1094 377137 BUG unable to handle kernel NULL pointer dereference at 00

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[ 1094.377137] BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
[ 1094.377192] IP: dirlist_fini+0x38/0x7a [hook]
[ 1094.377217] PGD 0 P4D 0
[ 1094.377240] Oops: 0000 [#1] SMP PTI
[ 1094.377265] Modules linked in: hook(OE-) btrfs zstd_compress xor raid6_pq ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs libcrc32c vboxsf intel_powerclamp snd_intel8x0 snd_ac97_codec ac97_bus crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc snd_pcm aesni_intel aes_x86_64 crypto_simd glue_helper cryptd intel_rapl_perf snd_seq_midi snd_seq_midi_event snd_rawmidi vboxvideo(CE) snd_seq snd_seq_device snd_timer ttm drm_kms_helper drm fb_sys_fops syscopyarea sysfillrect sysimgblt input_leds serio_raw joydev snd mac_hid soundcore vboxguest sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 hid_generic usbhid hid psmouse mptspi mptscsih mptbase scsi_transport_spi ahci libahci i2c_piix4 e1000 pata_acpi video [last unloaded: hook]
[ 1094.377531] CPU: 0 PID: 21352 Comm: rmmod Tainted: G C OE 4.15.0-44-generic #47-Ubuntu
[ 1094.377564] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
[ 1094.377599] RIP: 0010:dirlist_fini+0x38/0x7a [hook]
[ 1094.377626] RSP: 0018:ffffbbe3c5a3be48 EFLAGS: 00010246
[ 1094.377652] RAX: 0000000000000000 RBX: ffff9547522eeb98 RCX: 00000000ffffffff
[ 1094.377683] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000001
[ 1094.377712] RBP: ffffbbe3c5a3be70 R08: 0000000000000001 R09: ffffffff9943018f
[ 1094.377742] R10: ffffffff9a25de60 R11: 0000000000000006 R12: 0000000000000000
[ 1094.377770] R13: ffff9547522eeb80 R14: 0000000000000000 R15: 0000000000000000
[ 1094.377801] FS: 00007ff1f7d9e540(0000) GS:ffff95487fc00000(0000) knlGS:0000000000000000
[ 1094.377832] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1094.377860] CR2: 0000000000000010 CR3: 000000016dab6005 CR4: 00000000000606f0
[ 1094.377890] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1094.377920] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1094.377949] Call Trace:
[ 1094.377977] hide_dir_fini+0x15/0x20 [hook]
[ 1094.378007] finalize+0x68/0x7a [hook]
[ 1094.378037] lkm_exit+0x13/0x3b [hook]
[ 1094.378063] SyS_delete_module+0x1ab/0x2c0
[ 1094.378090] do_syscall_64+0x73/0x130
[ 1094.378115] entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[ 1094.378143] RIP: 0033:0x7ff1f78c11b7
[ 1094.378166] RSP: 002b:00007ffc26cc79a8 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0
[ 1094.378197] RAX: ffffffffffffffda RBX: 00007ffc26cc7a08 RCX: 00007ff1f78c11b7
[ 1094.378226] RDX: 000000000000000a RSI: 0000000000000800 RDI: 000055b5d61bc7f8
[ 1094.378549] RBP: 000055b5d61bc790 R08: 00007ffc26cc6921 R09: 0000000000000000
[ 1094.378847] R10: 00007ff1f793dcc0 R11: 0000000000000206 R12: 00007ffc26cc7bd0
[ 1094.379154] R13: 00007ffc26cc8ece R14: 000055b5d61bc260 R15: 000055b5d61bc790
[ 1094.379456] Code: ad 29 23 00 45 31 f6 41 54 53 48 c7 05 9c 29 23 00 00 00 00 00 49 8d 5d 18 e8 d3 48 50 d8 4d 39 75 10 76 36 4c 8b 7b 08 45 31 e4 <4d> 39 67 10 76 0f 4b 8b 7c e7 18 49 ff c4 e8 33 92 64 d8 eb eb
[ 1094.380394] RIP: dirlist_fini+0x38/0x7a [hook] RSP: ffffbbe3c5a3be48
[ 1094.380691] CR2: 0000000000000010
[ 1094.380979] fbcon_switch: detected unhandled fb_set_par error, error code -16
[ 1094.381752] fbcon_switch: detected unhandled fb_set_par error, error code -16
[ 1094.382518] ---[ end trace 55e7ebdb459df144 ]---
[ 1094.633019] systemd[1]: Started ACPI event daemon.