[ 2.083643] ip (260) used greatest stack depth: 12376 bytes left [ 2.126470] ip (263) used greatest stack depth: 12168 bytes left [ 2.587388] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 2.587495] #PF: supervisor write access in kernel mode [ 2.587538] #PF: error_code(0x0002) - not-present page [ 2.587583] PGD 0 P4D 0 [ 2.587607] Oops: Oops: 0002 [#1] SMP [ 2.587643] CPU: 3 UID: 0 PID: 66 Comm: kworker/u16:1 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) [ 2.587725] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2.587780] Workqueue: netns cleanup_net [ 2.587825] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.587875] 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 [ 2.588030] RSP: 0018:ffffa929c024fbb8 EFLAGS: 00010046 [ 2.588075] RAX: 0000000000000246 RBX: 0000000000000000 RCX: ffff963782e12670 [ 2.588139] RDX: ffffa929c024fbf0 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.588204] RBP: ffffa929c024fbf0 R08: ffffffff98e93e00 R09: 0000000000000101 [ 2.588263] R10: ffffffff99a080d8 R11: ffffa929c013cff8 R12: 0000000000000000 [ 2.588338] R13: ffffa929c024fce8 R14: 0000000000000020 R15: ffffa929c024fdf0 [ 2.588408] FS: 0000000000000000(0000) GS:ffff963824b11000(0000) knlGS:0000000000000000 [ 2.588480] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.588534] CR2: 0000000000000000 CR3: 0000000004702005 CR4: 0000000000772ef0 [ 2.588598] PKRU: 55555554 [ 2.588622] Call Trace: [ 2.588644] [ 2.588669] __cancel_work+0x29/0xe0 [ 2.588714] ? queue_delayed_work_on+0x54/0x60 [ 2.588763] __cancel_work_sync+0x16/0x80 [ 2.588799] __dev_close_many+0x113/0x2b0 [ 2.588835] netif_close_many+0x98/0x160 [ 2.588870] ? rcu_barrier_entrain+0xb0/0xb0 [ 2.588919] unregister_netdevice_many_notify+0x1ea/0xaa0 [ 2.588964] ? unregister_netdevice_queue+0x29/0xe0 [ 2.589013] default_device_exit_batch+0x29b/0x300 [ 2.589059] ? mutex_lock+0x12/0x30 [ 2.589093] ops_undo_list+0xec/0x1f0 [ 2.589130] cleanup_net+0x1b7/0x300 [ 2.589164] process_one_work+0x162/0x380 [ 2.589199] worker_thread+0x299/0x3c0 [ 2.589234] ? rescuer_thread+0x4c0/0x4c0 [ 2.589273] kthread+0x101/0x1f0 [ 2.589309] ? kthreads_online_cpu+0x110/0x110 [ 2.589360] ? kthreads_online_cpu+0x110/0x110 [ 2.589409] ret_from_fork+0x11c/0x140 [ 2.589450] ? kthreads_online_cpu+0x110/0x110 [ 2.589499] ret_from_fork_asm+0x11/0x20 [ 2.589540] [ 2.589565] Modules linked in: nft_compat nf_tables [ 2.589614] CR2: 0000000000000000 [ 2.589648] ---[ end trace 0000000000000000 ]--- [ 2.589692] RIP: 0010:work_grab_pending+0x2f/0x1b0 [ 2.589736] 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 [ 2.589886] RSP: 0018:ffffa929c024fbb8 EFLAGS: 00010046 [ 2.589925] RAX: 0000000000000246 RBX: 0000000000000000 RCX: ffff963782e12670 [ 2.589996] RDX: ffffa929c024fbf0 RSI: 0000000000000000 RDI: 0000000000000000 [ 2.590060] RBP: ffffa929c024fbf0 R08: ffffffff98e93e00 R09: 0000000000000101 [ 2.590119] R10: ffffffff99a080d8 R11: ffffa929c013cff8 R12: 0000000000000000 [ 2.590179] R13: ffffa929c024fce8 R14: 0000000000000020 R15: ffffa929c024fdf0 [ 2.590244] FS: 0000000000000000(0000) GS:ffff963824b11000(0000) knlGS:0000000000000000 [ 2.590308] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2.590363] CR2: 0000000000000000 CR3: 0000000004702005 CR4: 0000000000772ef0 [ 2.590436] PKRU: 55555554 [ 2.590461] note: kworker/u16:1[66] exited with irqs disabled WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr