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: 2477 Comm: skypeforlinux Tainted: G          I        6.2.7-200.fc37.x86_64 #1
Hardware name: LENOVO 20DF004SMC/20DF004SMC, BIOS J5ET53WW (1.24 ) 04/27/2016
RIP: 0010:radeon_vm_fini+0x171/0x250 [radeon]
Code: 21 49 8b 87 78 02 00 00 4c 89 fa 48 c7 c6 cf 43 5d c0 4c 89 f3 48 8b 38 e8 1c 7c 52 f3 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:ffffc000417a7c88 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff9c03e34ec000 RDI: ffff9c03e34ec020
RBP: ffff9c03e34ec000 R08: ffff9c038b158f28 R09: 000000003574f210
R10: 0000000000000000 R11: 0000000000000003 R12: ffff9c038b158000
R13: ffff9c03e34ec020 R14: ffff9c03e34ec048 R15: dead000000000100
FS:  0000000000000000(0000) GS:ffff9c04c6c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000011b010003 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
 ? update_load_avg+0x7e/0x780
 ? psi_group_change+0x168/0x400
 do_group_exit+0x2d/0x80
 get_signal+0x9b4/0x9f0
 arch_do_signal_or_restart+0x3a/0x280
 exit_to_user_mode_prepare+0x117/0x1f0
 irqentry_exit_to_user_mode+0x5/0x30
 asm_sysvec_reschedule_ipi+0x16/0x20
RIP: 0033:0x564b78f7d5e0
Code: Unable to access opcode bytes at 0x564b78f7d5b6.
RSP: 002b:00007fffea6c15c8 EFLAGS: 00000246
RAX: 00007fffea6c1500 RBX: 000030cc002f8000 RCX: 0000000000000003
RDX: 00007fffea6c15f0 RSI: 0000000000000000 RDI: 000030cc002f8008
RBP: 00007fffea6c1640 R08: 0000000000000000 R09: 0000000000001110
R10: 00007fffea7c2080 R11: 0000000000429e88 R12: 000030cc0023ed80
R13: 7fffffffffffffff R14: 00007fffea6c15d8 R15: 0000000000000000
 </TASK>
fbcon: Taking over console
Modules linked in: tls rfcomm snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc 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_tables ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ip_tables qrtr bnep intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp mei_pxp coretemp sunrpc at24 iTCO_wdt iwlmvm intel_pmc_bxt iTCO_vendor_support kvm_intel kvm mei_hdcp mac80211 snd_ctl_led snd_hda_codec_conexant vfat irqbypass libarc4 snd_hda_codec_generic fat uvcvideo videobuf2_vmalloc videobuf2_memops btusb snd_hda_codec_hdmi btrtl videobuf2_v4l2 rapl
 videobuf2_common btbcm snd_hda_intel joydev intel_cstate snd_intel_dspcfg snd_intel_sdw_acpi iwlwifi snd_hda_codec btintel snd_hda_core btmtk think_lmi intel_uncore pcspkr i2c_i801 snd_hwdep videodev cfg80211 firmware_attributes_class bluetooth wmi_bmof intel_pch_thermal i2c_smbus snd_seq thinkpad_acpi lpc_ich mc snd_seq_device snd_pcm ledtrig_audio platform_profile rfkill snd_timer mei_me snd mei soundcore loop zram amdgpu iommu_v2 gpu_sched i915 radeon rtsx_pci_sdmmc mmc_core crct10dif_pclmul crc32_pclmul crc32c_intel polyval_clmulni polyval_generic ghash_clmulni_intel e1000e sha512_ssse3 serio_raw drm_ttm_helper rtsx_pci drm_buddy ttm drm_display_helper cec video wmi scsi_dh_rdac scsi_dh_emc scsi_dh_alua fuse dm_multipath
CR2: 0000000000000000