Backtrace

BUG: kernel NULL pointer dereference, address: 0000000000000008
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#7] SMP PTI
CPU: 2 PID: 13549 Comm: GpuMemoryThread Tainted: G      D W         5.8.15-301.fc33.x86_64 #1
Hardware name: Dell Inc. Latitude E5570/06YF8N, BIOS 1.22.3 02/17/2020
RIP: 0010:anon_vma_interval_tree_remove+0x15a/0x2d0
Code: 00 00 4c 8b 42 10 4c 8b 4a 08 31 ff eb 18 48 89 42 18 48 8b 02 48 83 e0 fc 48 89 c2 74 49 4c 8b 40 10 4c 8b 48 08 48 8b 4a e0 <48> 8b 41 08 48 2b 01 48 8b 89 98 00 00 00 48 c1 e8 0c 48 8d 44 08
RSP: 0018:ffffb884027efc10 EFLAGS: 00010246
RAX: ffff9f63bee7f660 RBX: ffff9f61f7d1ca80 RCX: 0000000000000000
RDX: ffff9f63bee7f660 RSI: ffff9f63ea7def08 RDI: 0000000000000000
RBP: ffff9f61f7d1caa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: ffff9f633bdc7e69 R12: ffff9f61f7d1ca90
R13: ffff9f61da6bd528 R14: ffff9f61f7d1ca80 R15: ffff9f63ea7deec8
FS:  00007f8f297dd640(0000) GS:ffff9f6415e80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000008 CR3: 000000019ba0a002 CR4: 00000000003606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 unlink_anon_vmas+0xbd/0x1d0
 free_pgtables+0x8a/0xf0
 exit_mmap+0xa6/0x170
 mmput+0x61/0x140
 do_exit+0x2fa/0xaf0
 do_group_exit+0x33/0xa0
 get_signal+0x179/0x8d0
 do_signal+0x30/0x700
 ? __hrtimer_run_queues+0x149/0x280
 ? recalibrate_cpu_khz+0x10/0x10
 ? ktime_get+0x38/0xa0
 ? __x64_sys_futex+0x124/0x13d
 __prepare_exit_to_usermode+0x11f/0x1a0
 do_syscall_64+0x59/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f8f3e2fd6c2
Code: Bad RIP value.
RSP: 002b:00007f8f297dc2f0 EFLAGS: 00000282 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 0000000000000000 RCX: 00007f8f3e2fd6c2
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f8f297dc498
RBP: 00007f8f297dc470 R08: 0000000000000000 R09: 000055ddfe77b850
R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000000
R13: 00007f8f297dc448 R14: 00007f8f297dc498 R15: 00007f8f297dc320
Modules linked in: uinput rfcomm 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 cmac bnep sunrpc snd_hda_codec_hdmi iwlmvm snd_hda_codec_realtek snd_hda_codec_generic mac80211 snd_hda_intel snd_intel_dspcfg snd_hda_codec x86_pkg_temp_thermal btusb intel_powerclamp coretemp btrtl snd_hda_core kvm_intel uvcvideo libarc4 btbcm iTCO_wdt intel_pmc_bxt videobuf2_vmalloc videobuf2_memops btintel snd_hwdep iTCO_vendor_support iwlwifi videobuf2_v4l2 snd_seq ee1004 mei_hdcp intel_rapl_msr mei_wdt dell_laptop ppdev snd_seq_device videobuf2_common ledtrig_audio kvm bluetooth snd_pcm dell_smm_hwmon videodev cfg80211
 irqbypass rapl snd_timer dell_wmi ecdh_generic intel_cstate snd dell_smbios mc ecc intel_uncore i2c_i801 joydev processor_thermal_device dcdbas mei_me soundcore intel_wmi_thunderbolt i2c_smbus pcspkr sparse_keymap intel_rapl_common dell_wmi_descriptor wmi_bmof mei intel_soc_dts_iosf intel_pch_thermal parport_pc int3403_thermal parport dell_smo8800 int340x_thermal_zone dell_rbtn int3400_thermal rfkill acpi_thermal_rel acpi_pad zram ip_tables amdgpu iommu_v2 gpu_sched i915 radeon rtsx_pci_sdmmc mmc_core i2c_algo_bit drm_kms_helper crct10dif_pclmul crc32_pclmul cec crc32c_intel e1000e ghash_clmulni_intel ttm rtsx_pci serio_raw drm wmi video fuse
CR2: 0000000000000008