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: 1 PID: 3565 Comm: ThreadPoolSingl Tainted: G          I        6.2.14-100.fc36.x86_64 #1
Hardware name: Dell Inc. Inspiron 5548/079JDM, BIOS A04 05/15/2015
RIP: 0010:radeon_vm_fini+0x171/0x250 [radeon]
Code: 21 49 8b 87 78 02 00 00 4c 89 fa 48 c7 c6 cf 63 7f c0 4c 89 f3 48 8b 38 e8 6c 69 30 ca 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 e6
RSP: 0018:ffffbbcb84743c28 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff9d2c83cafe00 RDI: ffff9d2c83cafe20
RBP: ffff9d2c83cafe00 R08: ffff9d2c8b3bcf28 R09: ffffbbcb84743b68
R10: 0000000000000006 R11: 0000000000000001 R12: ffff9d2c8b3bc000
R13: ffff9d2c83cafe20 R14: ffff9d2c83cafe48 R15: dead000000000100
FS:  0000000000000000(0000) GS:ffff9d2dd6c80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000003e010004 CR4: 00000000003706e0
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+0x18d/0x1f0
 syscall_exit_to_user_mode+0x17/0x40
 do_syscall_64+0x67/0x80
 ? syscall_exit_to_user_mode+0x17/0x40
 ? do_syscall_64+0x67/0x80
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7fe0fce899b9
Code: Unable to access opcode bytes at 0x7fe0fce8998f.
RSP: 002b:00007fe0dfdfe030 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 0000000000000000 RCX: 00007fe0fce899b9
RDX: 0000000000000000 RSI: 0000000000000189 RDI: 00007fe0dfdfe268
RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe0dfdfe218
R13: 0000000000000000 R14: 0000000000000000 R15: 00007fe0dfdfe268
 </TASK>
Modules linked in: tls uinput rfcomm snd_seq_dummy snd_hrtimer nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables nfnetlink qrtr bnep sunrpc binfmt_misc vfat iwlmvm fat intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel mac80211 snd_ctl_led snd_hda_codec_realtek libarc4 snd_hda_codec_generic mei_hdcp mei_pxp iTCO_wdt snd_hda_codec_hdmi kvm uvcvideo intel_pmc_bxt iTCO_vendor_support at24 snd_hda_intel videobuf2_vmalloc videobuf2_memops snd_intel_dspcfg btusb videobuf2_v4l2 snd_intel_sdw_acpi irqbypass btrtl snd_hda_codec iwlwifi videobuf2_common btbcm rapl snd_hda_core dell_laptop intel_cstate btintel dell_smm_hwmon snd_hwdep videodev intel_uncore snd_seq rtsx_usb_ms btmtk snd_seq_device memstick cfg80211 bluetooth snd_pcm mc dell_wmi mei_me
 ledtrig_audio dell_smbios sparse_keymap snd_timer dcdbas dell_wmi_descriptor joydev snd mei lpc_ich i2c_i801 pcspkr soundcore wmi_bmof i2c_smbus dell_rbtn acpi_pad rfkill dw_dmac zram amdgpu iommu_v2 gpu_sched i915 radeon crct10dif_pclmul crc32_pclmul crc32c_intel polyval_clmulni polyval_generic drm_ttm_helper drm_buddy ghash_clmulni_intel ttm sha512_ssse3 drm_display_helper serio_raw r8169 cec pinctrl_lynxpoint video i2c_hid_acpi i2c_hid wmi rtsx_usb_sdmmc mmc_core rtsx_usb hid_multitouch ip6_tables ip_tables fuse
CR2: 0000000000000000