[ 24.876021][ T68] ==================================================================
[ 24.876406][ T68] BUG: KASAN: null-ptr-deref in try_to_grab_pending+0x81/0x6c0
[ 24.876701][ T68] Write of size 8 at addr 0000000000000000 by task kworker/u16:1/68
[ 24.876984][ T68]
[ 24.877089][ T68] CPU: 0 UID: 0 PID: 68 Comm: kworker/u16:1 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 24.877095][ T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.877100][ T68] Workqueue: netns cleanup_net
[ 24.877111][ T68] Call Trace:
[ 24.877113][ T68]
[ 24.877117][ T68] dump_stack_lvl+0x82/0xc0
[ 24.877128][ T68] ? try_to_grab_pending+0x81/0x6c0
[ 24.877131][ T68] kasan_report+0xca/0x100
[ 24.877140][ T68] ? try_to_grab_pending+0x81/0x6c0
[ 24.877146][ T68] kasan_check_range+0x39/0x1b0
[ 24.877150][ T68] try_to_grab_pending+0x81/0x6c0
[ 24.877155][ T68] __cancel_work+0x7c/0x260
[ 24.877158][ T68] ? enable_delayed_work+0x10/0x10
[ 24.877163][ T68] ? qdisc_destroy+0x50/0x50
[ 24.877173][ T68] __cancel_work_sync+0x18/0xc0
[ 24.877178][ T68] __dev_close_many+0x1cf/0x980
[ 24.877183][ T68] ? netdev_notify_peers+0x20/0x20
[ 24.877187][ T68] ? __mutex_lock+0x19f/0x1190
[ 24.877196][ T68] netif_close_many+0x201/0x650
[ 24.877200][ T68] ? ww_mutex_lock+0x160/0x160
[ 24.877204][ T68] ? __dev_close_many+0x980/0x980
[ 24.877207][ T68] ? __mutex_handoff+0x2b0/0x2b0
[ 24.877216][ T68] netif_close_many_and_unlock+0x21/0x2a0
[ 24.877220][ T68] unregister_netdevice_many_notify+0xeed/0x1c90
[ 24.877225][ T68] ? default_device_exit_batch+0x80/0x2d0
[ 24.877230][ T68] ? rtnl_is_locked+0x15/0x20
[ 24.877235][ T68] ? dev_ingress_queue_create+0x190/0x190
[ 24.877238][ T68] ? rtnl_is_locked+0x15/0x20
[ 24.877240][ T68] ? unregister_netdevice_queue+0x6f/0x410
[ 24.877244][ T68] ? unregister_netdevice_many+0x20/0x20
[ 24.877250][ T68] default_device_exit_batch+0x235/0x2d0
[ 24.877254][ T68] ? unregister_netdev+0x60/0x60
[ 24.877260][ T68] ops_undo_list+0x2bf/0x890
[ 24.877266][ T68] ? rtnl_net_dumpid_one+0x270/0x270
[ 24.877269][ T68] ? cleanup_net+0x2d6/0x8b0
[ 24.877275][ T68] cleanup_net+0x3b2/0x8b0
[ 24.877280][ T68] ? net_passive_dec+0x190/0x190
[ 24.877284][ T68] ? rcu_is_watching+0x12/0xb0
[ 24.877291][ T68] process_one_work+0xe35/0x1650
[ 24.877298][ T68] ? pwq_dec_nr_in_flight+0x550/0x550
[ 24.877303][ T68] ? assign_work+0x168/0x240
[ 24.877308][ T68] worker_thread+0x591/0xcf0
[ 24.877314][ T68] ? rescuer_thread+0xd10/0xd10
[ 24.877318][ T68] kthread+0x37b/0x5f0
[ 24.877322][ T68] ? kthread_is_per_cpu+0xc0/0xc0
[ 24.877325][ T68] ? ret_from_fork+0x1b/0x270
[ 24.877332][ T68] ? __lock_release+0x5d/0x170
[ 24.877337][ T68] ? rcu_is_watching+0x12/0xb0
[ 24.877340][ T68] ? kthread_is_per_cpu+0xc0/0xc0
[ 24.877345][ T68] ret_from_fork+0x1db/0x270
[ 24.877348][ T68] ? kthread_is_per_cpu+0xc0/0xc0
[ 24.877353][ T68] ret_from_fork_asm+0x11/0x20
[ 24.877366][ T68]
[ 24.877367][ T68] ==================================================================
[ 24.887586][ T68] Disabling lock debugging due to kernel taint
[ 24.887840][ T68] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 24.888121][ T68] #PF: supervisor write access in kernel mode
[ 24.888360][ T68] #PF: error_code(0x0002) - not-present page
[ 24.888593][ T68] PGD 0 P4D 0
[ 24.888744][ T68] Oops: Oops: 0002 [#1] SMP KASAN
[ 24.888939][ T68] CPU: 0 UID: 0 PID: 68 Comm: kworker/u16:1 Tainted: G B 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 24.889365][ T68] Tainted: [B]=BAD_PAGE
[ 24.889510][ T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.889749][ T68] Workqueue: netns cleanup_net
[ 24.889951][ T68] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 24.890207][ T68] 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
[ 24.890882][ T68] RSP: 0018:ffffc90000497630 EFLAGS: 00010046
[ 24.891127][ T68] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffa6e49b8a
[ 24.891413][ T68] RDX: fffffbfff576cacd RSI: 0000000000000008 RDI: ffffffffabb65660
