[ 15.367635][ T263] ip (263) used greatest stack depth: 23632 bytes left [ 27.017845][ T69] ================================================================== [ 27.018194][ T69] BUG: KASAN: null-ptr-deref in try_to_grab_pending+0x81/0x6c0 [ 27.018501][ T69] Write of size 8 at addr 0000000000000000 by task kworker/u16:1/69 [ 27.018805][ T69] [ 27.018912][ T69] CPU: 1 UID: 0 PID: 69 Comm: kworker/u16:1 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(full) [ 27.018917][ T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 27.018919][ T69] Workqueue: netns cleanup_net [ 27.018926][ T69] Call Trace: [ 27.018928][ T69] [ 27.018930][ T69] dump_stack_lvl+0x82/0xc0 [ 27.018936][ T69] ? try_to_grab_pending+0x81/0x6c0 [ 27.018940][ T69] kasan_report+0xca/0x100 [ 27.018946][ T69] ? try_to_grab_pending+0x81/0x6c0 [ 27.018951][ T69] kasan_check_range+0x39/0x1b0 [ 27.018955][ T69] try_to_grab_pending+0x81/0x6c0 [ 27.018959][ T69] ? irqentry_exit+0x3b/0x80 [ 27.018964][ T69] __cancel_work+0x7c/0x260 [ 27.018967][ T69] ? enable_delayed_work+0x10/0x10 [ 27.018973][ T69] ? queue_delayed_work_on+0x53/0xa0 [ 27.018977][ T69] __cancel_work_sync+0x18/0xc0 [ 27.018982][ T69] __dev_close_many+0x1ce/0x810 [ 27.018987][ T69] ? netdev_notify_peers+0x20/0x20 [ 27.018992][ T69] ? netif_close_many+0x201/0x650 [ 27.018997][ T69] netif_close_many+0x201/0x650 [ 27.019000][ T69] ? __mutex_handoff+0x2b0/0x2b0 [ 27.019006][ T69] ? __dev_close_many+0x810/0x810 [ 27.019010][ T69] ? netif_close_many_and_unlock+0x21/0x2a0 [ 27.019015][ T69] unregister_netdevice_many_notify+0x305/0x1b30 [ 27.019019][ T69] ? find_held_lock+0x2b/0x80 [ 27.019022][ T69] ? mutex_is_locked+0x1c/0x50 [ 27.019026][ T69] ? dev_ingress_queue_create+0x190/0x190 [ 27.019029][ T69] ? rtnl_is_locked+0x15/0x20 [ 27.019031][ T69] ? unregister_netdevice_queue+0x6f/0x410 [ 27.019034][ T69] ? unregister_netdevice_many+0x20/0x20 [ 27.019037][ T69] ? unregister_netdevice_many+0x20/0x20 [ 27.019042][ T69] default_device_exit_batch+0x235/0x2d0 [ 27.019046][ T69] ? unregister_netdev+0x60/0x60 [ 27.019051][ T69] ops_undo_list+0x2bf/0x890 [ 27.019056][ T69] ? netns_get+0x110/0x110 [ 27.019059][ T69] ? cleanup_net+0x2d6/0x830 [ 27.019065][ T69] cleanup_net+0x3b2/0x830 [ 27.019068][ T69] ? net_passive_dec+0x190/0x190 [ 27.019073][ T69] ? rcu_is_watching+0x12/0xb0 [ 27.019079][ T69] process_one_work+0xe35/0x1650 [ 27.019086][ T69] ? pwq_dec_nr_in_flight+0x550/0x550 [ 27.019092][ T69] ? assign_work+0x168/0x240 [ 27.019096][ T69] worker_thread+0x591/0xcf0 [ 27.019103][ T69] ? rescuer_thread+0xd10/0xd10 [ 27.019107][ T69] kthread+0x37b/0x5f0 [ 27.019111][ T69] ? kthread_is_per_cpu+0xc0/0xc0 [ 27.019114][ T69] ? ret_from_fork+0x1b/0x270 [ 27.019118][ T69] ? __lock_release+0x5d/0x170 [ 27.019122][ T69] ? rcu_is_watching+0x12/0xb0 [ 27.019125][ T69] ? kthread_is_per_cpu+0xc0/0xc0 [ 27.019129][ T69] ret_from_fork+0x1db/0x270 [ 27.019132][ T69] ? kthread_is_per_cpu+0xc0/0xc0 [ 27.019135][ T69] ret_from_fork_asm+0x11/0x20 [ 27.019144][ T69] [ 27.019145][ T69] ================================================================== [ 27.030119][ T69] Disabling lock debugging due to kernel taint [ 27.030381][ T69] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 27.030675][ T69] #PF: supervisor write access in kernel mode [ 27.030916][ T69] #PF: error_code(0x0002) - not-present page [ 27.031159][ T69] PGD 0 P4D 0 [ 27.031311][ T69] Oops: Oops: 0002 [#1] SMP KASAN [ 27.031512][ T69] CPU: 1 UID: 0 PID: 69 Comm: kworker/u16:1 Tainted: G B 6.18.0-rc5-virtme #1 PREEMPT(full) [ 27.031955][ T69] Tainted: [B]=BAD_PAGE [ 27.032106][ T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 27.032355][ T69] Workqueue: netns cleanup_net [ 27.032564][ T69] RIP: 0010:try_to_grab_pending+0x81/0x6c0 [ 27.032821][ T69] 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 [ 27.033516][ T69] RSP: 0018:ffffc900004a7690 EFLAGS: 00010046 [ 27.033762][ T69] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8d84190a [ 27.034057][ T69] RDX: fffffbfff239cecd RSI: 