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] SMP PTI
CPU: 2 PID: 105699 Comm: ThreadPoolForeg Tainted: G           OE     5.11.22-100.fc32.x86_64 #1
Hardware name: LENOVO 20DF000QUE/20DF000QUE, BIOS J5ET44WW (1.15 ) 03/12/2015
RIP: 0010:radeon_vm_fini+0x135/0x210 [radeon]
Code: e8 30 3f ec c6 4c 8b 7d 70 31 f6 49 8b bf 70 01 00 00 e8 2e 02 49 c7 83 f8 fc 0f 85 49 ff ff ff 49 8b 44 24 48 4d 8d 74 24 48 <48> 8b 10 48 8d 68 a8 48 8d 5a a8 49 39 c6 74 2e 48 8d 7d 70 e8 82
RSP: 0018:ffffb93503577c48 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff9411c98e0400 RCX: 0000000000000000
RDX: ffff9411017b4f00 RSI: ffff9411c98e1600 RDI: ffff9411c98e1620
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffb93503577b90
R10: 0000000000000000 R11: 000000000000005f R12: ffff9411c98e1600
R13: ffff94108c3d4000 R14: ffff9411c98e1648 R15: dead000000000100
FS:  0000000000000000(0000) GS:ffff9412c2e80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000164a10002 CR4: 00000000003706e0
Call Trace:
 radeon_driver_postclose_kms+0x156/0x170 [radeon]
 drm_file_free.part.0+0x1fb/0x260 [drm]
 drm_release+0x65/0x110 [drm]
 __fput+0x94/0x240
 task_work_run+0x65/0xa0
 do_exit+0x360/0xac0
 do_group_exit+0x33/0xa0
 get_signal+0x154/0x8a0
 ? user_path_at_empty+0x3f/0x80
 arch_do_signal_or_restart+0xf2/0x700
 ? __x64_sys_futex+0x12e/0x1a0
 exit_to_user_mode_prepare+0xfb/0x190
 syscall_exit_to_user_mode+0x18/0x40
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f8d13a4c1a8
Code: Unable to access opcode bytes at RIP 0x7f8d13a4c17e.
RSP: 002b:00007f8d043004c0 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffdfc RBX: 00007f8d04300520 RCX: 00007f8d13a4c1a8
RDX: 0000000000000000 RSI: 0000000000000089 RDI: 00007f8d04300758
RBP: 00007f8d04300730 R08: 0000000000000000 R09: 00000000ffffffff
R10: 00007f8d043005c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8d04300708 R14: 00007f8d043005c0 R15: 00007f8d04300758
Modules linked in: snd_seq_dummy snd_hrtimer uinput ppp_deflate bsd_comp ppp_async ppp_generic slhc bnep xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp tun bridge stp llc ccm nft_objref 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 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 nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) sunrpc uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 btusb intel_rapl_msr rtl8723be btrtl intel_rapl_common videobuf2_common btcoexist btbcm btintel videodev x86_pkg_temp_thermal bluetooth rtl8723_common rtl_pci intel_powerclamp coretemp rtlwifi mc kvm_intel mac80211 ecdh_generic ecc snd_hda_codec_conexant
 snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg at24 kvm soundwire_intel mei_hdcp soundwire_generic_allocation iTCO_wdt intel_pmc_bxt snd_soc_core iTCO_vendor_support cfg80211 snd_compress snd_pcm_dmaengine irqbypass soundwire_cadence rapl snd_hda_codec intel_cstate intel_uncore snd_hda_core ac97_bus snd_hwdep snd_seq joydev wmi_bmof snd_seq_device i2c_i801 pcspkr i2c_smbus intel_pch_thermal libarc4 mei_me snd_pcm lpc_ich mei thinkpad_acpi platform_profile ledtrig_audio snd_timer rfkill snd soundcore ip_tables amdgpu iommu_v2 gpu_sched i915 radeon rtsx_pci_sdmmc mmc_core i2c_algo_bit drm_ttm_helper ttm drm_kms_helper crct10dif_pclmul crc32_pclmul crc32c_intel cec ghash_clmulni_intel drm e1000e rtsx_pci serio_raw wmi video fuse
CR2: 0000000000000000