0x110/0x110 [ 471.924639][ T26] ? find_held_lock+0x33/0x1c0 [ 471.929365][ T26] lock_acquire+0x1e3/0x970 [ 471.933901][ T26] ? nsim_destroy+0x24/0x60 [ 471.938367][ T26] ? lock_release+0x7f0/0x7f0 [ 471.943018][ T26] __mutex_lock+0x153/0x13e0 [ 471.947576][ T26] ? nsim_destroy+0x24/0x60 [ 471.952076][ T26] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 471.957584][ T26] ? nsim_destroy+0x24/0x60 [ 471.962187][ T26] ? rcu_read_lock_any_held.part.10+0x50/0x50 [ 471.968247][ T26] ? _raw_spin_lock_irqsave+0x9d/0xc0 [ 471.973607][ T26] ? mutex_lock_io_nested+0x12e0/0x12e0 [ 471.979259][ T26] ? _raw_spin_unlock_irqrestore+0x64/0xd0 [ 471.985171][ T26] ? mark_lock+0xbb/0x620 [ 471.989637][ T26] ? mark_held_locks+0xb0/0x110 [ 471.994472][ T26] ? queue_delayed_work_on+0xb8/0x190 [ 471.999826][ T26] ? nsim_destroy+0x24/0x60 [ 472.004298][ T26] nsim_destroy+0x24/0x60 [ 472.008657][ T26] __nsim_dev_port_del+0x126/0x1d0 [ 472.013790][ T26] nsim_dev_port_del_all+0x73/0xc0 [ 472.018900][ T26] nsim_dev_reload_destroy+0x54/0xe0 [ 472.024314][ T26] nsim_dev_reload_down+0x50/0xb0 [ 472.029355][ T26] devlink_reload+0xa3/0x330 [ 472.033927][ T26] devlink_pernet_pre_exit+0xdb/0x150 [ 472.039281][ T26] cleanup_net+0x3d4/0x910 [ 472.043684][ T26] ? unregister_pernet_device+0x70/0x70 [ 472.049286][ T26] ? rcu_read_lock_any_held.part.10+0x50/0x50 [ 472.055323][ T26] ? _raw_spin_unlock_irq+0x1f/0x80 [ 472.060489][ T26] process_one_work+0x908/0x15d0 [ 472.065407][ T26] ? lock_acquire+0x1e3/0x970 [ 472.070047][ T26] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 472.075402][ T26] ? do_raw_spin_lock+0x12a/0x2e0 [ 472.080412][ T26] worker_thread+0x82/0xb50 [ 472.084905][ T26] ? __kthread_parkme+0xaf/0x1b0 [ 472.090035][ T26] ? process_one_work+0x15d0/0x15d0 [ 472.095202][ T26] kthread+0x340/0x410 [ 472.099248][ T26] ? kthread_mod_delayed_work+0x180/0x180 [ 472.104946][ T26] ret_from_fork+0x24/0x30 [ 472.110720][ T26] Kernel Offset: disabled [ 472.115050][ T26] Rebooting in 86400 seconds..