[ 13.945788][ T12] ==================================================================
[ 13.946134][ T12] BUG: KASAN: null-ptr-deref in try_to_grab_pending+0x81/0x6c0
[ 13.946399][ T12] Write of size 8 at addr 0000000000000000 by task kworker/u16:0/12
[ 13.946652][ T12]
[ 13.946745][ T12] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 13.946751][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 13.946754][ T12] Workqueue: netns cleanup_net
[ 13.946762][ T12] Call Trace:
[ 13.946764][ T12]
[ 13.946767][ T12] dump_stack_lvl+0x82/0xc0
[ 13.946775][ T12] ? try_to_grab_pending+0x81/0x6c0
[ 13.946778][ T12] kasan_report+0xca/0x100
[ 13.946786][ T12] ? try_to_grab_pending+0x81/0x6c0
[ 13.946791][ T12] kasan_check_range+0x39/0x1b0
[ 13.946794][ T12] try_to_grab_pending+0x81/0x6c0
[ 13.946799][ T12] __cancel_work+0x7c/0x260
[ 13.946802][ T12] ? enable_delayed_work+0x10/0x10
[ 13.946807][ T12] ? queue_delayed_work_on+0x6a/0xa0
[ 13.946811][ T12] __cancel_work_sync+0x18/0xc0
[ 13.946815][ T12] __dev_close_many+0x1ce/0x810
[ 13.946820][ T12] ? netdev_notify_peers+0x20/0x20
[ 13.946824][ T12] ? netif_close_many+0x201/0x650
[ 13.946829][ T12] netif_close_many+0x201/0x650
[ 13.946832][ T12] ? __mutex_handoff+0x2b0/0x2b0
[ 13.946837][ T12] ? __dev_close_many+0x810/0x810
[ 13.946841][ T12] ? netif_close_many_and_unlock+0x21/0x2a0
[ 13.946845][ T12] unregister_netdevice_many_notify+0x305/0x1b30
[ 13.946851][ T12] ? find_held_lock+0x2b/0x80
[ 13.946857][ T12] ? mutex_is_locked+0x1c/0x50
[ 13.946860][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 13.946864][ T12] ? rtnl_is_locked+0x15/0x20
[ 13.946868][ T12] ? unregister_netdevice_queue+0x6f/0x410
[ 13.946873][ T12] ? unregister_netdevice_many+0x20/0x20
[ 13.946879][ T12] ? unregister_netdevice_many+0x20/0x20
[ 13.946887][ T12] default_device_exit_batch+0x235/0x2d0
[ 13.946891][ T12] ? unregister_netdev+0x60/0x60
[ 13.946897][ T12] ops_undo_list+0x2bf/0x890
[ 13.946902][ T12] ? netns_get+0x110/0x110
[ 13.946904][ T12] ? cleanup_net+0x2d6/0x830
[ 13.946909][ T12] cleanup_net+0x3b2/0x830
[ 13.946912][ T12] ? net_passive_dec+0x190/0x190
[ 13.946916][ T12] ? rcu_is_watching+0x12/0xb0
[ 13.946923][ T12] process_one_work+0xe35/0x1650
[ 13.946929][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 13.946934][ T12] ? assign_work+0x168/0x240
[ 13.946938][ T12] worker_thread+0x591/0xcf0
[ 13.946944][ T12] ? rescuer_thread+0xd10/0xd10
[ 13.946947][ T12] kthread+0x37b/0x5f0
[ 13.946951][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 13.946953][ T12] ? ret_from_fork+0x1b/0x270
[ 13.946961][ T12] ? __lock_release+0x5d/0x170
[ 13.946966][ T12] ? rcu_is_watching+0x12/0xb0
[ 13.946969][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 13.946973][ T12] ret_from_fork+0x1db/0x270
[ 13.946976][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 13.946979][ T12] ret_from_fork_asm+0x11/0x20
[ 13.946988][ T12]
[ 13.946989][ T12] ==================================================================
[ 13.956149][ T12] Disabling lock debugging due to kernel taint
[ 13.956361][ T12] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 13.956605][ T12] #PF: supervisor write access in kernel mode
[ 13.956815][ T12] #PF: error_code(0x0002) - not-present page
[ 13.957035][ T12] PGD 0 P4D 0
[ 13.957163][ T12] Oops: Oops: 0002 [#1] SMP KASAN
[ 13.957332][ T12] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G B 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 13.957702][ T12] Tainted: [B]=BAD_PAGE
[ 13.957826][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 13.958055][ T12] Workqueue: netns cleanup_net
[ 13.958234][ T12] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 13.958446][ 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 7f 7f 81 00 48 0f ba 2b 00 72 11 48 83 c4 10 31 c0 5b 5d 41 5c 41 5d 41 5e
[ 13.959045][ T12] RSP: 0018:ffffc900000c7690 EFLAGS: 00010046
[ 13.959257][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaec3f90a
[ 13.959501][ T12] RDX: fffffbfff65cb6cd RSI: 0000000000000008 RDI: ffffffffb2e5b660
