[ 16.072880][ T12] ==================================================================
[ 16.073208][ T12] BUG: KASAN: null-ptr-deref in try_to_grab_pending+0x81/0x6c0
[ 16.073496][ T12] Write of size 8 at addr 0000000000000000 by task kworker/u16:0/12
[ 16.073774][ T12]
[ 16.073873][ T12] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 16.073878][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 16.073881][ T12] Workqueue: netns cleanup_net
[ 16.073890][ T12] Call Trace:
[ 16.073892][ T12]
[ 16.073895][ T12] dump_stack_lvl+0x82/0xc0
[ 16.073902][ T12] ? try_to_grab_pending+0x81/0x6c0
[ 16.073905][ T12] kasan_report+0xca/0x100
[ 16.073913][ T12] ? try_to_grab_pending+0x81/0x6c0
[ 16.073918][ T12] kasan_check_range+0x39/0x1b0
[ 16.073921][ T12] try_to_grab_pending+0x81/0x6c0
[ 16.073926][ T12] __cancel_work+0x7c/0x260
[ 16.073928][ T12] ? enable_delayed_work+0x10/0x10
[ 16.073933][ T12] ? qdisc_destroy+0x50/0x50
[ 16.073941][ T12] __cancel_work_sync+0x18/0xc0
[ 16.073945][ T12] __dev_close_many+0x1ce/0x810
[ 16.073950][ T12] ? netdev_notify_peers+0x20/0x20
[ 16.073954][ T12] ? netif_close_many+0x201/0x650
[ 16.073959][ T12] netif_close_many+0x201/0x650
[ 16.073963][ T12] ? __dev_close_many+0x810/0x810
[ 16.073966][ T12] ? netif_close_many_and_unlock+0x21/0x2a0
[ 16.073971][ T12] unregister_netdevice_many_notify+0x305/0x1b30
[ 16.073977][ T12] ? unregister_netdevice_many+0x20/0x20
[ 16.073981][ T12] ? vrf_dellink+0xf4/0x150
[ 16.073986][ T12] ? __lock_release+0x5d/0x170
[ 16.073994][ T12] ? mutex_is_locked+0x1c/0x50
[ 16.073998][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 16.074001][ T12] ? rtnl_is_locked+0x15/0x20
[ 16.074004][ T12] ? unregister_netdevice_queue+0x6f/0x410
[ 16.074007][ T12] ? unregister_netdevice_many+0x20/0x20
[ 16.074010][ T12] ? vrf_dellink+0xff/0x150
[ 16.074013][ T12] ? unregister_netdevice_many+0x20/0x20
[ 16.074019][ T12] default_device_exit_batch+0x235/0x2d0
[ 16.074023][ T12] ? unregister_netdev+0x60/0x60
[ 16.074029][ T12] ops_undo_list+0x2bf/0x890
[ 16.074033][ T12] ? netns_get+0x110/0x110
[ 16.074036][ T12] ? cleanup_net+0x2d6/0x830
[ 16.074041][ T12] cleanup_net+0x3b2/0x830
[ 16.074044][ T12] ? net_passive_dec+0x190/0x190
[ 16.074048][ T12] ? rcu_is_watching+0x12/0xb0
[ 16.074054][ T12] process_one_work+0xe35/0x1650
[ 16.074060][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 16.074065][ T12] ? assign_work+0x168/0x240
[ 16.074069][ T12] worker_thread+0x591/0xcf0
[ 16.074074][ T12] ? rescuer_thread+0xd10/0xd10
[ 16.074078][ T12] kthread+0x37b/0x5f0
[ 16.074082][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 16.074084][ T12] ? ret_from_fork+0x1b/0x270
[ 16.074091][ T12] ? __lock_release+0x5d/0x170
[ 16.074094][ T12] ? rcu_is_watching+0x12/0xb0
[ 16.074097][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 16.074100][ T12] ret_from_fork+0x1db/0x270
[ 16.074103][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 16.074105][ T12] ret_from_fork_asm+0x11/0x20
[ 16.074114][ T12]
[ 16.074115][ T12] ==================================================================
[ 16.084354][ T12] Disabling lock debugging due to kernel taint
[ 16.084581][ T12] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 16.084852][ T12] #PF: supervisor write access in kernel mode
[ 16.085066][ T12] #PF: error_code(0x0002) - not-present page
[ 16.085281][ T12] PGD 0 P4D 0
[ 16.085417][ T12] Oops: Oops: 0002 [#1] SMP KASAN
[ 16.085597][ T12] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G B 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 16.085998][ T12] Tainted: [B]=BAD_PAGE
[ 16.086132][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 16.086352][ T12] Workqueue: netns cleanup_net
[ 16.086539][ T12] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 16.086774][ 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
[ 16.087396][ T12] RSP: 0000:ffffc900000c7690 EFLAGS: 00010046
[ 16.087615][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffa603f90a
[ 16.087892][ T12] RDX: fffffbfff544b6cd RSI: 0000000000000008 RDI: ffffffffaa25b660
