Backtrace

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: 0000 [#1] PREEMPT SMP PTI
CPU: 0 PID: 1307137 Comm: chrome:sh2 Tainted: G          I        6.2.7-200.fc37.x86_64 #1
Hardware name: LENOVO 80E5/Lenovo G50-80, BIOS B0CN93WW 07/23/2015
RIP: 0010:radeon_vm_fini+0x171/0x250 [radeon]
Code: 21 49 8b 87 78 02 00 00 4c 89 fa 48 c7 c6 cf b3 8c c0 4c 89 f3 48 8b 38 e8 1c 0c 23 d6 4d 85 f6 75 96 48 8b 45 48 4c 8d 75 48 <48> 8b 10 48 8d 58 a8 4c 8d 6a a8 49 39 c6 74 2e 48 8d 7b 70 e8 06
RSP: 0018:ffffb40d8b5c7c30 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff99cd84170e00 RDI: ffff99cd84170e20
RBP: ffff99cd84170e00 R08: ffff99cd8bcfcf28 R09: ffffb40d8b5c7b70
R10: 0000000000000003 R11: 0000000000000001 R12: ffff99cd8bcfc000
R13: ffff99cd84170e20 R14: ffff99cd84170e48 R15: dead000000000100
FS:  0000000000000000(0000) GS:ffff99cddac00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000027010001 CR4: 00000000003706f0
Call Trace:
 <TASK>
 radeon_driver_postclose_kms+0x160/0x190 [radeon]
 drm_file_free.part.0+0x207/0x250
 drm_release+0x64/0xd0
 __fput+0x91/0x250
 task_work_run+0x59/0x90
 do_exit+0x33e/0xb20
 ? _raw_spin_unlock+0x15/0x30
 ? futex_unqueue+0x38/0x60
 do_group_exit+0x2d/0x80
 get_signal+0x9b4/0x9f0
 arch_do_signal_or_restart+0x3a/0x280
 exit_to_user_mode_prepare+0x117/0x1f0
 syscall_exit_to_user_mode+0x17/0x40
 do_syscall_64+0x67/0x80
 ? exc_page_fault+0x70/0x170
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7fb83fe1cd16
Code: Unable to access opcode bytes at 0x7fb83fe1ccec.
RSP: 002b:00007fb81d3f55f0 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 0000000000000000 RCX: 00007fb83fe1cd16
RDX: 0000000000000000 RSI: 0000000000000189 RDI: 0000343800abab30
RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 0000343800abaae0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000343800abab30
 </TASK>
Modules linked in: cdc_acm tls uinput rfcomm snd_seq_dummy snd_hrtimer qrtr bnep sunrpc vfat fat intel_rapl_msr intel_rapl_common iwlmvm uvcvideo mac80211 videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 libarc4 snd_hda_codec_conexant snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi videobuf2_common x86_pkg_temp_thermal intel_powerclamp btusb coretemp snd_hda_intel snd_intel_dspcfg videodev snd_intel_sdw_acpi snd_hda_codec kvm_intel mc iwlwifi btrtl iTCO_wdt snd_hda_core btbcm kvm btintel snd_hwdep snd_seq intel_pmc_bxt btmtk rtsx_usb_ms memstick snd_seq_device bluetooth snd_pcm iTCO_vendor_support snd_timer joydev irqbypass ideapad_laptop rapl intel_cstate cfg80211 pcspkr intel_uncore snd mei_pxp mei_hdcp mei_me sparse_keymap platform_profile soundcore rfkill mei lpc_ich i2c_i801 i2c_smbus acpi_pad loop zram amdgpu iommu_v2 gpu_sched i915 radeon crct10dif_pclmul crc32_pclmul crc32c_intel rtsx_usb_sdmmc polyval_clmulni polyval_generic mmc_core drm_ttm_helper drm_buddy
 ttm drm_display_helper r8169 ghash_clmulni_intel sha512_ssse3 serio_raw rtsx_usb video cec wmi scsi_dh_rdac scsi_dh_emc scsi_dh_alua fuse dm_multipath
CR2: 0000000000000000