[ 26.589128][ T12] ==================================================================
[ 26.589561][ T12] BUG: KASAN: null-ptr-deref in try_to_grab_pending+0x81/0x6c0
[ 26.589944][ T12] Write of size 8 at addr 0000000000000000 by task kworker/u16:0/12
[ 26.590344][ T12]
[ 26.590469][ T12] CPU: 2 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 26.590478][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 26.590481][ T12] Workqueue: netns cleanup_net
[ 26.590497][ T12] Call Trace:
[ 26.590500][ T12]
[ 26.590503][ T12] dump_stack_lvl+0x82/0xc0
[ 26.590515][ T12] ? try_to_grab_pending+0x81/0x6c0
[ 26.590519][ T12] kasan_report+0xca/0x100
[ 26.590529][ T12] ? try_to_grab_pending+0x81/0x6c0
[ 26.590538][ T12] kasan_check_range+0x39/0x1b0
[ 26.590543][ T12] try_to_grab_pending+0x81/0x6c0
[ 26.590551][ T12] __cancel_work+0x7c/0x260
[ 26.590556][ T12] ? enable_delayed_work+0x10/0x10
[ 26.590563][ T12] ? qdisc_destroy+0x50/0x50
[ 26.590572][ T12] __cancel_work_sync+0x18/0xc0
[ 26.590580][ T12] __dev_close_many+0x1ce/0x810
[ 26.590590][ T12] ? netdev_notify_peers+0x20/0x20
[ 26.590597][ T12] ? netif_close_many+0x201/0x650
[ 26.590604][ T12] netif_close_many+0x201/0x650
[ 26.590609][ T12] ? __mutex_handoff+0x2b0/0x2b0
[ 26.590622][ T12] ? __dev_close_many+0x810/0x810
[ 26.590628][ T12] ? netif_close_many_and_unlock+0x21/0x2a0
[ 26.590635][ T12] unregister_netdevice_many_notify+0x305/0x1b30
[ 26.590641][ T12] ? find_held_lock+0x2b/0x80
[ 26.590649][ T12] ? rtnl_is_locked+0x15/0x20
[ 26.590655][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 26.590659][ T12] ? rtnl_is_locked+0x15/0x20
[ 26.590662][ T12] ? unregister_netdevice_queue+0x6f/0x410
[ 26.590665][ T12] ? lockdep_hardirqs_on+0x7c/0x110
[ 26.590672][ T12] ? unregister_netdevice_many+0x20/0x20
[ 26.590681][ T12] default_device_exit_batch+0x235/0x2d0
[ 26.590686][ T12] ? unregister_netdev+0x60/0x60
[ 26.590695][ T12] ops_undo_list+0x2bf/0x890
[ 26.590702][ T12] ? netns_get+0x110/0x110
[ 26.590706][ T12] ? cleanup_net+0x2d6/0x830
[ 26.590715][ T12] cleanup_net+0x3b2/0x830
[ 26.590721][ T12] ? net_passive_dec+0x190/0x190
[ 26.590727][ T12] ? rcu_is_watching+0x12/0xb0
[ 26.590738][ T12] process_one_work+0xe35/0x1650
[ 26.590748][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 26.590757][ T12] ? assign_work+0x168/0x240
[ 26.590764][ T12] worker_thread+0x591/0xcf0
[ 26.590774][ T12] ? rescuer_thread+0xd10/0xd10
[ 26.590780][ T12] kthread+0x37b/0x5f0
[ 26.590786][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 26.590790][ T12] ? ret_from_fork+0x1b/0x270
[ 26.590799][ T12] ? __lock_release+0x5d/0x170
[ 26.590804][ T12] ? rcu_is_watching+0x12/0xb0
[ 26.590809][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 26.590815][ T12] ret_from_fork+0x1db/0x270
[ 26.590819][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 26.590823][ T12] ret_from_fork_asm+0x11/0x20
[ 26.590839][ T12]
[ 26.590841][ T12] ==================================================================
[ 26.603481][ T12] Disabling lock debugging due to kernel taint
[ 26.603774][ T12] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 26.604115][ T12] #PF: supervisor write access in kernel mode
[ 26.604396][ T12] #PF: error_code(0x0002) - not-present page
[ 26.604676][ T12] PGD 0 P4D 0
[ 26.604857][ T12] Oops: Oops: 0002 [#1] SMP KASAN
[ 26.605087][ T12] CPU: 2 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G B 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 26.605602][ T12] Tainted: [B]=BAD_PAGE
[ 26.605777][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 26.606072][ T12] Workqueue: netns cleanup_net
[ 26.606317][ T12] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 26.606614][ 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 6f 7d 81 00 48 0f ba 2b 00 72 11 48 83 c4 10 31 c0 5b 5d 41 5c 41 5d 41 5e
[ 26.607438][ T12] RSP: 0018:ffffc900000c7690 EFLAGS: 00010046
[ 26.607730][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8fe4190a
[ 26.608077][ T12] RDX: fffffbfff285cecd RSI: 0000000000000008 RDI: ffffffff942e7660
