[ 27.284296][ T12] ==================================================================
[ 27.284621][ T12] BUG: KASAN: null-ptr-deref in try_to_grab_pending+0x81/0x6c0
[ 27.284935][ T12] Write of size 8 at addr 0000000000000000 by task kworker/u16:0/12
[ 27.285215][ T12]
[ 27.285309][ T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 27.285314][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 27.285317][ T12] Workqueue: netns cleanup_net
[ 27.285328][ T12] Call Trace:
[ 27.285330][ T12]
[ 27.285333][ T12] dump_stack_lvl+0x82/0xc0
[ 27.285340][ T12] ? try_to_grab_pending+0x81/0x6c0
[ 27.285345][ T12] kasan_report+0xca/0x100
[ 27.285352][ T12] ? try_to_grab_pending+0x81/0x6c0
[ 27.285361][ T12] kasan_check_range+0x39/0x1b0
[ 27.285367][ T12] try_to_grab_pending+0x81/0x6c0
[ 27.285374][ T12] __cancel_work+0x7c/0x260
[ 27.285379][ T12] ? enable_delayed_work+0x10/0x10
[ 27.285387][ T12] ? qdisc_destroy+0x50/0x50
[ 27.285393][ T12] __cancel_work_sync+0x18/0xc0
[ 27.285398][ T12] __dev_close_many+0x1ce/0x810
[ 27.285405][ T12] ? netdev_notify_peers+0x20/0x20
[ 27.285410][ T12] ? netif_close_many+0x201/0x650
[ 27.285415][ T12] netif_close_many+0x201/0x650
[ 27.285418][ T12] ? __mutex_handoff+0x2b0/0x2b0
[ 27.285425][ T12] ? __dev_close_many+0x810/0x810
[ 27.285429][ T12] ? netif_close_many_and_unlock+0x21/0x2a0
[ 27.285438][ T12] unregister_netdevice_many_notify+0x305/0x1b30
[ 27.285444][ T12] ? find_held_lock+0x2b/0x80
[ 27.285450][ T12] ? rtnl_is_locked+0x15/0x20
[ 27.285454][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 27.285457][ T12] ? rtnl_is_locked+0x15/0x20
[ 27.285459][ T12] ? unregister_netdevice_queue+0x6f/0x410
[ 27.285462][ T12] ? lockdep_hardirqs_on+0x7c/0x110
[ 27.285467][ T12] ? unregister_netdevice_many+0x20/0x20
[ 27.285473][ T12] default_device_exit_batch+0x235/0x2d0
[ 27.285477][ T12] ? unregister_netdev+0x60/0x60
[ 27.285483][ T12] ops_undo_list+0x2bf/0x890
[ 27.285488][ T12] ? netns_get+0x110/0x110
[ 27.285490][ T12] ? cleanup_net+0x2d6/0x830
[ 27.285496][ T12] cleanup_net+0x3b2/0x830
[ 27.285500][ T12] ? net_passive_dec+0x190/0x190
[ 27.285504][ T12] ? rcu_is_watching+0x12/0xb0
[ 27.285512][ T12] process_one_work+0xe35/0x1650
[ 27.285519][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 27.285524][ T12] ? assign_work+0x168/0x240
[ 27.285529][ T12] worker_thread+0x591/0xcf0
[ 27.285535][ T12] ? rescuer_thread+0xd10/0xd10
[ 27.285539][ T12] kthread+0x37b/0x5f0
[ 27.285545][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 27.285548][ T12] ? ret_from_fork+0x1b/0x270
[ 27.285554][ T12] ? __lock_release+0x5d/0x170
[ 27.285559][ T12] ? rcu_is_watching+0x12/0xb0
[ 27.285562][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 27.285567][ T12] ret_from_fork+0x1db/0x270
[ 27.285569][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 27.285572][ T12] ret_from_fork_asm+0x11/0x20
[ 27.285583][ T12]
[ 27.285584][ T12] ==================================================================
[ 27.296264][ T12] Disabling lock debugging due to kernel taint
[ 27.296606][ T12] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 27.296863][ T12] #PF: supervisor write access in kernel mode
[ 27.297081][ T12] #PF: error_code(0x0002) - not-present page
[ 27.297397][ T12] PGD 0 P4D 0
[ 27.297540][ T12] Oops: Oops: 0002 [#1] SMP KASAN
[ 27.297721][ T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G B 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 27.298236][ T12] Tainted: [B]=BAD_PAGE
[ 27.298376][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 27.298612][ T12] Workqueue: netns cleanup_net
[ 27.298801][ T12] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 27.299027][ T12] Code: 00 41 89 c0 b8 01 00 00 00 45 85 c0 74 0f 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f c3 be 08 00 00 00 48 89 df e8 6f 7d 81 00 48 0f ba 2b 00 72 11 48 83 c4 10 31 c0 5b 5d 41 5c 41 5d 41 5e
[ 27.299763][ T12] RSP: 0000:ffffc900000c7690 EFLAGS: 00010046
[ 27.299987][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffabe4190a
[ 27.300257][ T12] RDX: fffffbfff605cecd RSI: 0000000000000008 RDI: ffffffffb02e7660
