[ 19.197321][ T264] ip (264) used greatest stack depth: 23760 bytes left
[ 25.082064][ T304] netem: version 1.3
[ 159.548938][ T71] ==================================================================
[ 159.549273][ T71] BUG: KASAN: null-ptr-deref in try_to_grab_pending+0x81/0x6c0
[ 159.549544][ T71] Write of size 8 at addr 0000000000000000 by task kworker/u16:1/71
[ 159.549840][ T71]
[ 159.549955][ T71] CPU: 0 UID: 0 PID: 71 Comm: kworker/u16:1 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 159.549960][ T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 159.549962][ T71] Workqueue: netns cleanup_net
[ 159.549976][ T71] Call Trace:
[ 159.549977][ T71]
[ 159.549980][ T71] dump_stack_lvl+0x82/0xc0
[ 159.549988][ T71] ? try_to_grab_pending+0x81/0x6c0
[ 159.549991][ T71] kasan_report+0xca/0x100
[ 159.549997][ T71] ? try_to_grab_pending+0x81/0x6c0
[ 159.550003][ T71] kasan_check_range+0x39/0x1b0
[ 159.550007][ T71] try_to_grab_pending+0x81/0x6c0
[ 159.550012][ T71] __cancel_work+0x7c/0x260
[ 159.550015][ T71] ? enable_delayed_work+0x10/0x10
[ 159.550020][ T71] ? queue_delayed_work_on+0x6a/0xa0
[ 159.550025][ T71] __cancel_work_sync+0x18/0xc0
[ 159.550029][ T71] __dev_close_many+0x1ce/0x810
[ 159.550035][ T71] ? netdev_notify_peers+0x20/0x20
[ 159.550040][ T71] ? netif_close_many+0x201/0x650
[ 159.550045][ T71] netif_close_many+0x201/0x650
[ 159.550048][ T71] ? __mutex_handoff+0x2b0/0x2b0
[ 159.550054][ T71] ? __dev_close_many+0x810/0x810
[ 159.550058][ T71] ? netif_close_many_and_unlock+0x21/0x2a0
[ 159.550063][ T71] unregister_netdevice_many_notify+0x305/0x1b30
[ 159.550067][ T71] ? find_held_lock+0x2b/0x80
[ 159.550071][ T71] ? mutex_is_locked+0x1c/0x50
[ 159.550074][ T71] ? dev_ingress_queue_create+0x190/0x190
[ 159.550077][ T71] ? rtnl_is_locked+0x15/0x20
[ 159.550079][ T71] ? unregister_netdevice_queue+0x6f/0x410
[ 159.550082][ T71] ? unregister_netdevice_many+0x20/0x20
[ 159.550085][ T71] ? unregister_netdevice_many+0x20/0x20
[ 159.550091][ T71] default_device_exit_batch+0x235/0x2d0
[ 159.550094][ T71] ? unregister_netdev+0x60/0x60
[ 159.550100][ T71] ops_undo_list+0x2bf/0x890
[ 159.550105][ T71] ? netns_get+0x110/0x110
[ 159.550107][ T71] ? cleanup_net+0x2d6/0x830
[ 159.550113][ T71] cleanup_net+0x3b2/0x830
[ 159.550117][ T71] ? net_passive_dec+0x190/0x190
[ 159.550121][ T71] ? rcu_is_watching+0x12/0xb0
[ 159.550128][ T71] process_one_work+0xe35/0x1650
[ 159.550137][ T71] ? pwq_dec_nr_in_flight+0x550/0x550
[ 159.550143][ T71] ? assign_work+0x168/0x240
[ 159.550148][ T71] worker_thread+0x591/0xcf0
[ 159.550154][ T71] ? rescuer_thread+0xd10/0xd10
[ 159.550158][ T71] kthread+0x37b/0x5f0
[ 159.550162][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 159.550165][ T71] ? ret_from_fork+0x1b/0x270
[ 159.550170][ T71] ? __lock_release+0x5d/0x170
[ 159.550175][ T71] ? rcu_is_watching+0x12/0xb0
[ 159.550180][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 159.550186][ T71] ret_from_fork+0x1db/0x270
[ 159.550190][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 159.550195][ T71] ret_from_fork_asm+0x11/0x20
[ 159.550207][ T71]
[ 159.550208][ T71] ==================================================================
[ 159.560033][ T71] Disabling lock debugging due to kernel taint
[ 159.560378][ T71] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 159.560654][ T71] #PF: supervisor write access in kernel mode
[ 159.560920][ T71] #PF: error_code(0x0002) - not-present page
[ 159.561279][ T71] PGD 0 P4D 0
[ 159.561458][ T71] Oops: Oops: 0002 [#1] SMP KASAN
[ 159.561665][ T71] CPU: 0 UID: 0 PID: 71 Comm: kworker/u16:1 Tainted: G B 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 159.562220][ T71] Tainted: [B]=BAD_PAGE
[ 159.562388][ T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 159.562664][ T71] Workqueue: netns cleanup_net
[ 159.562882][ T71] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 159.563267][ T71] 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
[ 159.563910][ T71] RSP: 0018:ffffc900004c7690 EFLAGS: 00010046
[ 159.564126][ T71] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff9b44190a
