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: 1 PID: 3389 Comm: chrome:disk$2 Tainted: G           OE     5.11.22-100.fc32.x86_64 #1
Hardware name: LENOVO 80FA/Lenovo Y40-80, BIOS B5CN38WW(V2.04) 07/08/2015
RIP: 0010:radeon_vm_fini+0x135/0x210 [radeon]
Code: e8 30 0f 05 d7 4c 8b 7d 70 31 f6 49 8b bf 70 01 00 00 e8 2e d2 61 d7 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:ffffb6ce44973c48 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff9c1ce9765a00 RCX: 0000000000000000
RDX: ffff9c1d7dc64f00 RSI: ffff9c1ce9765200 RDI: ffff9c1ce9765220
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffb6ce44973b90
R10: 0000000000000000 R11: 000000000000005f R12: ffff9c1ce9765200
R13: ffff9c1c8c984000 R14: ffff9c1ce9765248 R15: dead000000000100
FS:  0000000000000000(0000) GS:ffff9c1dd6c80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000001067fa002 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
 arch_do_signal_or_restart+0xf2/0x700
 ? kmem_cache_free+0x3f8/0x430
 ? __fput+0xff/0x240
 ? __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: 0033:0x7f33154eee92
Code: Unable to access opcode bytes at RIP 0x7f33154eee68.
RSP: 002b:00007f32fa3136a0 EFLAGS: 00000282 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 000000000000004b RCX: 00007f33154eee92
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000c94001195cc
RBP: 00000c94001195a0 R08: 0000000000000000 R09: 00000000000008be
R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000000
R13: 00000c9400119578 R14: 00000c94001195cc R15: 00007f32fa3136d0
Modules linked in: snd_seq_midi snd_seq_midi_event snd_usb_audio snd_usbmidi_lib snd_rawmidi snd_seq_dummy snd_hrtimer nf_conntrack_netlink xt_addrtype br_netfilter rfcomm 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 overlay nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter vboxdrv(OE) cmac bnep sunrpc squashfs loop intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm btusb irqbypass btrtl rapl mei_hdcp btbcm intel_cstate iTCO_wdt intel_pmc_bxt iTCO_vendor_support intel_uncore btintel bluetooth uvcvideo
 videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev mc pcspkr wmi_bmof i2c_i801 i2c_smbus ecdh_generic ecc iwlmvm joydev mac80211 lpc_ich libarc4 iwlwifi snd_hda_codec_realtek cfg80211 snd_hda_codec_generic snd_hda_codec_hdmi ledtrig_audio snd_hda_intel snd_intel_dspcfg soundwire_intel soundwire_generic_allocation snd_soc_core snd_compress snd_pcm_dmaengine soundwire_cadence snd_hda_codec snd_hda_core ac97_bus snd_hwdep snd_seq snd_seq_device snd_pcm mei_me mei snd_timer snd soundcore ideapad_laptop platform_profile sparse_keymap rfkill acpi_pad ip_tables amdgpu iommu_v2 gpu_sched i915 radeon drm_ttm_helper ttm i2c_algo_bit drm_kms_helper cec drm rtsx_pci_sdmmc mmc_core crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel r8169 rtsx_pci serio_raw wmi video i2c_hid fuse
CR2: 0000000000000000