[ 21.051991][ T71] ==================================================================
[ 21.052382][ T71] BUG: KASAN: null-ptr-deref in try_to_grab_pending+0x81/0x6c0
[ 21.052697][ T71] Write of size 8 at addr 0000000000000000 by task kworker/u16:1/71
[ 21.052977][ T71]
[ 21.053071][ T71] CPU: 3 UID: 0 PID: 71 Comm: kworker/u16:1 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 21.053077][ T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 21.053083][ T71] Workqueue: netns cleanup_net
[ 21.053104][ T71] Call Trace:
[ 21.053110][ T71]
[ 21.053114][ T71] dump_stack_lvl+0x82/0xc0
[ 21.053129][ T71] ? try_to_grab_pending+0x81/0x6c0
[ 21.053134][ T71] kasan_report+0xca/0x100
[ 21.053148][ T71] ? try_to_grab_pending+0x81/0x6c0
[ 21.053154][ T71] kasan_check_range+0x39/0x1b0
[ 21.053158][ T71] try_to_grab_pending+0x81/0x6c0
[ 21.053163][ T71] __cancel_work+0x7c/0x260
[ 21.053166][ T71] ? enable_delayed_work+0x10/0x10
[ 21.053171][ T71] ? qdisc_destroy+0x50/0x50
[ 21.053183][ T71] __cancel_work_sync+0x18/0xc0
[ 21.053187][ T71] __dev_close_many+0x1cf/0x980
[ 21.053195][ T71] ? netdev_notify_peers+0x20/0x20
[ 21.053200][ T71] ? netif_close_many+0x201/0x650
[ 21.053207][ T71] netif_close_many+0x201/0x650
[ 21.053212][ T71] ? __mutex_handoff+0x2b0/0x2b0
[ 21.053221][ T71] ? __dev_close_many+0x980/0x980
[ 21.053225][ T71] ? netif_close_many_and_unlock+0x21/0x2a0
[ 21.053228][ T71] ? trace_contention_end+0xd8/0x140
[ 21.053232][ T71] unregister_netdevice_many_notify+0x30a/0x1c90
[ 21.053237][ T71] ? default_device_exit_batch+0x80/0x2d0
[ 21.053242][ T71] ? rtnl_is_locked+0x15/0x20
[ 21.053248][ T71] ? dev_ingress_queue_create+0x190/0x190
[ 21.053251][ T71] ? rtnl_is_locked+0x15/0x20
[ 21.053254][ T71] ? unregister_netdevice_queue+0x6f/0x410
[ 21.053257][ T71] ? unregister_netdevice_many+0x20/0x20
[ 21.053263][ T71] default_device_exit_batch+0x235/0x2d0
[ 21.053267][ T71] ? unregister_netdev+0x60/0x60
[ 21.053274][ T71] ops_undo_list+0x2bf/0x890
[ 21.053280][ T71] ? rtnl_net_dumpid_one+0x270/0x270
[ 21.053283][ T71] ? cleanup_net+0x2d6/0x8b0
[ 21.053289][ T71] cleanup_net+0x3b2/0x8b0
[ 21.053294][ T71] ? net_passive_dec+0x190/0x190
[ 21.053299][ T71] ? rcu_is_watching+0x12/0xb0
[ 21.053307][ T71] process_one_work+0xe35/0x1650
[ 21.053314][ T71] ? pwq_dec_nr_in_flight+0x550/0x550
[ 21.053320][ T71] ? assign_work+0x168/0x240
[ 21.053324][ T71] worker_thread+0x591/0xcf0
[ 21.053330][ T71] ? rescuer_thread+0xd10/0xd10
[ 21.053334][ T71] kthread+0x37b/0x5f0
[ 21.053341][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 21.053343][ T71] ? ret_from_fork+0x1b/0x270
[ 21.053355][ T71] ? __lock_release+0x5d/0x170
[ 21.053358][ T71] ? rcu_is_watching+0x12/0xb0
[ 21.053361][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 21.053365][ T71] ret_from_fork+0x1db/0x270
[ 21.053367][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 21.053370][ T71] ret_from_fork_asm+0x11/0x20
[ 21.053386][ T71]
[ 21.053387][ T71] ==================================================================
[ 21.062783][ T71] Disabling lock debugging due to kernel taint
[ 21.063009][ T71] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 21.063262][ T71] #PF: supervisor write access in kernel mode
[ 21.063465][ T71] #PF: error_code(0x0002) - not-present page
[ 21.063670][ T71] PGD 0 P4D 0
[ 21.063801][ T71] Oops: Oops: 0002 [#1] SMP KASAN
[ 21.063989][ T71] CPU: 3 UID: 0 PID: 71 Comm: kworker/u16:1 Tainted: G B 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 21.064382][ T71] Tainted: [B]=BAD_PAGE
[ 21.064509][ T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 21.064712][ T71] Workqueue: netns cleanup_net
[ 21.064888][ T71] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 21.065180][ 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
[ 21.065782][ T71] RSP: 0018:ffffc900004c7680 EFLAGS: 00010046
[ 21.065988][ T71] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff88a49b8a
[ 21.066248][ T71] RDX: fffffbfff1aecacd RSI: 0000000000000008 RDI: ffffffff8d765660
