[ 18.323367][ T71] ==================================================================
[ 18.323752][ T71] BUG: KASAN: null-ptr-deref in try_to_grab_pending+0x81/0x6c0
[ 18.324079][ T71] Write of size 8 at addr 0000000000000000 by task kworker/u16:1/71
[ 18.324371][ T71]
[ 18.324487][ T71] CPU: 2 UID: 0 PID: 71 Comm: kworker/u16:1 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 18.324492][ T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.324498][ T71] Workqueue: netns cleanup_net
[ 18.324514][ T71] Call Trace:
[ 18.324520][ T71]
[ 18.324523][ T71] dump_stack_lvl+0x82/0xc0
[ 18.324533][ T71] ? try_to_grab_pending+0x81/0x6c0
[ 18.324537][ T71] kasan_report+0xca/0x100
[ 18.324558][ T71] ? try_to_grab_pending+0x81/0x6c0
[ 18.324566][ T71] kasan_check_range+0x39/0x1b0
[ 18.324570][ T71] try_to_grab_pending+0x81/0x6c0
[ 18.324575][ T71] __cancel_work+0x7c/0x260
[ 18.324578][ T71] ? enable_delayed_work+0x10/0x10
[ 18.324585][ T71] __cancel_work_sync+0x18/0xc0
[ 18.324590][ T71] __dev_close_many+0x1cf/0x980
[ 18.324597][ T71] ? netdev_notify_peers+0x20/0x20
[ 18.324600][ T71] ? netif_close_many+0x201/0x650
[ 18.324605][ T71] netif_close_many+0x201/0x650
[ 18.324608][ T71] ? __mutex_handoff+0x2b0/0x2b0
[ 18.324616][ T71] ? __dev_close_many+0x980/0x980
[ 18.324620][ T71] ? netif_close_many_and_unlock+0x21/0x2a0
[ 18.324623][ T71] ? trace_contention_end+0xd8/0x140
[ 18.324627][ T71] unregister_netdevice_many_notify+0x30a/0x1c90
[ 18.324631][ T71] ? default_device_exit_batch+0x80/0x2d0
[ 18.324636][ T71] ? mutex_is_locked+0x1c/0x50
[ 18.324640][ T71] ? dev_ingress_queue_create+0x190/0x190
[ 18.324643][ T71] ? rtnl_is_locked+0x15/0x20
[ 18.324649][ T71] ? unregister_netdevice_queue+0x6f/0x410
[ 18.324652][ T71] ? unregister_netdevice_many+0x20/0x20
[ 18.324656][ T71] ? unregister_netdevice_many+0x20/0x20
[ 18.324662][ T71] default_device_exit_batch+0x235/0x2d0
[ 18.324665][ T71] ? unregister_netdev+0x60/0x60
[ 18.324672][ T71] ops_undo_list+0x2bf/0x890
[ 18.324677][ T71] ? rtnl_net_dumpid_one+0x270/0x270
[ 18.324680][ T71] ? cleanup_net+0x2d6/0x8b0
[ 18.324687][ T71] cleanup_net+0x3b2/0x8b0
[ 18.324691][ T71] ? net_passive_dec+0x190/0x190
[ 18.324696][ T71] ? rcu_is_watching+0x12/0xb0
[ 18.324705][ T71] process_one_work+0xe35/0x1650
[ 18.324712][ T71] ? pwq_dec_nr_in_flight+0x550/0x550
[ 18.324717][ T71] ? assign_work+0x168/0x240
[ 18.324722][ T71] worker_thread+0x591/0xcf0
[ 18.324728][ T71] ? rescuer_thread+0xd10/0xd10
[ 18.324731][ T71] kthread+0x37b/0x5f0
[ 18.324740][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 18.324742][ T71] ? ret_from_fork+0x1b/0x270
[ 18.324751][ T71] ? __lock_release+0x5d/0x170
[ 18.324755][ T71] ? rcu_is_watching+0x12/0xb0
[ 18.324758][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 18.324762][ T71] ret_from_fork+0x1db/0x270
[ 18.324764][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 18.324767][ T71] ret_from_fork_asm+0x11/0x20
[ 18.324779][ T71]
[ 18.324781][ T71] ==================================================================
[ 18.335418][ T71] Disabling lock debugging due to kernel taint
[ 18.335688][ T71] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 18.335983][ T71] #PF: supervisor write access in kernel mode
[ 18.336335][ T71] #PF: error_code(0x0002) - not-present page
[ 18.336588][ T71] PGD 0 P4D 0
[ 18.336735][ T71] Oops: Oops: 0002 [#1] SMP KASAN
[ 18.336940][ T71] CPU: 2 UID: 0 PID: 71 Comm: kworker/u16:1 Tainted: G B 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 18.337374][ T71] Tainted: [B]=BAD_PAGE
[ 18.337529][ T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.337777][ T71] Workqueue: netns cleanup_net
[ 18.337990][ T71] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 18.338237][ 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 1f 93 82 00 48 0f ba 2b 00 72 11 48 83 c4 10 31 c0 5b 5d 41 5c 41 5d 41 5e
[ 18.338925][ T71] RSP: 0018:ffffc900004c7680 EFLAGS: 00010046
[ 18.339165][ T71] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffa8849b8a
[ 18.339568][ T71] RDX: fffffbfff5aacacd RSI: 0000000000000008 RDI: ffffffffad565660
