[ 15.448618][ T12] ==================================================================
[ 15.448970][ T12] BUG: KASAN: null-ptr-deref in try_to_grab_pending+0x81/0x6c0
[ 15.449273][ T12] Write of size 8 at addr 0000000000000000 by task kworker/u16:0/12
[ 15.449538][ T12]
[ 15.449637][ T12] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 15.449642][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 15.449646][ T12] Workqueue: netns cleanup_net
[ 15.449654][ T12] Call Trace:
[ 15.449656][ T12]
[ 15.449659][ T12] dump_stack_lvl+0x82/0xc0
[ 15.449667][ T12] ? try_to_grab_pending+0x81/0x6c0
[ 15.449670][ T12] kasan_report+0xca/0x100
[ 15.449678][ T12] ? try_to_grab_pending+0x81/0x6c0
[ 15.449683][ T12] kasan_check_range+0x39/0x1b0
[ 15.449686][ T12] try_to_grab_pending+0x81/0x6c0
[ 15.449689][ T12] ? netif_close_many+0x201/0x650
[ 15.449695][ T12] __cancel_work+0x7c/0x260
[ 15.449698][ T12] ? enable_delayed_work+0x10/0x10
[ 15.449703][ T12] ? queue_delayed_work_on+0x6a/0xa0
[ 15.449707][ T12] __cancel_work_sync+0x18/0xc0
[ 15.449711][ T12] __dev_close_many+0x1ce/0x810
[ 15.449714][ T12] ? netdev_notify_peers+0x20/0x20
[ 15.449718][ T12] ? netif_close_many+0x201/0x650
[ 15.449722][ T12] netif_close_many+0x201/0x650
[ 15.449725][ T12] ? __mutex_handoff+0x2b0/0x2b0
[ 15.449731][ T12] ? __dev_close_many+0x810/0x810
[ 15.449735][ T12] ? netif_close_many_and_unlock+0x21/0x2a0
[ 15.449740][ T12] unregister_netdevice_many_notify+0x305/0x1b30
[ 15.449745][ T12] ? find_held_lock+0x2b/0x80
[ 15.449751][ T12] ? mutex_is_locked+0x1c/0x50
[ 15.449754][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 15.449757][ T12] ? rtnl_is_locked+0x15/0x20
[ 15.449760][ T12] ? unregister_netdevice_queue+0x6f/0x410
[ 15.449763][ T12] ? unregister_netdevice_many+0x20/0x20
[ 15.449767][ T12] ? unregister_netdevice_many+0x20/0x20
[ 15.449773][ T12] default_device_exit_batch+0x235/0x2d0
[ 15.449776][ T12] ? unregister_netdev+0x60/0x60
[ 15.449782][ T12] ops_undo_list+0x2bf/0x890
[ 15.449786][ T12] ? netns_get+0x110/0x110
[ 15.449789][ T12] ? cleanup_net+0x2d6/0x830
[ 15.449793][ T12] cleanup_net+0x3b2/0x830
[ 15.449797][ T12] ? net_passive_dec+0x190/0x190
[ 15.449800][ T12] ? rcu_is_watching+0x12/0xb0
[ 15.449807][ T12] process_one_work+0xe35/0x1650
[ 15.449813][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 15.449818][ T12] ? assign_work+0x168/0x240
[ 15.449822][ T12] worker_thread+0x591/0xcf0
[ 15.449827][ T12] ? rescuer_thread+0xd10/0xd10
[ 15.449830][ T12] kthread+0x37b/0x5f0
[ 15.449834][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 15.449836][ T12] ? ret_from_fork+0x1b/0x270
[ 15.449842][ T12] ? __lock_release+0x5d/0x170
[ 15.449846][ T12] ? rcu_is_watching+0x12/0xb0
[ 15.449848][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 15.449852][ T12] ret_from_fork+0x1db/0x270
[ 15.449855][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 15.449857][ T12] ret_from_fork_asm+0x11/0x20
[ 15.449865][ T12]
[ 15.449867][ T12] ==================================================================
[ 15.461253][ T12] Disabling lock debugging due to kernel taint
[ 15.461486][ T12] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 15.461754][ T12] #PF: supervisor write access in kernel mode
[ 15.461978][ T12] #PF: error_code(0x0002) - not-present page
[ 15.462192][ T12] PGD 0 P4D 0
[ 15.462345][ T12] Oops: Oops: 0002 [#1] SMP KASAN
[ 15.462525][ T12] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G B 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 15.462904][ T12] Tainted: [B]=BAD_PAGE
[ 15.463044][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 15.463261][ T12] Workqueue: netns cleanup_net
[ 15.463448][ T12] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 15.463666][ 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 7f 7f 81 00 48 0f ba 2b 00 72 11 48 83 c4 10 31 c0 5b 5d 41 5c 41 5d 41 5e
[ 15.464265][ T12] RSP: 0018:ffffc900000c7690 EFLAGS: 00010046
[ 15.464480][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8e23f90a
[ 15.464735][ T12] RDX: fffffbfff248b6cd RSI: 0000000000000008 RDI: ffffffff9245b660
