[ 25.829024][ T12] ==================================================================
[ 25.829353][ T12] BUG: KASAN: null-ptr-deref in try_to_grab_pending+0x81/0x6c0
[ 25.829618][ T12] Write of size 8 at addr 0000000000000000 by task kworker/u16:0/12
[ 25.829882][ T12]
[ 25.829974][ T12] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 25.829978][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 25.829981][ T12] Workqueue: netns cleanup_net
[ 25.829989][ T12] Call Trace:
[ 25.829991][ T12]
[ 25.829993][ T12] dump_stack_lvl+0x82/0xc0
[ 25.829999][ T12] ? try_to_grab_pending+0x81/0x6c0
[ 25.830003][ T12] kasan_report+0xca/0x100
[ 25.830010][ T12] ? try_to_grab_pending+0x81/0x6c0
[ 25.830015][ T12] kasan_check_range+0x39/0x1b0
[ 25.830019][ T12] try_to_grab_pending+0x81/0x6c0
[ 25.830022][ T12] ? irqentry_exit+0x3b/0x80
[ 25.830029][ T12] __cancel_work+0x7c/0x260
[ 25.830032][ T12] ? enable_delayed_work+0x10/0x10
[ 25.830038][ T12] ? queue_delayed_work_on+0x53/0xa0
[ 25.830042][ T12] __cancel_work_sync+0x18/0xc0
[ 25.830046][ T12] __dev_close_many+0x1cf/0x980
[ 25.830052][ T12] ? netdev_notify_peers+0x20/0x20
[ 25.830055][ T12] ? netif_close_many+0x201/0x650
[ 25.830059][ T12] netif_close_many+0x201/0x650
[ 25.830063][ T12] ? __mutex_handoff+0x2b0/0x2b0
[ 25.830068][ T12] ? __dev_close_many+0x980/0x980
[ 25.830071][ T12] ? netif_close_many_and_unlock+0x21/0x2a0
[ 25.830074][ T12] ? trace_contention_end+0xd8/0x140
[ 25.830079][ T12] unregister_netdevice_many_notify+0x30a/0x1c90
[ 25.830083][ T12] ? default_device_exit_batch+0x80/0x2d0
[ 25.830087][ T12] ? mutex_is_locked+0x1c/0x50
[ 25.830091][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 25.830094][ T12] ? rtnl_is_locked+0x15/0x20
[ 25.830098][ T12] ? unregister_netdevice_queue+0x6f/0x410
[ 25.830101][ T12] ? unregister_netdevice_many+0x20/0x20
[ 25.830104][ T12] ? unregister_netdevice_many+0x20/0x20
[ 25.830110][ T12] default_device_exit_batch+0x235/0x2d0
[ 25.830114][ T12] ? unregister_netdev+0x60/0x60
[ 25.830120][ T12] ops_undo_list+0x2bf/0x890
[ 25.830125][ T12] ? rtnl_net_dumpid_one+0x270/0x270
[ 25.830129][ T12] ? cleanup_net+0x2d6/0x8b0
[ 25.830135][ T12] cleanup_net+0x3b2/0x8b0
[ 25.830139][ T12] ? net_passive_dec+0x190/0x190
[ 25.830144][ T12] ? rcu_is_watching+0x12/0xb0
[ 25.830150][ T12] process_one_work+0xe35/0x1650
[ 25.830156][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 25.830162][ T12] ? assign_work+0x168/0x240
[ 25.830166][ T12] worker_thread+0x591/0xcf0
[ 25.830172][ T12] ? rescuer_thread+0xd10/0xd10
[ 25.830176][ T12] kthread+0x37b/0x5f0
[ 25.830180][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 25.830183][ T12] ? ret_from_fork+0x1b/0x270
[ 25.830187][ T12] ? __lock_release+0x5d/0x170
[ 25.830190][ T12] ? rcu_is_watching+0x12/0xb0
[ 25.830194][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 25.830197][ T12] ret_from_fork+0x1db/0x270
[ 25.830200][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 25.830203][ T12] ret_from_fork_asm+0x11/0x20
[ 25.830212][ T12]
[ 25.830213][ T12] ==================================================================
[ 25.839772][ T12] Disabling lock debugging due to kernel taint
[ 25.839987][ T12] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 25.840233][ T12] #PF: supervisor write access in kernel mode
[ 25.840439][ T12] #PF: error_code(0x0002) - not-present page
[ 25.840643][ T12] PGD 0 P4D 0
[ 25.840773][ T12] Oops: Oops: 0002 [#1] SMP KASAN
[ 25.840948][ T12] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G B 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 25.841324][ T12] Tainted: [B]=BAD_PAGE
[ 25.841456][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 25.841669][ T12] Workqueue: netns cleanup_net
[ 25.841851][ T12] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 25.842069][ 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 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
[ 25.842671][ T12] RSP: 0018:ffffc900000c7680 EFLAGS: 00010046
[ 25.842887][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaee49b8a
[ 25.843137][ T12] RDX: fffffbfff676cacd RSI: 0000000000000008 RDI: ffffffffb3b65660