[ 16.088157][ T12] RBP: ffffc900000c76f8 R08: 0000000000000001 R09: fffffbfff544b6cc
[ 16.088428][ T12] R10: ffffffffaa25b667 R11: ffffc900000c7180 R12: 0000000000000000
[ 16.088727][ T12] R13: 0000000000000286 R14: ffff88800a0ac000 R15: dffffc0000000000
[ 16.089014][ T12] FS: 0000000000000000(0000) GS:ffff88808c190000(0000) knlGS:0000000000000000
[ 16.089327][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 16.089553][ T12] CR2: 0000000000000000 CR3: 000000000593d006 CR4: 0000000000772ef0
[ 16.089830][ T12] PKRU: 55555554
[ 16.089969][ T12] Call Trace:
[ 16.090106][ T12]
[ 16.090199][ T12] __cancel_work+0x7c/0x260
[ 16.090376][ T12] ? enable_delayed_work+0x10/0x10
[ 16.090553][ T12] ? qdisc_destroy+0x50/0x50
[ 16.090737][ T12] __cancel_work_sync+0x18/0xc0
[ 16.090916][ T12] __dev_close_many+0x1ce/0x810
[ 16.091093][ T12] ? netdev_notify_peers+0x20/0x20
[ 16.091267][ T12] ? netif_close_many+0x201/0x650
[ 16.091442][ T12] netif_close_many+0x201/0x650
[ 16.091615][ T12] ? __dev_close_many+0x810/0x810
[ 16.091794][ T12] ? netif_close_many_and_unlock+0x21/0x2a0
[ 16.092014][ T12] unregister_netdevice_many_notify+0x305/0x1b30
[ 16.092245][ T12] ? unregister_netdevice_many+0x20/0x20
[ 16.092442][ T12] ? vrf_dellink+0xf4/0x150
[ 16.092627][ T12] ? __lock_release+0x5d/0x170
[ 16.092815][ T12] ? mutex_is_locked+0x1c/0x50
[ 16.092991][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 16.093164][ T12] ? rtnl_is_locked+0x15/0x20
[ 16.093336][ T12] ? unregister_netdevice_queue+0x6f/0x410
[ 16.093553][ T12] ? unregister_netdevice_many+0x20/0x20
[ 16.093740][ T12] ? vrf_dellink+0xff/0x150
[ 16.093915][ T12] ? unregister_netdevice_many+0x20/0x20
[ 16.094092][ T12] default_device_exit_batch+0x235/0x2d0
[ 16.094266][ T12] ? unregister_netdev+0x60/0x60
[ 16.094444][ T12] ops_undo_list+0x2bf/0x890
[ 16.094619][ T12] ? netns_get+0x110/0x110
[ 16.094802][ T12] ? cleanup_net+0x2d6/0x830
[ 16.094978][ T12] cleanup_net+0x3b2/0x830
[ 16.095161][ T12] ? net_passive_dec+0x190/0x190
[ 16.095331][ T12] ? rcu_is_watching+0x12/0xb0
[ 16.095510][ T12] process_one_work+0xe35/0x1650
[ 16.095736][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 16.095919][ T12] ? assign_work+0x168/0x240
[ 16.096098][ T12] worker_thread+0x591/0xcf0
[ 16.096281][ T12] ? rescuer_thread+0xd10/0xd10
[ 16.096451][ T12] kthread+0x37b/0x5f0
[ 16.096589][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 16.096771][ T12] ? ret_from_fork+0x1b/0x270
[ 16.096968][ T12] ? __lock_release+0x5d/0x170
[ 16.097143][ T12] ? rcu_is_watching+0x12/0xb0
[ 16.097316][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 16.097493][ T12] ret_from_fork+0x1db/0x270
[ 16.097671][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 16.097853][ T12] ret_from_fork_asm+0x11/0x20
[ 16.098045][ T12]
[ 16.098195][ T12] Modules linked in: veth
[ 16.098336][ T12] CR2: 0000000000000000
[ 16.098473][ T12] ---[ end trace 0000000000000000 ]---
[ 16.098648][ T12] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 16.098877][ 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
[ 16.099502][ T12] RSP: 0000:ffffc900000c7690 EFLAGS: 00010046
[ 16.099727][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffa603f90a
[ 16.099988][ T12] RDX: fffffbfff544b6cd RSI: 0000000000000008 RDI: ffffffffaa25b660
[ 16.100257][ T12] RBP: ffffc900000c76f8 R08: 0000000000000001 R09: fffffbfff544b6cc
[ 16.100523][ T12] R10: ffffffffaa25b667 R11: ffffc900000c7180 R12: 0000000000000000
[ 16.100787][ T12] R13: 0000000000000286 R14: ffff88800a0ac000 R15: dffffc0000000000
[ 16.101053][ T12] FS: 0000000000000000(0000) GS:ffff88808c190000(0000) knlGS:0000000000000000
[ 16.101460][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 16.101685][ T12] CR2: 0000000000000000 CR3: 000000000593d006 CR4: 0000000000772ef0
[ 16.101949][ T12] PKRU: 55555554
[ 16.102092][ T12] Kernel panic - not syncing: Fatal exception
[ 16.102487][ T12] Kernel Offset: 0x24a00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 16.102912][ T12] ---[ end Kernel panic - not syncing: Fatal exception ]---
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