[ 18.339854][ T71] RBP: ffffc900004c76e8 R08: 0000000000000001 R09: fffffbfff5aacacc
[ 18.340234][ T71] R10: ffffffffad565667 R11: ffffc900004c7140 R12: 0000000000000000
[ 18.340534][ T71] R13: 0000000000000282 R14: ffff888005f91000 R15: dffffc0000000000
[ 18.340822][ T71] FS: 0000000000000000(0000) GS:ffff8880bfc07000(0000) knlGS:0000000000000000
[ 18.341157][ T71] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 18.341406][ T71] CR2: 0000000000000000 CR3: 000000000cd1b006 CR4: 0000000000772ef0
[ 18.341707][ T71] PKRU: 55555554
[ 18.341863][ T71] Call Trace:
[ 18.342025][ T71]
[ 18.342123][ T71] __cancel_work+0x7c/0x260
[ 18.342428][ T71] ? enable_delayed_work+0x10/0x10
[ 18.342687][ T71] __cancel_work_sync+0x18/0xc0
[ 18.342896][ T71] __dev_close_many+0x1cf/0x980
[ 18.343179][ T71] ? netdev_notify_peers+0x20/0x20
[ 18.343464][ T71] ? netif_close_many+0x201/0x650
[ 18.343661][ T71] netif_close_many+0x201/0x650
[ 18.343852][ T71] ? __mutex_handoff+0x2b0/0x2b0
[ 18.344043][ T71] ? __dev_close_many+0x980/0x980
[ 18.344232][ T71] ? netif_close_many_and_unlock+0x21/0x2a0
[ 18.344468][ T71] ? trace_contention_end+0xd8/0x140
[ 18.344756][ T71] unregister_netdevice_many_notify+0x30a/0x1c90
[ 18.344997][ T71] ? default_device_exit_batch+0x80/0x2d0
[ 18.345185][ T71] ? mutex_is_locked+0x1c/0x50
[ 18.345375][ T71] ? dev_ingress_queue_create+0x190/0x190
[ 18.345567][ T71] ? rtnl_is_locked+0x15/0x20
[ 18.345757][ T71] ? unregister_netdevice_queue+0x6f/0x410
[ 18.345994][ T71] ? unregister_netdevice_many+0x20/0x20
[ 18.346181][ T71] ? unregister_netdevice_many+0x20/0x20
[ 18.346391][ T71] default_device_exit_batch+0x235/0x2d0
[ 18.346586][ T71] ? unregister_netdev+0x60/0x60
[ 18.346768][ T71] ops_undo_list+0x2bf/0x890
[ 18.346962][ T71] ? rtnl_net_dumpid_one+0x270/0x270
[ 18.347250][ T71] ? cleanup_net+0x2d6/0x8b0
[ 18.347441][ T71] cleanup_net+0x3b2/0x8b0
[ 18.347730][ T71] ? net_passive_dec+0x190/0x190
[ 18.347925][ T71] ? rcu_is_watching+0x12/0xb0
[ 18.348218][ T71] process_one_work+0xe35/0x1650
[ 18.348412][ T71] ? pwq_dec_nr_in_flight+0x550/0x550
[ 18.348606][ T71] ? assign_work+0x168/0x240
[ 18.348792][ T71] worker_thread+0x591/0xcf0
[ 18.348982][ T71] ? rescuer_thread+0xd10/0xd10
[ 18.349171][ T71] kthread+0x37b/0x5f0
[ 18.349316][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 18.349507][ T71] ? ret_from_fork+0x1b/0x270
[ 18.349698][ T71] ? __lock_release+0x5d/0x170
[ 18.349897][ T71] ? rcu_is_watching+0x12/0xb0
[ 18.350179][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 18.350373][ T71] ret_from_fork+0x1db/0x270
[ 18.350561][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 18.350747][ T71] ret_from_fork_asm+0x11/0x20
[ 18.351045][ T71]
[ 18.351183][ T71] Modules linked in:
[ 18.351358][ T71] CR2: 0000000000000000
[ 18.351502][ T71] ---[ end trace 0000000000000000 ]---
[ 18.351700][ T71] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 18.351947][ 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 1f 93 82 00 48 0f ba 2b 00 72 11 48 83 c4 10 31 c0 5b 5d 41 5c 41 5d 41 5e
[ 18.352718][ T71] RSP: 0018:ffffc900004c7680 EFLAGS: 00010046
[ 18.352959][ T71] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffa8849b8a
[ 18.353434][ T71] RDX: fffffbfff5aacacd RSI: 0000000000000008 RDI: ffffffffad565660
[ 18.353723][ T71] RBP: ffffc900004c76e8 R08: 0000000000000001 R09: fffffbfff5aacacc
[ 18.353999][ T71] R10: ffffffffad565667 R11: ffffc900004c7140 R12: 0000000000000000
[ 18.354283][ T71] R13: 0000000000000282 R14: ffff888005f91000 R15: dffffc0000000000
[ 18.354564][ T71] FS: 0000000000000000(0000) GS:ffff8880bfc07000(0000) knlGS:0000000000000000
[ 18.354993][ T71] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 18.355228][ T71] CR2: 0000000000000000 CR3: 000000000cd1b006 CR4: 0000000000772ef0
[ 18.355530][ T71] PKRU: 55555554
[ 18.355683][ T71] Kernel panic - not syncing: Fatal exception
[ 18.356120][ T71] Kernel Offset: 0x27200000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 18.356576][ T71] ---[ end Kernel panic - not syncing: Fatal exception ]---
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