[ 159.564394][ T71] RDX: fffffbfff3f1cecd RSI: 0000000000000008 RDI: ffffffff9f8e7660
[ 159.564746][ T71] RBP: ffffc900004c76f8 R08: 0000000000000001 R09: fffffbfff3f1cecc
[ 159.565080][ T71] R10: ffffffff9f8e7667 R11: ffffc900004c7180 R12: 0000000000000000
[ 159.565371][ T71] R13: 0000000000000286 R14: ffff88800a1bc000 R15: dffffc0000000000
[ 159.565736][ T71] FS: 0000000000000000(0000) GS:ffff888096984000(0000) knlGS:0000000000000000
[ 159.566025][ T71] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 159.566261][ T71] CR2: 0000000000000000 CR3: 000000001cf59001 CR4: 0000000000772ef0
[ 159.566617][ T71] PKRU: 55555554
[ 159.566750][ T71] Call Trace:
[ 159.566875][ T71]
[ 159.566963][ T71] __cancel_work+0x7c/0x260
[ 159.567139][ T71] ? enable_delayed_work+0x10/0x10
[ 159.567306][ T71] ? queue_delayed_work_on+0x6a/0xa0
[ 159.567465][ T71] __cancel_work_sync+0x18/0xc0
[ 159.567632][ T71] __dev_close_many+0x1ce/0x810
[ 159.567829][ T71] ? netdev_notify_peers+0x20/0x20
[ 159.567997][ T71] ? netif_close_many+0x201/0x650
[ 159.568213][ T71] netif_close_many+0x201/0x650
[ 159.568382][ T71] ? __mutex_handoff+0x2b0/0x2b0
[ 159.568564][ T71] ? __dev_close_many+0x810/0x810
[ 159.568739][ T71] ? netif_close_many_and_unlock+0x21/0x2a0
[ 159.568942][ T71] unregister_netdevice_many_notify+0x305/0x1b30
[ 159.569246][ T71] ? find_held_lock+0x2b/0x80
[ 159.569406][ T71] ? mutex_is_locked+0x1c/0x50
[ 159.569566][ T71] ? dev_ingress_queue_create+0x190/0x190
[ 159.569736][ T71] ? rtnl_is_locked+0x15/0x20
[ 159.569922][ T71] ? unregister_netdevice_queue+0x6f/0x410
[ 159.570119][ T71] ? unregister_netdevice_many+0x20/0x20
[ 159.570374][ T71] ? unregister_netdevice_many+0x20/0x20
[ 159.570541][ T71] default_device_exit_batch+0x235/0x2d0
[ 159.570832][ T71] ? unregister_netdev+0x60/0x60
[ 159.570995][ T71] ops_undo_list+0x2bf/0x890
[ 159.571172][ T71] ? netns_get+0x110/0x110
[ 159.571340][ T71] ? cleanup_net+0x2d6/0x830
[ 159.571502][ T71] cleanup_net+0x3b2/0x830
[ 159.571666][ T71] ? net_passive_dec+0x190/0x190
[ 159.571836][ T71] ? rcu_is_watching+0x12/0xb0
[ 159.572000][ T71] process_one_work+0xe35/0x1650
[ 159.572162][ T71] ? pwq_dec_nr_in_flight+0x550/0x550
[ 159.572328][ T71] ? assign_work+0x168/0x240
[ 159.572585][ T71] worker_thread+0x591/0xcf0
[ 159.572776][ T71] ? rescuer_thread+0xd10/0xd10
[ 159.573031][ T71] kthread+0x37b/0x5f0
[ 159.573156][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 159.573318][ T71] ? ret_from_fork+0x1b/0x270
[ 159.573479][ T71] ? __lock_release+0x5d/0x170
[ 159.573756][ T71] ? rcu_is_watching+0x12/0xb0
[ 159.574011][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 159.574183][ T71] ret_from_fork+0x1db/0x270
[ 159.574348][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 159.574506][ T71] ret_from_fork_asm+0x11/0x20
[ 159.574678][ T71]
[ 159.574811][ T71] Modules linked in: sch_netem
[ 159.574979][ T71] CR2: 0000000000000000
[ 159.575101][ T71] ---[ end trace 0000000000000000 ]---
[ 159.575379][ T71] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 159.575588][ T71] 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
[ 159.576193][ T71] RSP: 0018:ffffc900004c7690 EFLAGS: 00010046
[ 159.576400][ T71] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff9b44190a
[ 159.576643][ T71] RDX: fffffbfff3f1cecd RSI: 0000000000000008 RDI: ffffffff9f8e7660
[ 159.577010][ T71] RBP: ffffc900004c76f8 R08: 0000000000000001 R09: fffffbfff3f1cecc
[ 159.577259][ T71] R10: ffffffff9f8e7667 R11: ffffc900004c7180 R12: 0000000000000000
[ 159.577531][ T71] R13: 0000000000000286 R14: ffff88800a1bc000 R15: dffffc0000000000
[ 159.577789][ T71] FS: 0000000000000000(0000) GS:ffff888096984000(0000) knlGS:0000000000000000
[ 159.578080][ T71] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 159.578515][ T71] CR2: 0000000000000000 CR3: 000000001cf59001 CR4: 0000000000772ef0
[ 159.578785][ T71] PKRU: 55555554
[ 159.578920][ T71] Kernel panic - not syncing: Fatal exception
[ 159.579306][ T71] Kernel Offset: 0x19e00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 159.579735][ T71] ---[ end Kernel panic - not syncing: Fatal exception ]---
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