[ 20.080829][ T12] ==================================================================
[ 20.081350][ T12] BUG: KASAN: null-ptr-deref in try_to_grab_pending+0x81/0x6c0
[ 20.081767][ T12] Write of size 8 at addr 0000000000000000 by task kworker/u16:0/12
[ 20.082041][ T12]
[ 20.082133][ T12] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 20.082141][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.082145][ T12] Workqueue: netns cleanup_net
[ 20.082160][ T12] Call Trace:
[ 20.082163][ T12]
[ 20.082167][ T12] dump_stack_lvl+0x82/0xc0
[ 20.082177][ T12] ? try_to_grab_pending+0x81/0x6c0
[ 20.082183][ T12] kasan_report+0xca/0x100
[ 20.082193][ T12] ? try_to_grab_pending+0x81/0x6c0
[ 20.082202][ T12] kasan_check_range+0x39/0x1b0
[ 20.082208][ T12] try_to_grab_pending+0x81/0x6c0
[ 20.082215][ T12] __cancel_work+0x7c/0x260
[ 20.082219][ T12] ? enable_delayed_work+0x10/0x10
[ 20.082227][ T12] ? qdisc_destroy+0x50/0x50
[ 20.082237][ T12] __cancel_work_sync+0x18/0xc0
[ 20.082241][ T12] __dev_close_many+0x1cf/0x980
[ 20.082247][ T12] ? netdev_notify_peers+0x20/0x20
[ 20.082251][ T12] ? netif_close_many+0x201/0x650
[ 20.082257][ T12] netif_close_many+0x201/0x650
[ 20.082260][ T12] ? __mutex_handoff+0x2b0/0x2b0
[ 20.082267][ T12] ? __dev_close_many+0x980/0x980
[ 20.082270][ T12] ? netif_close_many_and_unlock+0x21/0x2a0
[ 20.082273][ T12] ? trace_contention_end+0xd8/0x140
[ 20.082277][ T12] unregister_netdevice_many_notify+0x30a/0x1c90
[ 20.082282][ T12] ? default_device_exit_batch+0x80/0x2d0
[ 20.082286][ T12] ? rtnl_is_locked+0x15/0x20
[ 20.082291][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 20.082294][ T12] ? rtnl_is_locked+0x15/0x20
[ 20.082297][ T12] ? unregister_netdevice_queue+0x6f/0x410
[ 20.082300][ T12] ? unregister_netdevice_many+0x20/0x20
[ 20.082307][ T12] default_device_exit_batch+0x235/0x2d0
[ 20.082310][ T12] ? unregister_netdev+0x60/0x60
[ 20.082316][ T12] ops_undo_list+0x2bf/0x890
[ 20.082322][ T12] ? rtnl_net_dumpid_one+0x270/0x270
[ 20.082325][ T12] ? cleanup_net+0x2d6/0x8b0
[ 20.082333][ T12] cleanup_net+0x3b2/0x8b0
[ 20.082338][ T12] ? net_passive_dec+0x190/0x190
[ 20.082342][ T12] ? rcu_is_watching+0x12/0xb0
[ 20.082351][ T12] process_one_work+0xe35/0x1650
[ 20.082358][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 20.082364][ T12] ? assign_work+0x168/0x240
[ 20.082368][ T12] worker_thread+0x591/0xcf0
[ 20.082374][ T12] ? rescuer_thread+0xd10/0xd10
[ 20.082378][ T12] kthread+0x37b/0x5f0
[ 20.082387][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 20.082391][ T12] ? ret_from_fork+0x1b/0x270
[ 20.082400][ T12] ? __lock_release+0x5d/0x170
[ 20.082406][ T12] ? rcu_is_watching+0x12/0xb0
[ 20.082411][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 20.082417][ T12] ret_from_fork+0x1db/0x270
[ 20.082421][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 20.082425][ T12] ret_from_fork_asm+0x11/0x20
[ 20.082439][ T12]
[ 20.082441][ T12] ==================================================================
[ 20.092056][ T12] Disabling lock debugging due to kernel taint
[ 20.092297][ T12] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 20.092577][ T12] #PF: supervisor write access in kernel mode
[ 20.092818][ T12] #PF: error_code(0x0002) - not-present page
[ 20.093047][ T12] PGD 0 P4D 0
[ 20.093181][ T12] Oops: Oops: 0002 [#1] SMP KASAN
[ 20.093359][ T12] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G B 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 20.093755][ T12] Tainted: [B]=BAD_PAGE
[ 20.093892][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.094121][ T12] Workqueue: netns cleanup_net
[ 20.094309][ T12] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 20.094698][ 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
[ 20.095452][ T12] RSP: 0018:ffffc900000c7680 EFLAGS: 00010046
[ 20.095674][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaa849b8a
[ 20.095935][ T12] RDX: fffffbfff5eacacd RSI: 0000000000000008 RDI: ffffffffaf565660