[ 27.300530][ T12] RBP: ffffc900000c76f8 R08: 0000000000000001 R09: fffffbfff605cecc
[ 27.300786][ T12] R10: ffffffffb02e7667 R11: ffffc900000c7180 R12: 0000000000000000
[ 27.301055][ T12] R13: 0000000000000286 R14: ffff888008771000 R15: dffffc0000000000
[ 27.301357][ T12] FS: 0000000000000000(0000) GS:ffff888085f84000(0000) knlGS:0000000000000000
[ 27.301696][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 27.301919][ T12] CR2: 0000000000000000 CR3: 0000000020959005 CR4: 0000000000772ef0
[ 27.302196][ T12] PKRU: 55555554
[ 27.302330][ T12] Call Trace:
[ 27.302475][ T12]
[ 27.302573][ T12] __cancel_work+0x7c/0x260
[ 27.302776][ T12] ? enable_delayed_work+0x10/0x10
[ 27.302961][ T12] ? qdisc_destroy+0x50/0x50
[ 27.303145][ T12] __cancel_work_sync+0x18/0xc0
[ 27.303318][ T12] __dev_close_many+0x1ce/0x810
[ 27.303608][ T12] ? netdev_notify_peers+0x20/0x20
[ 27.303781][ T12] ? netif_close_many+0x201/0x650
[ 27.303965][ T12] netif_close_many+0x201/0x650
[ 27.304140][ T12] ? __mutex_handoff+0x2b0/0x2b0
[ 27.304429][ T12] ? __dev_close_many+0x810/0x810
[ 27.304606][ T12] ? netif_close_many_and_unlock+0x21/0x2a0
[ 27.304823][ T12] unregister_netdevice_many_notify+0x305/0x1b30
[ 27.305349][ T12] ? find_held_lock+0x2b/0x80
[ 27.305537][ T12] ? rtnl_is_locked+0x15/0x20
[ 27.305710][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 27.305890][ T12] ? rtnl_is_locked+0x15/0x20
[ 27.306060][ T12] ? unregister_netdevice_queue+0x6f/0x410
[ 27.306382][ T12] ? lockdep_hardirqs_on+0x7c/0x110
[ 27.306566][ T12] ? unregister_netdevice_many+0x20/0x20
[ 27.306732][ T12] default_device_exit_batch+0x235/0x2d0
[ 27.306914][ T12] ? unregister_netdev+0x60/0x60
[ 27.307094][ T12] ops_undo_list+0x2bf/0x890
[ 27.307280][ T12] ? netns_get+0x110/0x110
[ 27.307469][ T12] ? cleanup_net+0x2d6/0x830
[ 27.307642][ T12] cleanup_net+0x3b2/0x830
[ 27.307814][ T12] ? net_passive_dec+0x190/0x190
[ 27.307985][ T12] ? rcu_is_watching+0x12/0xb0
[ 27.308171][ T12] process_one_work+0xe35/0x1650
[ 27.308344][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 27.308534][ T12] ? assign_work+0x168/0x240
[ 27.308705][ T12] worker_thread+0x591/0xcf0
[ 27.309086][ T12] ? rescuer_thread+0xd10/0xd10
[ 27.309267][ T12] kthread+0x37b/0x5f0
[ 27.309410][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 27.309586][ T12] ? ret_from_fork+0x1b/0x270
[ 27.309757][ T12] ? __lock_release+0x5d/0x170
[ 27.310027][ T12] ? rcu_is_watching+0x12/0xb0
[ 27.310209][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 27.310389][ T12] ret_from_fork+0x1db/0x270
[ 27.310569][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 27.310845][ T12] ret_from_fork_asm+0x11/0x20
[ 27.311020][ T12]
[ 27.311165][ T12] Modules linked in:
[ 27.311405][ T12] CR2: 0000000000000000
[ 27.311540][ T12] ---[ end trace 0000000000000000 ]---
[ 27.311811][ T12] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 27.312033][ T12] Code: 00 41 89 c0 b8 01 00 00 00 45 85 c0 74 0f 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f c3 be 08 00 00 00 48 89 df e8 6f 7d 81 00 48 0f ba 2b 00 72 11 48 83 c4 10 31 c0 5b 5d 41 5c 41 5d 41 5e
[ 27.312758][ T12] RSP: 0000:ffffc900000c7690 EFLAGS: 00010046
[ 27.312974][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffabe4190a
[ 27.313456][ T12] RDX: fffffbfff605cecd RSI: 0000000000000008 RDI: ffffffffb02e7660
[ 27.313711][ T12] RBP: ffffc900000c76f8 R08: 0000000000000001 R09: fffffbfff605cecc
[ 27.313970][ T12] R10: ffffffffb02e7667 R11: ffffc900000c7180 R12: 0000000000000000
[ 27.314323][ T12] R13: 0000000000000286 R14: ffff888008771000 R15: dffffc0000000000
[ 27.314591][ T12] FS: 0000000000000000(0000) GS:ffff888085f84000(0000) knlGS:0000000000000000
[ 27.314946][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 27.315265][ T12] CR2: 0000000000000000 CR3: 0000000020959005 CR4: 0000000000772ef0
[ 27.315554][ T12] PKRU: 55555554
[ 27.315687][ T12] Kernel panic - not syncing: Fatal exception
[ 27.316096][ T12] Kernel Offset: 0x2a800000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 27.316533][ T12] ---[ end Kernel panic - not syncing: Fatal exception ]---
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