[ 10.902860] ip (696) used greatest stack depth: 12136 bytes left [ 10.955586] ip (701) used greatest stack depth: 12072 bytes left [ 11.191049] ipip: IPv4 and MPLS over IPv4 tunneling driver [ 17.751511] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 17.751589] #PF: supervisor write access in kernel mode [ 17.751633] #PF: error_code(0x0002) - not-present page [ 17.751675] PGD 0 P4D 0 [ 17.751697] Oops: Oops: 0002 [#1] SMP [ 17.751736] CPU: 0 UID: 0 PID: 68 Comm: kworker/u16:1 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 17.751799] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.751844] Workqueue: netns cleanup_net [ 17.751883] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 17.751927] Code: 83 e6 01 41 57 41 56 4c 8d 77 20 41 55 41 54 41 89 f4 55 48 89 d5 53 48 89 fb 9c 58 fa 48 89 45 00 45 85 e4 0f 85 8a 00 00 00 48 0f ba 2b 00 41 0f 92 c5 72 0e 5b 44 89 e8 5d 41 5c 41 5d 41 [ 17.752042] RSP: 0018:ffffa6428025fc30 EFLAGS: 00010046 [ 17.752080] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 17.752149] RDX: ffffa6428025fc68 RSI: 0000000000000000 RDI: 0000000000000000 [ 17.752202] RBP: ffffa6428025fc68 R08: ffffffff9c86d160 R09: 0000000000000101 [ 17.752260] R10: ffffffff9d0080d8 R11: ffffa64280003ff8 R12: 0000000000000000 [ 17.752307] R13: ffffa6428025fd60 R14: 0000000000000020 R15: ffffa6428025fdf0 [ 17.752363] FS: 0000000000000000(0000) GS:ffff921ba13d8000(0000) knlGS:0000000000000000 [ 17.752420] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 17.752465] CR2: 0000000000000000 CR3: 000000000f841006 CR4: 0000000000772ef0 [ 17.752525] PKRU: 55555554 [ 17.752551] Call Trace: [ 17.752578] [ 17.752603] __cancel_work+0x29/0xe0 [ 17.752636] ? dev_deactivate_many+0x2c9/0x300 [ 17.752678] __cancel_work_sync+0x16/0x80 [ 17.752707] __dev_close_many+0x11b/0x280 [ 17.752744] netif_close_many+0x98/0x160 [ 17.752775] unregister_netdevice_many_notify+0x1d8/0xa50 [ 17.752817] ? unregister_netdevice_queue+0x29/0xe0 [ 17.752856] ? sit_exit_rtnl_net+0x95/0x110 [ 17.752893] ops_undo_list+0x1de/0x1f0 [ 17.752925] cleanup_net+0x1b7/0x2b0 [ 17.752956] process_one_work+0x162/0x380 [ 17.752988] worker_thread+0x299/0x3c0 [ 17.753021] ? rescuer_thread+0x4c0/0x4c0 [ 17.753051] kthread+0x101/0x1f0 [ 17.753090] ? kthreads_online_cpu+0x110/0x110 [ 17.753141] ? kthreads_online_cpu+0x110/0x110 [ 17.753176] ret_from_fork+0x11c/0x140 [ 17.753212] ? kthreads_online_cpu+0x110/0x110 [ 17.753257] ret_from_fork_asm+0x11/0x20 [ 17.753292] [ 17.753311] Modules linked in: xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nft_compat x_tables inet_diag ipip veth nft_quota nf_tables [ 17.753407] CR2: 0000000000000000 [ 17.753434] ---[ end trace 0000000000000000 ]--- [ 17.753470] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 17.753507] Code: 83 e6 01 41 57 41 56 4c 8d 77 20 41 55 41 54 41 89 f4 55 48 89 d5 53 48 89 fb 9c 58 fa 48 89 45 00 45 85 e4 0f 85 8a 00 00 00 48 0f ba 2b 00 41 0f 92 c5 72 0e 5b 44 89 e8 5d 41 5c 41 5d 41 [ 17.753624] RSP: 0018:ffffa6428025fc30 EFLAGS: 00010046 [ 17.753662] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff [ 17.753713] RDX: ffffa6428025fc68 RSI: 0000000000000000 RDI: 0000000000000000 [ 17.753766] RBP: ffffa6428025fc68 R08: ffffffff9c86d160 R09: 0000000000000101 [ 17.753817] R10: ffffffff9d0080d8 R11: ffffa64280003ff8 R12: 0000000000000000 [ 17.753866] R13: ffffa6428025fd60 R14: 0000000000000020 R15: ffffa6428025fdf0 [ 17.753914] FS: 0000000000000000(0000) GS:ffff921ba13d8000(0000) knlGS:0000000000000000 [ 17.753966] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 17.754014] CR2: 0000000000000000 CR3: 000000000f841006 CR4: 0000000000772ef0 [ 17.754068] PKRU: 55555554 [ 17.754096] note: kworker/u16:1[68] exited with irqs disabled