[ 28.156988][ T12] ==================================================================
[ 28.157295][ T12] BUG: KASAN: null-ptr-deref in try_to_grab_pending+0x81/0x6c0
[ 28.157562][ T12] Write of size 8 at addr 0000000000000000 by task kworker/u16:0/12
[ 28.157861][ T12]
[ 28.157956][ T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 28.157961][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 28.157964][ T12] Workqueue: netns cleanup_net
[ 28.157973][ T12] Call Trace:
[ 28.157975][ T12]
[ 28.157978][ T12] dump_stack_lvl+0x82/0xc0
[ 28.157984][ T12] ? try_to_grab_pending+0x81/0x6c0
[ 28.157988][ T12] kasan_report+0xca/0x100
[ 28.157995][ T12] ? try_to_grab_pending+0x81/0x6c0
[ 28.158001][ T12] kasan_check_range+0x39/0x1b0
[ 28.158005][ T12] try_to_grab_pending+0x81/0x6c0
[ 28.158009][ T12] __cancel_work+0x7c/0x260
[ 28.158013][ T12] ? enable_delayed_work+0x10/0x10
[ 28.158018][ T12] ? qdisc_destroy+0x50/0x50
[ 28.158025][ T12] __cancel_work_sync+0x18/0xc0
[ 28.158029][ T12] __dev_close_many+0x1cf/0x980
[ 28.158034][ T12] ? netdev_notify_peers+0x20/0x20
[ 28.158037][ T12] ? netif_close_many+0x201/0x650
[ 28.158041][ T12] netif_close_many+0x201/0x650
[ 28.158044][ T12] ? __mutex_handoff+0x2b0/0x2b0
[ 28.158050][ T12] ? __dev_close_many+0x980/0x980
[ 28.158053][ T12] ? netif_close_many_and_unlock+0x21/0x2a0
[ 28.158056][ T12] ? trace_contention_end+0xd8/0x140
[ 28.158060][ T12] unregister_netdevice_many_notify+0x30a/0x1c90
[ 28.158064][ T12] ? default_device_exit_batch+0x80/0x2d0
[ 28.158069][ T12] ? rtnl_is_locked+0x15/0x20
[ 28.158073][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 28.158076][ T12] ? rtnl_is_locked+0x15/0x20
[ 28.158078][ T12] ? unregister_netdevice_queue+0x6f/0x410
[ 28.158082][ T12] ? unregister_netdevice_many+0x20/0x20
[ 28.158088][ T12] default_device_exit_batch+0x235/0x2d0
[ 28.158092][ T12] ? unregister_netdev+0x60/0x60
[ 28.158098][ T12] ops_undo_list+0x2bf/0x890
[ 28.158103][ T12] ? rtnl_net_dumpid_one+0x270/0x270
[ 28.158107][ T12] ? cleanup_net+0x2d6/0x8b0
[ 28.158117][ T12] cleanup_net+0x3b2/0x8b0
[ 28.158123][ T12] ? net_passive_dec+0x190/0x190
[ 28.158130][ T12] ? rcu_is_watching+0x12/0xb0
[ 28.158136][ T12] process_one_work+0xe35/0x1650
[ 28.158142][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 28.158148][ T12] ? assign_work+0x168/0x240
[ 28.158153][ T12] worker_thread+0x591/0xcf0
[ 28.158158][ T12] ? rescuer_thread+0xd10/0xd10
[ 28.158162][ T12] kthread+0x37b/0x5f0
[ 28.158166][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 28.158168][ T12] ? ret_from_fork+0x1b/0x270
[ 28.158172][ T12] ? __lock_release+0x5d/0x170
[ 28.158176][ T12] ? rcu_is_watching+0x12/0xb0
[ 28.158179][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 28.158183][ T12] ret_from_fork+0x1db/0x270
[ 28.158185][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 28.158188][ T12] ret_from_fork_asm+0x11/0x20
[ 28.158197][ T12]
[ 28.158198][ T12] ==================================================================
[ 28.167710][ T12] Disabling lock debugging due to kernel taint
[ 28.167934][ T12] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 28.168202][ T12] #PF: supervisor write access in kernel mode
[ 28.168415][ T12] #PF: error_code(0x0002) - not-present page
[ 28.168626][ T12] PGD 0 P4D 0
[ 28.168767][ T12] Oops: Oops: 0002 [#1] SMP KASAN
[ 28.168945][ T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G B 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 28.169337][ T12] Tainted: [B]=BAD_PAGE
[ 28.169470][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 28.169690][ T12] Workqueue: netns cleanup_net
[ 28.169885][ T12] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 28.170106][ 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
[ 28.170734][ T12] RSP: 0018:ffffc900000c7680 EFLAGS: 00010046
[ 28.170951][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff89849b8a
[ 28.171217][ T12] RDX: fffffbfff1cacacd RSI: 0000000000000008 RDI: ffffffff8e565660