[ 24.891701][ T68] RBP: ffffc90000497698 R08: 0000000000000001 R09: fffffbfff576cacc
[ 24.891981][ T68] R10: ffffffffabb65667 R11: ffffc90000497100 R12: 0000000000000000
[ 24.892266][ T68] R13: 0000000000000286 R14: ffff88800bdfc000 R15: dffffc0000000000
[ 24.892550][ T68] FS: 0000000000000000(0000) GS:ffff8880bb107000(0000) knlGS:0000000000000000
[ 24.892888][ T68] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 24.893146][ T68] CR2: 0000000000000000 CR3: 0000000073b49003 CR4: 0000000000772ef0
[ 24.893444][ T68] PKRU: 55555554
[ 24.893595][ T68] Call Trace:
[ 24.893739][ T68]
[ 24.893839][ T68] __cancel_work+0x7c/0x260
[ 24.894030][ T68] ? enable_delayed_work+0x10/0x10
[ 24.894231][ T68] ? qdisc_destroy+0x50/0x50
[ 24.894439][ T68] __cancel_work_sync+0x18/0xc0
[ 24.894628][ T68] __dev_close_many+0x1cf/0x980
[ 24.894817][ T68] ? netdev_notify_peers+0x20/0x20
[ 24.895006][ T68] ? __mutex_lock+0x19f/0x1190
[ 24.895206][ T68] netif_close_many+0x201/0x650
[ 24.895402][ T68] ? ww_mutex_lock+0x160/0x160
[ 24.895696][ T68] ? __dev_close_many+0x980/0x980
[ 24.895885][ T68] ? __mutex_handoff+0x2b0/0x2b0
[ 24.896075][ T68] netif_close_many_and_unlock+0x21/0x2a0
[ 24.896273][ T68] unregister_netdevice_many_notify+0xeed/0x1c90
[ 24.896608][ T68] ? default_device_exit_batch+0x80/0x2d0
[ 24.896792][ T68] ? rtnl_is_locked+0x15/0x20
[ 24.896976][ T68] ? dev_ingress_queue_create+0x190/0x190
[ 24.897190][ T68] ? rtnl_is_locked+0x15/0x20
[ 24.897499][ T68] ? unregister_netdevice_queue+0x6f/0x410
[ 24.897728][ T68] ? unregister_netdevice_many+0x20/0x20
[ 24.897933][ T68] default_device_exit_batch+0x235/0x2d0
[ 24.898123][ T68] ? unregister_netdev+0x60/0x60
[ 24.898315][ T68] ops_undo_list+0x2bf/0x890
[ 24.898504][ T68] ? rtnl_net_dumpid_one+0x270/0x270
[ 24.898693][ T68] ? cleanup_net+0x2d6/0x8b0
[ 24.898883][ T68] cleanup_net+0x3b2/0x8b0
[ 24.899171][ T68] ? net_passive_dec+0x190/0x190
[ 24.899367][ T68] ? rcu_is_watching+0x12/0xb0
[ 24.899560][ T68] process_one_work+0xe35/0x1650
[ 24.899748][ T68] ? pwq_dec_nr_in_flight+0x550/0x550
[ 24.899935][ T68] ? assign_work+0x168/0x240
[ 24.900122][ T68] worker_thread+0x591/0xcf0
[ 24.900314][ T68] ? rescuer_thread+0xd10/0xd10
[ 24.900506][ T68] kthread+0x37b/0x5f0
[ 24.900750][ T68] ? kthread_is_per_cpu+0xc0/0xc0
[ 24.900939][ T68] ? ret_from_fork+0x1b/0x270
[ 24.901131][ T68] ? __lock_release+0x5d/0x170
[ 24.901321][ T68] ? rcu_is_watching+0x12/0xb0
[ 24.901608][ T68] ? kthread_is_per_cpu+0xc0/0xc0
[ 24.901795][ T68] ret_from_fork+0x1db/0x270
[ 24.901986][ T68] ? kthread_is_per_cpu+0xc0/0xc0
[ 24.902169][ T68] ret_from_fork_asm+0x11/0x20
[ 24.902368][ T68]
[ 24.902512][ T68] Modules linked in: sch_fq
[ 24.902714][ T68] CR2: 0000000000000000
[ 24.902858][ T68] ---[ end trace 0000000000000000 ]---
[ 24.903151][ T68] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 24.903401][ T68] 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
[ 24.904165][ T68] RSP: 0018:ffffc90000497630 EFLAGS: 00010046
[ 24.904409][ T68] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffa6e49b8a
[ 24.904685][ T68] RDX: fffffbfff576cacd RSI: 0000000000000008 RDI: ffffffffabb65660
[ 24.905061][ T68] RBP: ffffc90000497698 R08: 0000000000000001 R09: fffffbfff576cacc
[ 24.905338][ T68] R10: ffffffffabb65667 R11: ffffc90000497100 R12: 0000000000000000
[ 24.905727][ T68] R13: 0000000000000286 R14: ffff88800bdfc000 R15: dffffc0000000000
[ 24.906001][ T68] FS: 0000000000000000(0000) GS:ffff8880bb107000(0000) knlGS:0000000000000000
[ 24.906337][ T68] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 24.906676][ T68] CR2: 0000000000000000 CR3: 0000000073b49003 CR4: 0000000000772ef0
[ 24.906956][ T68] PKRU: 55555554
[ 24.907106][ T68] Kernel panic - not syncing: Fatal exception
[ 24.907542][ T68] Kernel Offset: 0x25800000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 24.907997][ T68] ---[ end Kernel panic - not syncing: Fatal exception ]---
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