[ 13.959752][ T12] RBP: ffffc900000c76f8 R08: 0000000000000001 R09: fffffbfff65cb6cc
[ 13.960077][ T12] R10: ffffffffb2e5b667 R11: ffffc900000c7180 R12: 0000000000000000
[ 13.960360][ T12] R13: 0000000000000286 R14: ffff888009404000 R15: dffffc0000000000
[ 13.960632][ T12] FS: 0000000000000000(0000) GS:ffff88807d890000(0000) knlGS:0000000000000000
[ 13.960945][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 13.961159][ T12] CR2: 0000000000000000 CR3: 000000000c762006 CR4: 0000000000772ef0
[ 13.961410][ T12] PKRU: 55555554
[ 13.961574][ T12] Call Trace:
[ 13.961708][ T12]
[ 13.961806][ T12] __cancel_work+0x7c/0x260
[ 13.962003][ T12] ? enable_delayed_work+0x10/0x10
[ 13.962194][ T12] ? queue_delayed_work_on+0x6a/0xa0
[ 13.962373][ T12] __cancel_work_sync+0x18/0xc0
[ 13.962552][ T12] __dev_close_many+0x1ce/0x810
[ 13.962734][ T12] ? netdev_notify_peers+0x20/0x20
[ 13.962922][ T12] ? netif_close_many+0x201/0x650
[ 13.963111][ T12] netif_close_many+0x201/0x650
[ 13.963289][ T12] ? __mutex_handoff+0x2b0/0x2b0
[ 13.963480][ T12] ? __dev_close_many+0x810/0x810
[ 13.963658][ T12] ? netif_close_many_and_unlock+0x21/0x2a0
[ 13.963886][ T12] unregister_netdevice_many_notify+0x305/0x1b30
[ 13.964116][ T12] ? find_held_lock+0x2b/0x80
[ 13.964298][ T12] ? mutex_is_locked+0x1c/0x50
[ 13.964485][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 13.964661][ T12] ? rtnl_is_locked+0x15/0x20
[ 13.964844][ T12] ? unregister_netdevice_queue+0x6f/0x410
[ 13.965079][ T12] ? unregister_netdevice_many+0x20/0x20
[ 13.965260][ T12] ? unregister_netdevice_many+0x20/0x20
[ 13.965445][ T12] default_device_exit_batch+0x235/0x2d0
[ 13.965632][ T12] ? unregister_netdev+0x60/0x60
[ 13.965822][ T12] ops_undo_list+0x2bf/0x890
[ 13.966022][ T12] ? netns_get+0x110/0x110
[ 13.966219][ T12] ? cleanup_net+0x2d6/0x830
[ 13.966410][ T12] cleanup_net+0x3b2/0x830
[ 13.966595][ T12] ? net_passive_dec+0x190/0x190
[ 13.966775][ T12] ? rcu_is_watching+0x12/0xb0
[ 13.966972][ T12] process_one_work+0xe35/0x1650
[ 13.967164][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 13.967347][ T12] ? assign_work+0x168/0x240
[ 13.967531][ T12] worker_thread+0x591/0xcf0
[ 13.967712][ T12] ? rescuer_thread+0xd10/0xd10
[ 13.967910][ T12] kthread+0x37b/0x5f0
[ 13.968055][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 13.968235][ T12] ? ret_from_fork+0x1b/0x270
[ 13.968425][ T12] ? __lock_release+0x5d/0x170
[ 13.968611][ T12] ? rcu_is_watching+0x12/0xb0
[ 13.968793][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 13.968985][ T12] ret_from_fork+0x1db/0x270
[ 13.969170][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 13.969348][ T12] ret_from_fork_asm+0x11/0x20
[ 13.969538][ T12]
[ 13.969676][ T12] Modules linked in: veth
[ 13.969826][ T12] CR2: 0000000000000000
[ 13.969989][ T12] ---[ end trace 0000000000000000 ]---
[ 13.970179][ T12] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 13.970408][ 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 7f 7f 81 00 48 0f ba 2b 00 72 11 48 83 c4 10 31 c0 5b 5d 41 5c 41 5d 41 5e
[ 13.971069][ T12] RSP: 0018:ffffc900000c7690 EFLAGS: 00010046
[ 13.971303][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaec3f90a
[ 13.971582][ T12] RDX: fffffbfff65cb6cd RSI: 0000000000000008 RDI: ffffffffb2e5b660
[ 13.971855][ T12] RBP: ffffc900000c76f8 R08: 0000000000000001 R09: fffffbfff65cb6cc
[ 13.972133][ T12] R10: ffffffffb2e5b667 R11: ffffc900000c7180 R12: 0000000000000000
[ 13.972404][ T12] R13: 0000000000000286 R14: ffff888009404000 R15: dffffc0000000000
[ 13.972682][ T12] FS: 0000000000000000(0000) GS:ffff88807d890000(0000) knlGS:0000000000000000
[ 13.973008][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 13.973242][ T12] CR2: 0000000000000000 CR3: 000000000c762006 CR4: 0000000000772ef0
[ 13.973532][ T12] PKRU: 55555554
[ 13.973669][ T12] Kernel panic - not syncing: Fatal exception
[ 13.973999][ T12] Kernel Offset: 0x2d600000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 13.974423][ T12] ---[ end Kernel panic - not syncing: Fatal exception ]---
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