[ 26.608427][ T12] RBP: ffffc900000c76f8 R08: 0000000000000001 R09: fffffbfff285cecc
[ 26.608771][ T12] R10: ffffffff942e7667 R11: ffffc900000c7180 R12: 0000000000000000
[ 26.609116][ T12] R13: 0000000000000286 R14: ffff88800ca31000 R15: dffffc0000000000
[ 26.609475][ T12] FS: 0000000000000000(0000) GS:ffff8880a2084000(0000) knlGS:0000000000000000
[ 26.609887][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 26.610185][ T12] CR2: 0000000000000000 CR3: 000000000b991001 CR4: 0000000000772ef0
[ 26.610535][ T12] PKRU: 55555554
[ 26.610708][ T12] Call Trace:
[ 26.610880][ T12]
[ 26.611002][ T12] __cancel_work+0x7c/0x260
[ 26.611233][ T12] ? enable_delayed_work+0x10/0x10
[ 26.611471][ T12] ? qdisc_destroy+0x50/0x50
[ 26.611703][ T12] __cancel_work_sync+0x18/0xc0
[ 26.611934][ T12] __dev_close_many+0x1ce/0x810
[ 26.612165][ T12] ? netdev_notify_peers+0x20/0x20
[ 26.612397][ T12] ? netif_close_many+0x201/0x650
[ 26.612628][ T12] netif_close_many+0x201/0x650
[ 26.612861][ T12] ? __mutex_handoff+0x2b0/0x2b0
[ 26.613095][ T12] ? __dev_close_many+0x810/0x810
[ 26.613328][ T12] ? netif_close_many_and_unlock+0x21/0x2a0
[ 26.613615][ T12] unregister_netdevice_many_notify+0x305/0x1b30
[ 26.613903][ T12] ? find_held_lock+0x2b/0x80
[ 26.614132][ T12] ? rtnl_is_locked+0x15/0x20
[ 26.614365][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 26.614595][ T12] ? rtnl_is_locked+0x15/0x20
[ 26.614826][ T12] ? unregister_netdevice_queue+0x6f/0x410
[ 26.615128][ T12] ? lockdep_hardirqs_on+0x7c/0x110
[ 26.615361][ T12] ? unregister_netdevice_many+0x20/0x20
[ 26.615592][ T12] default_device_exit_batch+0x235/0x2d0
[ 26.615819][ T12] ? unregister_netdev+0x60/0x60
[ 26.616050][ T12] ops_undo_list+0x2bf/0x890
[ 26.616282][ T12] ? netns_get+0x110/0x110
[ 26.616511][ T12] ? cleanup_net+0x2d6/0x830
[ 26.616757][ T12] cleanup_net+0x3b2/0x830
[ 26.616999][ T12] ? net_passive_dec+0x190/0x190
[ 26.617227][ T12] ? rcu_is_watching+0x12/0xb0
[ 26.617459][ T12] process_one_work+0xe35/0x1650
[ 26.617695][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 26.617932][ T12] ? assign_work+0x168/0x240
[ 26.618162][ T12] worker_thread+0x591/0xcf0
[ 26.618395][ T12] ? rescuer_thread+0xd10/0xd10
[ 26.618635][ T12] kthread+0x37b/0x5f0
[ 26.618810][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 26.619044][ T12] ? ret_from_fork+0x1b/0x270
[ 26.619307][ T12] ? __lock_release+0x5d/0x170
[ 26.619544][ T12] ? rcu_is_watching+0x12/0xb0
[ 26.619775][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 26.620006][ T12] ret_from_fork+0x1db/0x270
[ 26.620235][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 26.620477][ T12] ret_from_fork_asm+0x11/0x20
[ 26.620712][ T12]
[ 26.620908][ T12] Modules linked in:
[ 26.621090][ T12] CR2: 0000000000000000
[ 26.621261][ T12] ---[ end trace 0000000000000000 ]---
[ 26.621489][ T12] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 26.621781][ 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 6f 7d 81 00 48 0f ba 2b 00 72 11 48 83 c4 10 31 c0 5b 5d 41 5c 41 5d 41 5e
[ 26.622600][ T12] RSP: 0018:ffffc900000c7690 EFLAGS: 00010046
[ 26.622888][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8fe4190a
[ 26.623228][ T12] RDX: fffffbfff285cecd RSI: 0000000000000008 RDI: ffffffff942e7660
[ 26.623575][ T12] RBP: ffffc900000c76f8 R08: 0000000000000001 R09: fffffbfff285cecc
[ 26.623915][ T12] R10: ffffffff942e7667 R11: ffffc900000c7180 R12: 0000000000000000
[ 26.624252][ T12] R13: 0000000000000286 R14: ffff88800ca31000 R15: dffffc0000000000
[ 26.624590][ T12] FS: 0000000000000000(0000) GS:ffff8880a2084000(0000) knlGS:0000000000000000
[ 26.624984][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 26.625431][ T12] CR2: 0000000000000000 CR3: 000000000b991001 CR4: 0000000000772ef0
[ 26.625770][ T12] PKRU: 55555554
[ 26.625945][ T12] Kernel panic - not syncing: Fatal exception
[ 26.626466][ T12] Kernel Offset: 0xe800000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 26.627003][ T12] ---[ end Kernel panic - not syncing: Fatal exception ]---
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