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: 43601 Comm: code:disk$1 Not tainted 6.2.8-200.fc37.x86_64 #1
Hardware name: LENOVO ACLU12/VIUU4, BIOS 9ACN32WW 07/20/2015
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 54 c0 4c 89 f3 48 8b 38 e8 ec 0d 5b ef 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:ffffa250ca3bbc28 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8fc9f4ba6000 RDI: ffff8fc9f4ba6020
RBP: ffff8fc9f4ba6000 R08: ffff8fc94c41cf28 R09: 000000000000e280
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8fc94c41c000
R13: ffff8fc9f4ba6020 R14: ffff8fc9f4ba6048 R15: dead000000000100
FS:  0000000000000000(0000) GS:ffff8fca87200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000002f010006 CR4: 00000000001706f0
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
 ? do_syscall_64+0x67/0x80
 ? exc_page_fault+0x70/0x170
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f9fb78b6d16
Code: Unable to access opcode bytes at 0x7f9fb78b6cec.
RSP: 002b:00007f9f918a1870 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 0000000000000000 RCX: 00007f9fb78b6d16
RDX: 0000000000000000 RSI: 0000000000000189 RDI: 00001b94002be3a8
RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00001b94002be358
R13: 0000000000000000 R14: 0000000000000000 R15: 00001b94002be3a8
 </TASK>
Modules linked in: rndis_host cdc_ether usbnet mii xt_conntrack xt_MASQUERADE nf_conntrack_netlink xt_addrtype nft_compat br_netfilter bridge stp llc 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 fat btusb btrtl btbcm snd_hda_codec_conexant btintel snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg iwlmvm snd_intel_sdw_acpi snd_hda_codec btmtk mac80211 ideapad_laptop libarc4 bluetooth sparse_keymap platform_profile snd_hda_core uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev iwlwifi snd_hwdep snd_seq mc cfg80211 rfkill snd_seq_device snd_pcm rtsx_usb_ms memstick joydev snd_timer intel_rapl_msr iTCO_wdt intel_pmc_bxt mei_pxp mei_hdcp
 iTCO_vendor_support at24 intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp rapl intel_cstate pcspkr intel_uncore mei_me snd soundcore mei i2c_i801 lpc_ich i2c_smbus loop zram amdgpu iommu_v2 gpu_sched i915 radeon crct10dif_pclmul crc32_pclmul rtsx_usb_sdmmc crc32c_intel mmc_core polyval_clmulni polyval_generic ghash_clmulni_intel drm_ttm_helper sha512_ssse3 drm_buddy serio_raw ttm drm_display_helper r8169 cec rtsx_usb video wmi ip6_tables ip_tables fuse
CR2: 0000000000000000