[ 25.843387][ T12] RBP: ffffc900000c76e8 R08: 0000000000000001 R09: fffffbfff676cacc
[ 25.843636][ T12] R10: ffffffffb3b65667 R11: ffffc900000c7140 R12: 0000000000000000
[ 25.843884][ T12] R13: 0000000000000282 R14: ffff888008009000 R15: dffffc0000000000
[ 25.844134][ T12] FS: 0000000000000000(0000) GS:ffff8880b9587000(0000) knlGS:0000000000000000
[ 25.844427][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 25.844639][ T12] CR2: 0000000000000000 CR3: 000000004a949006 CR4: 0000000000772ef0
[ 25.844889][ T12] PKRU: 55555554
[ 25.845018][ T12] Call Trace:
[ 25.845175][ T12]
[ 25.845263][ T12] ? irqentry_exit+0x3b/0x80
[ 25.845439][ T12] __cancel_work+0x7c/0x260
[ 25.845611][ T12] ? enable_delayed_work+0x10/0x10
[ 25.845788][ T12] ? queue_delayed_work_on+0x53/0xa0
[ 25.845976][ T12] __cancel_work_sync+0x18/0xc0
[ 25.846175][ T12] __dev_close_many+0x1cf/0x980
[ 25.846346][ T12] ? netdev_notify_peers+0x20/0x20
[ 25.846515][ T12] ? netif_close_many+0x201/0x650
[ 25.846681][ T12] netif_close_many+0x201/0x650
[ 25.846846][ T12] ? __mutex_handoff+0x2b0/0x2b0
[ 25.847037][ T12] ? __dev_close_many+0x980/0x980
[ 25.847223][ T12] ? netif_close_many_and_unlock+0x21/0x2a0
[ 25.847431][ T12] ? trace_contention_end+0xd8/0x140
[ 25.847605][ T12] unregister_netdevice_many_notify+0x30a/0x1c90
[ 25.847811][ T12] ? default_device_exit_batch+0x80/0x2d0
[ 25.847978][ T12] ? mutex_is_locked+0x1c/0x50
[ 25.848184][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 25.848358][ T12] ? rtnl_is_locked+0x15/0x20
[ 25.848527][ T12] ? unregister_netdevice_queue+0x6f/0x410
[ 25.848732][ T12] ? unregister_netdevice_many+0x20/0x20
[ 25.848914][ T12] ? unregister_netdevice_many+0x20/0x20
[ 25.849083][ T12] default_device_exit_batch+0x235/0x2d0
[ 25.849253][ T12] ? unregister_netdev+0x60/0x60
[ 25.849421][ T12] ops_undo_list+0x2bf/0x890
[ 25.849590][ T12] ? rtnl_net_dumpid_one+0x270/0x270
[ 25.849754][ T12] ? cleanup_net+0x2d6/0x8b0
[ 25.849926][ T12] cleanup_net+0x3b2/0x8b0
[ 25.850097][ T12] ? net_passive_dec+0x190/0x190
[ 25.850264][ T12] ? rcu_is_watching+0x12/0xb0
[ 25.850431][ T12] process_one_work+0xe35/0x1650
[ 25.850602][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 25.850772][ T12] ? assign_work+0x168/0x240
[ 25.850941][ T12] worker_thread+0x591/0xcf0
[ 25.851132][ T12] ? rescuer_thread+0xd10/0xd10
[ 25.851303][ T12] kthread+0x37b/0x5f0
[ 25.851430][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 25.851603][ T12] ? ret_from_fork+0x1b/0x270
[ 25.851778][ T12] ? __lock_release+0x5d/0x170
[ 25.851971][ T12] ? rcu_is_watching+0x12/0xb0
[ 25.852139][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 25.852309][ T12] ret_from_fork+0x1db/0x270
[ 25.852480][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 25.852671][ T12] ret_from_fork_asm+0x11/0x20
[ 25.852842][ T12]
[ 25.852970][ T12] Modules linked in:
[ 25.853118][ T12] CR2: 0000000000000000
[ 25.853247][ T12] ---[ end trace 0000000000000000 ]---
[ 25.853437][ T12] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 25.853671][ 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 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
[ 25.854267][ T12] RSP: 0018:ffffc900000c7680 EFLAGS: 00010046
[ 25.854475][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaee49b8a
[ 25.854754][ T12] RDX: fffffbfff676cacd RSI: 0000000000000008 RDI: ffffffffb3b65660
[ 25.855001][ T12] RBP: ffffc900000c76e8 R08: 0000000000000001 R09: fffffbfff676cacc
[ 25.855253][ T12] R10: ffffffffb3b65667 R11: ffffc900000c7140 R12: 0000000000000000
[ 25.855500][ T12] R13: 0000000000000282 R14: ffff888008009000 R15: dffffc0000000000
[ 25.855765][ T12] FS: 0000000000000000(0000) GS:ffff8880b9587000(0000) knlGS:0000000000000000
[ 25.856061][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 25.856278][ T12] CR2: 0000000000000000 CR3: 000000004a949006 CR4: 0000000000772ef0
[ 25.856528][ T12] PKRU: 55555554
[ 25.856671][ T12] Kernel panic - not syncing: Fatal exception
[ 25.856973][ T12] Kernel Offset: 0x2d800000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 25.857356][ T12] ---[ end Kernel panic - not syncing: Fatal exception ]---
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