0000000000000008 RDI: ffffffff91ce7660 [ 27.034349][ T69] RBP: ffffc900004a76f8 R08: 0000000000000001 R09: fffffbfff239cecc [ 27.034645][ T69] R10: ffffffff91ce7667 R11: ffffc900004a7180 R12: 0000000000000000 [ 27.034938][ T69] R13: 0000000000000286 R14: ffff8880027dc000 R15: dffffc0000000000 [ 27.035233][ T69] FS: 0000000000000000(0000) GS:ffff8880a4604000(0000) knlGS:0000000000000000 [ 27.035574][ T69] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.035821][ T69] CR2: 0000000000000000 CR3: 0000000016b59006 CR4: 0000000000772ef0 [ 27.036116][ T69] PKRU: 55555554 [ 27.036265][ T69] Call Trace: [ 27.036414][ T69] [ 27.036515][ T69] ? irqentry_exit+0x3b/0x80 [ 27.036717][ T69] __cancel_work+0x7c/0x260 [ 27.036915][ T69] ? enable_delayed_work+0x10/0x10 [ 27.037112][ T69] ? queue_delayed_work_on+0x53/0xa0 [ 27.037311][ T69] __cancel_work_sync+0x18/0xc0 [ 27.037508][ T69] __dev_close_many+0x1ce/0x810 [ 27.037706][ T69] ? netdev_notify_peers+0x20/0x20 [ 27.037903][ T69] ? netif_close_many+0x201/0x650 [ 27.038101][ T69] netif_close_many+0x201/0x650 [ 27.038297][ T69] ? __mutex_handoff+0x2b0/0x2b0 [ 27.038497][ T69] ? __dev_close_many+0x810/0x810 [ 27.038693][ T69] ? netif_close_many_and_unlock+0x21/0x2a0 [ 27.038940][ T69] unregister_netdevice_many_notify+0x305/0x1b30 [ 27.039189][ T69] ? find_held_lock+0x2b/0x80 [ 27.039386][ T69] ? mutex_is_locked+0x1c/0x50 [ 27.039581][ T69] ? dev_ingress_queue_create+0x190/0x190 [ 27.039776][ T69] ? rtnl_is_locked+0x15/0x20 [ 27.039972][ T69] ? unregister_netdevice_queue+0x6f/0x410 [ 27.040216][ T69] ? unregister_netdevice_many+0x20/0x20 [ 27.040422][ T69] ? unregister_netdevice_many+0x20/0x20 [ 27.040625][ T69] default_device_exit_batch+0x235/0x2d0 [ 27.040823][ T69] ? unregister_netdev+0x60/0x60 [ 27.041021][ T69] ops_undo_list+0x2bf/0x890 [ 27.041220][ T69] ? netns_get+0x110/0x110 [ 27.041415][ T69] ? cleanup_net+0x2d6/0x830 [ 27.041615][ T69] cleanup_net+0x3b2/0x830 [ 27.041811][ T69] ? net_passive_dec+0x190/0x190 [ 27.042013][ T69] ? rcu_is_watching+0x12/0xb0 [ 27.042212][ T69] process_one_work+0xe35/0x1650 [ 27.042412][ T69] ? pwq_dec_nr_in_flight+0x550/0x550 [ 27.042609][ T69] ? assign_work+0x168/0x240 [ 27.042808][ T69] worker_thread+0x591/0xcf0 [ 27.043007][ T69] ? rescuer_thread+0xd10/0xd10 [ 27.043204][ T69] kthread+0x37b/0x5f0 [ 27.043354][ T69] ? kthread_is_per_cpu+0xc0/0xc0 [ 27.043554][ T69] ? ret_from_fork+0x1b/0x270 [ 27.043750][ T69] ? __lock_release+0x5d/0x170 [ 27.043947][ T69] ? rcu_is_watching+0x12/0xb0 [ 27.044145][ T69] ? kthread_is_per_cpu+0xc0/0xc0 [ 27.044342][ T69] ret_from_fork+0x1db/0x270 [ 27.044537][ T69] ? kthread_is_per_cpu+0xc0/0xc0 [ 27.044733][ T69] ret_from_fork_asm+0x11/0x20 [ 27.044934][ T69] [ 27.045082][ T69] Modules linked in: [ 27.045239][ T69] CR2: 0000000000000000 [ 27.045386][ T69] ---[ end trace 0000000000000000 ]--- [ 27.045584][ T69] RIP: 0010:try_to_grab_pending+0x81/0x6c0 [ 27.045833][ T69] 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 [ 27.046524][ T69] RSP: 0018:ffffc900004a7690 EFLAGS: 00010046 [ 27.046770][ T69] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8d84190a [ 27.047062][ T69] RDX: fffffbfff239cecd RSI: 0000000000000008 RDI: ffffffff91ce7660 [ 27.047353][ T69] RBP: ffffc900004a76f8 R08: 0000000000000001 R09: fffffbfff239cecc [ 27.047645][ T69] R10: ffffffff91ce7667 R11: ffffc900004a7180 R12: 0000000000000000 [ 27.047941][ T69] R13: 0000000000000286 R14: ffff8880027dc000 R15: dffffc0000000000 [ 27.048231][ T69] FS: 0000000000000000(0000) GS:ffff8880a4604000(0000) knlGS:0000000000000000 [ 27.048662][ T69] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.048907][ T69] CR2: 0000000000000000 CR3: 0000000016b59006 CR4: 0000000000772ef0 [ 27.049296][ T69] PKRU: 55555554 [ 27.049444][ T69] Kernel panic - not syncing: Fatal exception [ 27.049755][ T69] Kernel Offset: 0xc200000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 27.050329][ T69] ---[ end Kernel panic - not syncing: Fatal exception ]--- WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr