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: 0 PID: 4694 Comm: ThreadPoolForeg Tainted: P        W IOE     5.11.18-300.fc34.x86_64 #1
Hardware name: Hewlett-Packard HP Notebook/80C2, BIOS F.27 07/05/2018
RIP: 0010:radeon_vm_fini+0x135/0x220 [radeon]
Code: e8 00 a7 12 da 4c 8b 7d 70 31 f6 49 8b bf 70 01 00 00 e8 5e 3c 6f da 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 42
RSP: 0018:ffff9d75c47e7c58 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff90d6b7d02c00 RCX: 0000000000000000
RDX: ffff90d640accf00 RSI: ffff90d6b7d02600 RDI: ffff90d6b7d02620
RBP: 0000000000000000 R08: 0000000000000000 R09: ffff9d75c47e7ba0
R10: 0000000000000000 R11: 000000000000005f R12: ffff90d6b7d02600
R13: ffff90d64a6b0000 R14: ffff90d6b7d02648 R15: dead000000000100
FS:  0000000000000000(0000) GS:ffff90d796c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000044a10004 CR4: 00000000003706f0
Call Trace:
 radeon_driver_postclose_kms+0x156/0x170 [radeon]
 drm_file_free.part.0+0x206/0x250 [drm]
 drm_release+0x65/0x110 [drm]
 __fput+0x94/0x240
 task_work_run+0x65/0xa0
 do_exit+0x35f/0xac0
 do_group_exit+0x33/0xa0
 get_signal+0x14f/0x8a0
 ? user_path_at_empty+0x3f/0x80
 ? avc_has_perm+0x6d/0x160
 arch_do_signal_or_restart+0xf2/0x700
 ? __check_object_size+0x46/0x150
 ? __x64_sys_futex+0x73/0x1b0
 exit_to_user_mode_prepare+0xde/0x1b0
 syscall_exit_to_user_mode+0x18/0x40
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f5c3d126a8a
Code: Unable to access opcode bytes at RIP 0x7f5c3d126a60.
RSP: 002b:00007f5c1a759370 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffdfc RBX: 00007f5c1a7594b0 RCX: 00007f5c3d126a8a
RDX: 0000000000000000 RSI: 0000000000000089 RDI: 00007f5c1a759638
RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000ffffffff
R10: 00007f5c1a7594b0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5c1a759638 R14: 0000000000000000 R15: 00007f5c1a7595e8
Modules linked in: rfcomm snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc 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 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 cmac bnep sunrpc vfat fat squashfs loop x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi kvm_intel snd_hda_intel snd_intel_dspcfg soundwire_intel at24 soundwire_generic_allocation mei_hdcp snd_soc_core wl(POE) iTCO_wdt kvm intel_pmc_bxt intel_rapl_msr iTCO_vendor_support snd_compress
 snd_pcm_dmaengine soundwire_cadence btusb cfg80211 snd_hda_codec snd_hda_core uvcvideo irqbypass ac97_bus rapl snd_hwdep videobuf2_vmalloc intel_cstate videobuf2_memops videobuf2_v4l2 btrtl snd_seq btbcm btintel bluetooth intel_uncore videobuf2_common hp_wmi snd_seq_device snd_pcm sparse_keymap videodev pcspkr joydev i2c_i801 ecdh_generic wmi_bmof processor_thermal_device mei_me processor_thermal_rfim ecc intel_pch_thermal processor_thermal_mbox mei i2c_smbus mc rfkill processor_thermal_rapl snd_timer intel_rapl_common snd int340x_thermal_zone lpc_ich intel_soc_dts_iosf soundcore acpi_pad int3400_thermal hp_wireless acpi_thermal_rel zram ip_tables amdgpu iommu_v2 gpu_sched i915 radeon i2c_algo_bit drm_ttm_helper ttm drm_kms_helper cec crct10dif_pclmul crc32_pclmul crc32c_intel drm ghash_clmulni_intel serio_raw r8169 wmi i2c_hid video fuse
CR2: 0000000000000000