This bug persists from some kernel versions and occurs on a notebook with a GTX 1650 graphics card, with a free nouveau driver (while if I use a proprietary driver it works fine, although I would like to do without the non-free version)

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BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: Oops: 0000 [#1] SMP NOPTI
CPU: 2 UID: 157 PID: 11455 Comm: kwin_wayland Tainted: G O 7.0.7-1-liquorix-amd64 #1 PREEMPT liquorix 7.0-7.1~sid c50ed353888fb3f1778b3187feb1f1cb24e99cc8
Tainted: [O]=OOT_MODULE
Hardware name: Notebook NH5x_NH7x_HHx_HJx_HKx/NH5x_NH7x_HHx_HJx_HKx, BIOS 1.07.03 05/13/2021
RIP: 0010:nvkm_gr_units+0x5/0x20 [nouveau]
Code: 74 05 ff e0 cc cc cc 31 c0 e9 97 a3 dc e0 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 <48> 8b 07 48 8b 40 58 48 85 c0 74 05 ff e0 cc cc cc 31 c0 c3 cc cc
RSP: 0018:ffffc9000ad47d08 EFLAGS: 00010246
RAX: 000000000000000d RBX: 0000000000000020 RCX: ffff888105725000
RDX: ffff8881624a9000 RSI: ffffc9000ad47de0 RDI: 0000000000000000
RBP: ffff88826031e800 R08: ffffc9000ad47de0 R09: 0000000000002cbf
R10: 0000000000000010 R11: 0000000000000000 R12: ffff8881624a9000
R13: ffffffffa1960d00 R14: ffffc9000ad47de0 R15: 0000000000000040
FS: 00007f0002c39f00(0000) GS:ffff8888dafb0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000147fa9003 CR4: 0000000000f72ef0
PKRU: 55555554
Call Trace:
<TASK>
nouveau_abi16_ioctl_getparam+0x2cd/0x350 [nouveau 8ae88670f2a1ae3815c8f08fcacea12c5b63f2e9]
? drm_dev_enter+0x19/0x60 [drm fe5b803287a47e9001e9e213138a2ac624a89b69]
drm_ioctl_kernel+0xa2/0xf0 [drm fe5b803287a47e9001e9e213138a2ac624a89b69]
drm_ioctl+0x24b/0x4f0 [drm fe5b803287a47e9001e9e213138a2ac624a89b69]
? __pfx_nouveau_abi16_ioctl_getparam+0x10/0x10 [nouveau 8ae88670f2a1ae3815c8f08fcacea12c5b63f2e9]
? __kmalloc_noprof+0x33b/0x4f0
? __kmalloc_cache_noprof+0x30d/0x430
? __check_object_size+0x1b4/0x240
nouveau_drm_ioctl+0x54/0xc0 [nouveau 8ae88670f2a1ae3815c8f08fcacea12c5b63f2e9]
__x64_sys_ioctl+0x93/0xe0
do_syscall_64+0x106/0xf80
? clear_bhb_loop+0x40/0x90
? clear_bhb_loop+0x40/0x90
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f0009318d3b
Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00
RSP: 002b:00007ffc4188e5c0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00005574cc5dfbc0 RCX: 00007f0009318d3b
RDX: 00007ffc4188e670 RSI: 00000000c0106440 RDI: 000000000000001f
RBP: 00007ffc4188e670 R08: 0000000000001558 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000c0106440
R13: 000000000000001f R14: 00005574cc7a4f50 R15: 0000000000000007
</TASK>
Modules linked in: rfcomm snd_seq_dummy snd_hrtimer ccm cmac algif_hash algif_skcipher af_alg sunrpc qrtr bnep spd5118 nls_iso8859_1 vfat fat snd_hda_codec_intelhdmi snd_sof_pci_intel_tgl snd_sof_pci_intel_cnl snd_sof_intel_hda_generic xe soundwire_intel snd_sof_intel_hda_sdw_bpt snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_intel_hda_mlink snd_sof_intel_hda snd_hda_codec_alc269 iwlmvm soundwire_cadence snd_hda_codec_realtek_lib snd_sof_pci drm_gpusvm_helper snd_sof_xtensa_dsp snd_hda_scodec_component snd_hda_codec_generic drm_suballoc_helper intel_rapl_msr snd_sof mac80211 intel_rapl_common snd_sof_utils snd_soc_acpi_intel_match intel_uncore_frequency snd_soc_acpi_intel_sdca_quirks intel_uncore_frequency_common soundwire_generic_allocation intel_tcc_cooling snd_soc_sdw_utils uvcvideo x86_pkg_temp_thermal snd_soc_acpi soundwire_bus tpm_crb intel_powerclamp libarc4 uvc snd_soc_sdca videobuf2_vmalloc crc8 i915 videobuf2_memops nouveau snd_soc_avs videobuf2_v4l2 btusb snd_soc_hda_codec drm_gpuvm kvm_intel