[ 15.464985][ T12] RBP: ffffc900000c76f8 R08: 0000000000000001 R09: fffffbfff248b6cc
[ 15.465235][ T12] R10: ffffffff9245b667 R11: ffffc900000c7180 R12: 0000000000000000
[ 15.465517][ T12] R13: 0000000000000286 R14: ffff88800bc7c000 R15: dffffc0000000000
[ 15.465767][ T12] FS: 0000000000000000(0000) GS:ffff8880a3e90000(0000) knlGS:0000000000000000
[ 15.466054][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 15.466274][ T12] CR2: 0000000000000000 CR3: 0000000021735003 CR4: 0000000000772ef0
[ 15.466532][ T12] PKRU: 55555554
[ 15.466661][ T12] Call Trace:
[ 15.466790][ T12]
[ 15.466877][ T12] ? netif_close_many+0x201/0x650
[ 15.467085][ T12] __cancel_work+0x7c/0x260
[ 15.467260][ T12] ? enable_delayed_work+0x10/0x10
[ 15.467435][ T12] ? queue_delayed_work_on+0x6a/0xa0
[ 15.467623][ T12] __cancel_work_sync+0x18/0xc0
[ 15.467796][ T12] __dev_close_many+0x1ce/0x810
[ 15.467962][ T12] ? netdev_notify_peers+0x20/0x20
[ 15.468144][ T12] ? netif_close_many+0x201/0x650
[ 15.468319][ T12] netif_close_many+0x201/0x650
[ 15.468492][ T12] ? __mutex_handoff+0x2b0/0x2b0
[ 15.468659][ T12] ? __dev_close_many+0x810/0x810
[ 15.468827][ T12] ? netif_close_many_and_unlock+0x21/0x2a0
[ 15.469033][ T12] unregister_netdevice_many_notify+0x305/0x1b30
[ 15.469253][ T12] ? find_held_lock+0x2b/0x80
[ 15.469437][ T12] ? mutex_is_locked+0x1c/0x50
[ 15.469638][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 15.469805][ T12] ? rtnl_is_locked+0x15/0x20
[ 15.469972][ T12] ? unregister_netdevice_queue+0x6f/0x410
[ 15.470180][ T12] ? unregister_netdevice_many+0x20/0x20
[ 15.470357][ T12] ? unregister_netdevice_many+0x20/0x20
[ 15.470559][ T12] default_device_exit_batch+0x235/0x2d0
[ 15.470727][ T12] ? unregister_netdev+0x60/0x60
[ 15.470896][ T12] ops_undo_list+0x2bf/0x890
[ 15.471064][ T12] ? netns_get+0x110/0x110
[ 15.471238][ T12] ? cleanup_net+0x2d6/0x830
[ 15.471417][ T12] cleanup_net+0x3b2/0x830
[ 15.471585][ T12] ? net_passive_dec+0x190/0x190
[ 15.471752][ T12] ? rcu_is_watching+0x12/0xb0
[ 15.471929][ T12] process_one_work+0xe35/0x1650
[ 15.472112][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 15.472290][ T12] ? assign_work+0x168/0x240
[ 15.472458][ T12] worker_thread+0x591/0xcf0
[ 15.472625][ T12] ? rescuer_thread+0xd10/0xd10
[ 15.472794][ T12] kthread+0x37b/0x5f0
[ 15.472922][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 15.473100][ T12] ? ret_from_fork+0x1b/0x270
[ 15.473289][ T12] ? __lock_release+0x5d/0x170
[ 15.473462][ T12] ? rcu_is_watching+0x12/0xb0
[ 15.473631][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 15.473798][ T12] ret_from_fork+0x1db/0x270
[ 15.473966][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 15.474128][ T12] ret_from_fork_asm+0x11/0x20
[ 15.474323][ T12]
[ 15.474453][ T12] Modules linked in: veth
[ 15.474596][ T12] CR2: 0000000000000000
[ 15.474731][ T12] ---[ end trace 0000000000000000 ]---
[ 15.474905][ T12] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 15.475126][ 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 7f 7f 81 00 48 0f ba 2b 00 72 11 48 83 c4 10 31 c0 5b 5d 41 5c 41 5d 41 5e
[ 15.475738][ T12] RSP: 0018:ffffc900000c7690 EFLAGS: 00010046
[ 15.475955][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8e23f90a
[ 15.476205][ T12] RDX: fffffbfff248b6cd RSI: 0000000000000008 RDI: ffffffff9245b660
[ 15.476461][ T12] RBP: ffffc900000c76f8 R08: 0000000000000001 R09: fffffbfff248b6cc
[ 15.476731][ T12] R10: ffffffff9245b667 R11: ffffc900000c7180 R12: 0000000000000000
[ 15.476984][ T12] R13: 0000000000000286 R14: ffff88800bc7c000 R15: dffffc0000000000
[ 15.477246][ T12] FS: 0000000000000000(0000) GS:ffff8880a3e90000(0000) knlGS:0000000000000000
[ 15.477540][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 15.477752][ T12] CR2: 0000000000000000 CR3: 0000000021735003 CR4: 0000000000772ef0
[ 15.478014][ T12] PKRU: 55555554
[ 15.478143][ T12] Kernel panic - not syncing: Fatal exception
[ 15.478458][ T12] Kernel Offset: 0xcc00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 15.478860][ T12] ---[ end Kernel panic - not syncing: Fatal exception ]---
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