Backtrace

BUG: kernel NULL pointer dereference, address: 0000000000000010
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#2] SMP PTI
CPU: 2 PID: 4339 Comm: gnome-shell Tainted: G      D W         5.11.7-200.fc33.x86_64 #1
Hardware name: Dell Inc. Inspiron 5547/0K5C1C, BIOS A04 05/09/2014
RIP: 0010:ttm_resource_free+0x1c/0x50 [ttm]
Code: dc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 0f 1f 44 00 00 53 48 63 56 24 48 89 f3 48 8b 87 48 01 00 00 48 8b bc d0 80 00 00 00 <48> 8b 47 10 48 85 c0 74 0e 48 8b 40 08 48 85 c0 74 05 e8 fd 85 91
RSP: 0018:ffffb86d83c33d80 EFLAGS: 00010286
RAX: ffff955a298c55b8 RBX: ffff955a2a06e1d0 RCX: 00000000802a001f
RDX: 0000000000000000 RSI: ffff955a2a06e1d0 RDI: 0000000000000000
RBP: ffff955a298c55b8 R08: 0000000000000001 R09: 0000000000000000
R10: ffff9559eb308240 R11: 0000000000000001 R12: ffff955a2a3ca7d0
R13: ffff955a2a06e238 R14: ffff955a2a06e058 R15: ffff955a2a06e1c8
FS:  0000000000000000(0000) GS:ffff955ad7280000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000010 CR3: 0000000194f74002 CR4: 00000000001706e0
Call Trace:
 ttm_bo_release+0x19f/0x340 [ttm]
 ttm_bo_vm_close+0x15/0x30 [ttm]
 remove_vma+0x31/0x70
 exit_mmap+0xd4/0x1c0
 mmput+0x61/0x140
 do_exit+0x30d/0xac0
 do_group_exit+0x33/0xa0
 __x64_sys_exit_group+0x14/0x20
 do_syscall_64+0x33/0x40
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f671d601211
Code: Unable to access opcode bytes at RIP 0x7f671d6011e7.
RSP: 002b:00007ffd9385bae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f671d6f9490 RCX: 00007f671d601211
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffffffffff88 R09: 0000000000000000
R10: 00007f671ccee84e R11: 0000000000000246 R12: 00007f671d6f9490
R13: 0000000000000886 R14: 00007f671d6f9968 R15: 0000000000000000
Modules linked in: uinput rfcomm xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp tun 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 ccm 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_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel intel_rapl_msr intel_rapl_common snd_intel_dspcfg soundwire_intel x86_pkg_temp_thermal intel_powerclamp soundwire_generic_allocation snd_soc_core mt7601u coretemp uvcvideo kvm_intel iTCO_wdt snd_compress mei_hdcp videobuf2_vmalloc intel_pmc_bxt videobuf2_memops at24 snd_pcm_dmaengine videobuf2_v4l2 soundwire_cadence iTCO_vendor_support
 vfat kvm ath3k fat snd_hda_codec ath9k videobuf2_common btusb btrtl snd_hda_core ath9k_common dell_laptop ac97_bus snd_hwdep ath9k_hw ledtrig_audio btbcm irqbypass snd_seq videodev dell_smm_hwmon btintel rapl mac80211 intel_cstate bluetooth snd_seq_device intel_uncore snd_pcm dell_wmi dell_smbios joydev snd_timer dcdbas mc hid_multitouch ath snd ecdh_generic cfg80211 mei_me wmi_bmof sparse_keymap dell_wmi_descriptor ecc pcspkr i2c_i801 soundcore mei i2c_smbus lpc_ich libarc4 dell_rbtn rfkill zram ip_tables amdgpu i915 drm_ttm_helper ttm iommu_v2 gpu_sched i2c_algo_bit drm_kms_helper cec drm crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel serio_raw wmi video i2c_hid pinctrl_lynxpoint fuse
CR2: 0000000000000010