videobuf2_common iwlwifi snd_hda_ext_core btbcm gpu_sched btmtk btrtl drm_exec mei_pxp mei_hdcp snd_soc_core videodev btintel drm_buddy kvm spi_nor snd_compress drm_ttm_helper snd_hda_codec_nvhdmi drm_client_lib ac97_bus cfg80211 mei_me mc snd_hda_codec_hdmi mtd bluetooth mxm_wmi snd_pcm_dmaengine irqbypass ttm mei i2c_algo_bit snd_hda_intel drm_display_helper snd_hda_codec intel_pmc_core cec snd_hda_core pmt_telemetry rc_core snd_intel_dspcfg pmt_discovery snd_intel_sdw_acpi drm_kms_helper pmt_class snd_hwdep intel_gtt intel_pmc_ssram_telemetry intel_hid agpgart sparse_keymap tpm_tis acpi_pad intel_vsec tpm_tis_core mousedev sg snd_aloop snd_seq snd_pcm snd_seq_device option nct6775_core hso snd_timer ee1004 at24 yenta_socket mptspi hwmon_vid usb_wwan coretemp sky2 skge snd pcmcia_rsrc tun rfkill mptscsih sbs ecryptfs usbserial af_packet e1000e joydev pcmcia_core e1000 scsi_transport_spi ata_piix soundcore mptbase i2c_dev sbshc ata_generic msr fuse nvme_fabrics efi_pstore nfnetlink dmi_sysfs essiv
dm_crypt encrypted_keys trusted asn1_encoder tee tpm libaescfb ecdh_generic raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx raid1 raid0 linear md_mod usb_storage f2fs jfs nls_ucs2_utils nilfs2 nbd loop dm_mod usbhid hid_multitouch i2c_designware_platform ccp i2c_hid_acpi rng_core i2c_hid intel_oc_wdt ghash_clmulni_intel i2c_designware_core aesni_intel psmouse sdhci_pci serio_raw drm sdhci_uhs2 sdhci cqhci r8169 mmc_core realtek video intel_lpss_pci pinctrl_tigerlake spi_intel_pci intel_lpss wmi spi_intel idma64 vmd
CR2: 0000000000000000
---[ end trace 0000000000000000 ]---
RIP: 0010:nvkm_gr_units+0x5/0x20 [nouveau]
Code: 74 05 ff e0 cc cc cc 31 c0 e9 97 a3 dc e0 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 <48> 8b 07 48 8b 40 58 48 85 c0 74 05 ff e0 cc cc cc 31 c0 c3 cc cc
RSP: 0018:ffffc9000ad47d08 EFLAGS: 00010246
RAX: 000000000000000d RBX: 0000000000000020 RCX: ffff888105725000
RDX: ffff8881624a9000 RSI: ffffc9000ad47de0 RDI: 0000000000000000
RBP: ffff88826031e800 R08: ffffc9000ad47de0 R09: 0000000000002cbf
R10: 0000000000000010 R11: 0000000000000000 R12: ffff8881624a9000
R13: ffffffffa1960d00 R14: ffffc9000ad47de0 R15: 0000000000000040
FS: 00007f0002c39f00(0000) GS:ffff8888dafb0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000147fa9003 CR4: 0000000000f72ef0
PKRU: 55555554

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Have you tested with a stock kernel that matches Liquorix in any way? It really looks like to me that this is simply an upstream issue, nothing Liquorix is doing will change Nouveau's behavior.

I'd recommend you stick with non-free.
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