[ 20.096292][ T12] RBP: ffffc900000c76e8 R08: 0000000000000001 R09: fffffbfff5eacacc
[ 20.096572][ T12] R10: ffffffffaf565667 R11: ffffc900000c7140 R12: 0000000000000000
[ 20.096820][ T12] R13: 0000000000000282 R14: ffff8880059b4000 R15: dffffc0000000000
[ 20.097188][ T12] FS: 0000000000000000(0000) GS:ffff8880bdb87000(0000) knlGS:0000000000000000
[ 20.097493][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 20.097797][ T12] CR2: 0000000000000000 CR3: 000000005d949006 CR4: 0000000000772ef0
[ 20.098063][ T12] PKRU: 55555554
[ 20.098193][ T12] Call Trace:
[ 20.098318][ T12]
[ 20.098419][ T12] __cancel_work+0x7c/0x260
[ 20.098694][ T12] ? enable_delayed_work+0x10/0x10
[ 20.098861][ T12] ? qdisc_destroy+0x50/0x50
[ 20.099044][ T12] __cancel_work_sync+0x18/0xc0
[ 20.099212][ T12] __dev_close_many+0x1cf/0x980
[ 20.099484][ T12] ? netdev_notify_peers+0x20/0x20
[ 20.099653][ T12] ? netif_close_many+0x201/0x650
[ 20.099819][ T12] netif_close_many+0x201/0x650
[ 20.099986][ T12] ? __mutex_handoff+0x2b0/0x2b0
[ 20.100254][ T12] ? __dev_close_many+0x980/0x980
[ 20.100427][ T12] ? netif_close_many_and_unlock+0x21/0x2a0
[ 20.100628][ T12] ? trace_contention_end+0xd8/0x140
[ 20.100792][ T12] unregister_netdevice_many_notify+0x30a/0x1c90
[ 20.101099][ T12] ? default_device_exit_batch+0x80/0x2d0
[ 20.101269][ T12] ? rtnl_is_locked+0x15/0x20
[ 20.101444][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 20.101703][ T12] ? rtnl_is_locked+0x15/0x20
[ 20.101862][ T12] ? unregister_netdevice_queue+0x6f/0x410
[ 20.102080][ T12] ? unregister_netdevice_many+0x20/0x20
[ 20.102246][ T12] default_device_exit_batch+0x235/0x2d0
[ 20.102581][ T12] ? unregister_netdev+0x60/0x60
[ 20.102748][ T12] ops_undo_list+0x2bf/0x890
[ 20.102915][ T12] ? rtnl_net_dumpid_one+0x270/0x270
[ 20.103088][ T12] ? cleanup_net+0x2d6/0x8b0
[ 20.103344][ T12] cleanup_net+0x3b2/0x8b0
[ 20.103520][ T12] ? net_passive_dec+0x190/0x190
[ 20.103693][ T12] ? rcu_is_watching+0x12/0xb0
[ 20.103860][ T12] process_one_work+0xe35/0x1650
[ 20.104047][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 20.104224][ T12] ? assign_work+0x168/0x240
[ 20.104390][ T12] worker_thread+0x591/0xcf0
[ 20.104563][ T12] ? rescuer_thread+0xd10/0xd10
[ 20.104819][ T12] kthread+0x37b/0x5f0
[ 20.104945][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 20.105122][ T12] ? ret_from_fork+0x1b/0x270
[ 20.105289][ T12] ? __lock_release+0x5d/0x170
[ 20.105573][ T12] ? rcu_is_watching+0x12/0xb0
[ 20.105737][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 20.105900][ T12] ret_from_fork+0x1db/0x270
[ 20.106071][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 20.106339][ T12] ret_from_fork_asm+0x11/0x20
[ 20.106523][ T12]
[ 20.106653][ T12] Modules linked in:
[ 20.106820][ T12] CR2: 0000000000000000
[ 20.106942][ T12] ---[ end trace 0000000000000000 ]---
[ 20.107240][ T12] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 20.107476][ 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
[ 20.108209][ T12] RSP: 0018:ffffc900000c7680 EFLAGS: 00010046
[ 20.108444][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffaa849b8a
[ 20.108701][ T12] RDX: fffffbfff5eacacd RSI: 0000000000000008 RDI: ffffffffaf565660
[ 20.109048][ T12] RBP: ffffc900000c76e8 R08: 0000000000000001 R09: fffffbfff5eacacc
[ 20.109306][ T12] R10: ffffffffaf565667 R11: ffffc900000c7140 R12: 0000000000000000
[ 20.109700][ T12] R13: 0000000000000282 R14: ffff8880059b4000 R15: dffffc0000000000
[ 20.109970][ T12] FS: 0000000000000000(0000) GS:ffff8880bdb87000(0000) knlGS:0000000000000000
[ 20.110263][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 20.110599][ T12] CR2: 0000000000000000 CR3: 000000005d949006 CR4: 0000000000772ef0
[ 20.110843][ T12] PKRU: 55555554
[ 20.110985][ T12] Kernel panic - not syncing: Fatal exception
[ 20.111446][ T12] Kernel Offset: 0x29200000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 20.111830][ T12] ---[ end Kernel panic - not syncing: Fatal exception ]---
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