[ 21.066502][ T71] RBP: ffffc900004c76e8 R08: 0000000000000001 R09: fffffbfff1aecacc
[ 21.066759][ T71] R10: ffffffff8d765667 R11: ffffc900004c7140 R12: 0000000000000000
[ 21.067005][ T71] R13: 0000000000000282 R14: ffff888008829000 R15: dffffc0000000000
[ 21.067259][ T71] FS: 0000000000000000(0000) GS:ffff8880dfa87000(0000) knlGS:0000000000000000
[ 21.067551][ T71] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 21.067759][ T71] CR2: 0000000000000000 CR3: 0000000035349001 CR4: 0000000000772ef0
[ 21.068004][ T71] PKRU: 55555554
[ 21.068137][ T71] Call Trace:
[ 21.068272][ T71]
[ 21.068365][ T71] __cancel_work+0x7c/0x260
[ 21.068543][ T71] ? enable_delayed_work+0x10/0x10
[ 21.068724][ T71] ? qdisc_destroy+0x50/0x50
[ 21.068897][ T71] __cancel_work_sync+0x18/0xc0
[ 21.069064][ T71] __dev_close_many+0x1cf/0x980
[ 21.069248][ T71] ? netdev_notify_peers+0x20/0x20
[ 21.069418][ T71] ? netif_close_many+0x201/0x650
[ 21.069587][ T71] netif_close_many+0x201/0x650
[ 21.069756][ T71] ? __mutex_handoff+0x2b0/0x2b0
[ 21.069928][ T71] ? __dev_close_many+0x980/0x980
[ 21.070099][ T71] ? netif_close_many_and_unlock+0x21/0x2a0
[ 21.070325][ T71] ? trace_contention_end+0xd8/0x140
[ 21.070495][ T71] unregister_netdevice_many_notify+0x30a/0x1c90
[ 21.070698][ T71] ? default_device_exit_batch+0x80/0x2d0
[ 21.070860][ T71] ? rtnl_is_locked+0x15/0x20
[ 21.071022][ T71] ? dev_ingress_queue_create+0x190/0x190
[ 21.071209][ T71] ? rtnl_is_locked+0x15/0x20
[ 21.071409][ T71] ? unregister_netdevice_queue+0x6f/0x410
[ 21.071610][ T71] ? unregister_netdevice_many+0x20/0x20
[ 21.071781][ T71] default_device_exit_batch+0x235/0x2d0
[ 21.071943][ T71] ? unregister_netdev+0x60/0x60
[ 21.072105][ T71] ops_undo_list+0x2bf/0x890
[ 21.072294][ T71] ? rtnl_net_dumpid_one+0x270/0x270
[ 21.072461][ T71] ? cleanup_net+0x2d6/0x8b0
[ 21.072623][ T71] cleanup_net+0x3b2/0x8b0
[ 21.072790][ T71] ? net_passive_dec+0x190/0x190
[ 21.072952][ T71] ? rcu_is_watching+0x12/0xb0
[ 21.073122][ T71] process_one_work+0xe35/0x1650
[ 21.073310][ T71] ? pwq_dec_nr_in_flight+0x550/0x550
[ 21.073475][ T71] ? assign_work+0x168/0x240
[ 21.073637][ T71] worker_thread+0x591/0xcf0
[ 21.073828][ T71] ? rescuer_thread+0xd10/0xd10
[ 21.074005][ T71] kthread+0x37b/0x5f0
[ 21.074138][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 21.074309][ T71] ? ret_from_fork+0x1b/0x270
[ 21.074480][ T71] ? __lock_release+0x5d/0x170
[ 21.074662][ T71] ? rcu_is_watching+0x12/0xb0
[ 21.074833][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 21.074994][ T71] ret_from_fork+0x1db/0x270
[ 21.075170][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 21.075337][ T71] ret_from_fork_asm+0x11/0x20
[ 21.075525][ T71]
[ 21.075649][ T71] Modules linked in: vxlan
[ 21.075839][ T71] CR2: 0000000000000000
[ 21.075965][ T71] ---[ end trace 0000000000000000 ]---
[ 21.076137][ T71] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 21.076357][ 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
[ 21.077030][ T71] RSP: 0018:ffffc900004c7680 EFLAGS: 00010046
[ 21.077384][ T71] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff88a49b8a
[ 21.077724][ T71] RDX: fffffbfff1aecacd RSI: 0000000000000008 RDI: ffffffff8d765660
[ 21.077979][ T71] RBP: ffffc900004c76e8 R08: 0000000000000001 R09: fffffbfff1aecacc
[ 21.078234][ T71] R10: ffffffff8d765667 R11: ffffc900004c7140 R12: 0000000000000000
[ 21.078567][ T71] R13: 0000000000000282 R14: ffff888008829000 R15: dffffc0000000000
[ 21.078839][ T71] FS: 0000000000000000(0000) GS:ffff8880dfa87000(0000) knlGS:0000000000000000
[ 21.079273][ T71] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 21.079475][ T71] CR2: 0000000000000000 CR3: 0000000035349001 CR4: 0000000000772ef0
[ 21.079743][ T71] PKRU: 55555554
[ 21.079869][ T71] Kernel panic - not syncing: Fatal exception
[ 21.080276][ T71] Kernel Offset: 0x7400000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 21.080671][ T71] ---[ end Kernel panic - not syncing: Fatal exception ]---
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