[ 28.171477][ T12] RBP: ffffc900000c76e8 R08: 0000000000000001 R09: fffffbfff1cacacc
[ 28.171748][ T12] R10: ffffffff8e565667 R11: ffffc900000c7140 R12: 0000000000000000
[ 28.172019][ T12] R13: 0000000000000282 R14: ffff8880092f9000 R15: dffffc0000000000
[ 28.172302][ T12] FS: 0000000000000000(0000) GS:ffff8880deb07000(0000) knlGS:0000000000000000
[ 28.172616][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 28.172855][ T12] CR2: 0000000000000000 CR3: 0000000065f49004 CR4: 0000000000772ef0
[ 28.173134][ T12] PKRU: 55555554
[ 28.173270][ T12] Call Trace:
[ 28.173402][ T12]
[ 28.173501][ T12] __cancel_work+0x7c/0x260
[ 28.173713][ T12] ? enable_delayed_work+0x10/0x10
[ 28.173884][ T12] ? qdisc_destroy+0x50/0x50
[ 28.174054][ T12] __cancel_work_sync+0x18/0xc0
[ 28.174234][ T12] __dev_close_many+0x1cf/0x980
[ 28.174403][ T12] ? netdev_notify_peers+0x20/0x20
[ 28.174575][ T12] ? netif_close_many+0x201/0x650
[ 28.174766][ T12] netif_close_many+0x201/0x650
[ 28.174933][ T12] ? __mutex_handoff+0x2b0/0x2b0
[ 28.175103][ T12] ? __dev_close_many+0x980/0x980
[ 28.175280][ T12] ? netif_close_many_and_unlock+0x21/0x2a0
[ 28.175487][ T12] ? trace_contention_end+0xd8/0x140
[ 28.175664][ T12] unregister_netdevice_many_notify+0x30a/0x1c90
[ 28.175881][ T12] ? default_device_exit_batch+0x80/0x2d0
[ 28.176052][ T12] ? rtnl_is_locked+0x15/0x20
[ 28.176236][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 28.176406][ T12] ? rtnl_is_locked+0x15/0x20
[ 28.176571][ T12] ? unregister_netdevice_queue+0x6f/0x410
[ 28.176828][ T12] ? unregister_netdevice_many+0x20/0x20
[ 28.177015][ T12] default_device_exit_batch+0x235/0x2d0
[ 28.177201][ T12] ? unregister_netdev+0x60/0x60
[ 28.177378][ T12] ops_undo_list+0x2bf/0x890
[ 28.177560][ T12] ? rtnl_net_dumpid_one+0x270/0x270
[ 28.177753][ T12] ? cleanup_net+0x2d6/0x8b0
[ 28.177936][ T12] cleanup_net+0x3b2/0x8b0
[ 28.178118][ T12] ? net_passive_dec+0x190/0x190
[ 28.178300][ T12] ? rcu_is_watching+0x12/0xb0
[ 28.178484][ T12] process_one_work+0xe35/0x1650
[ 28.178667][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 28.178872][ T12] ? assign_work+0x168/0x240
[ 28.179050][ T12] worker_thread+0x591/0xcf0
[ 28.179236][ T12] ? rescuer_thread+0xd10/0xd10
[ 28.179410][ T12] kthread+0x37b/0x5f0
[ 28.179544][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 28.179721][ T12] ? ret_from_fork+0x1b/0x270
[ 28.179895][ T12] ? __lock_release+0x5d/0x170
[ 28.180068][ T12] ? rcu_is_watching+0x12/0xb0
[ 28.180251][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 28.180426][ T12] ret_from_fork+0x1db/0x270
[ 28.180598][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 28.180773][ T12] ret_from_fork_asm+0x11/0x20
[ 28.180957][ T12]
[ 28.181090][ T12] Modules linked in:
[ 28.181232][ T12] CR2: 0000000000000000
[ 28.181365][ T12] ---[ end trace 0000000000000000 ]---
[ 28.181547][ T12] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 28.181773][ 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
[ 28.182392][ T12] RSP: 0018:ffffc900000c7680 EFLAGS: 00010046
[ 28.182609][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff89849b8a
[ 28.182866][ T12] RDX: fffffbfff1cacacd RSI: 0000000000000008 RDI: ffffffff8e565660
[ 28.183133][ T12] RBP: ffffc900000c76e8 R08: 0000000000000001 R09: fffffbfff1cacacc
[ 28.183387][ T12] R10: ffffffff8e565667 R11: ffffc900000c7140 R12: 0000000000000000
[ 28.183648][ T12] R13: 0000000000000282 R14: ffff8880092f9000 R15: dffffc0000000000
[ 28.183908][ T12] FS: 0000000000000000(0000) GS:ffff8880deb07000(0000) knlGS:0000000000000000
[ 28.184213][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 28.184437][ T12] CR2: 0000000000000000 CR3: 0000000065f49004 CR4: 0000000000772ef0
[ 28.184698][ T12] PKRU: 55555554
[ 28.184839][ T12] Kernel panic - not syncing: Fatal exception
[ 28.185156][ T12] Kernel Offset: 0x8200000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 28.185561][ T12] ---[ end Kernel panic - not syncing: Fatal exception ]---
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