Backtrace

BUG: kernel NULL pointer dereference, address: 0000000000000088
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#2] SMP PTI
CPU: 0 PID: 2331 Comm: gdbus Tainted: G      D W         5.14.10-300.fc35.x86_64 #1
Hardware name: Dell Inc. Latitude E7240/05PTPV, BIOS A29 06/13/2019
RIP: 0010:__mod_lruvec_page_state+0x4a/0x90
Code: 48 c1 e8 36 4c 8b 2c c5 a0 34 16 83 4c 89 c7 e8 6c d3 ff ff 48 85 c0 74 37 66 90 49 63 95 c0 a0 02 00 48 8b bc d0 b8 0f 00 00 <4c> 3b af 88 00 00 00 75 34 44 89 e2 89 ee e8 63 ff ff ff 5d 41 5c
RSP: 0018:ffffa5eb81203b30 EFLAGS: 00010282
RAX: ffff97ffc348d008 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000012 RDI: 0000000000000000
RBP: 0000000000000012 R08: ffffd823c50cd900 R09: fffffffffffffffa
R10: 0000000000000001 R11: 0000000000000000 R12: 00000000ffffffff
R13: ffff9800dedd3000 R14: 00007f4e03b11000 R15: ffffa5eb81203cc0
FS:  0000000000000000(0000) GS:ffff9800d6a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000088 CR3: 000000009de10003 CR4: 00000000001706f0
Call Trace:
 page_remove_rmap+0xdd/0x330
 unmap_page_range+0x6f0/0xe40
 unmap_vmas+0x6a/0xd0
 exit_mmap+0x86/0x1c0
 mmput+0x61/0x140
 do_exit+0x2e9/0xa90
 do_group_exit+0x33/0xa0
 get_signal+0x16b/0x890
 ? wake_up_q+0x90/0x90
 arch_do_signal_or_restart+0xfd/0x730
 ? vfs_read+0x14f/0x180
 exit_to_user_mode_prepare+0x11a/0x240
 syscall_exit_to_user_mode+0x18/0x40
 do_syscall_64+0x48/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f4e0c67a7ff
Code: Unable to access opcode bytes at RIP 0x7f4e0c67a7d5.
RSP: 002b:00007f4df1ff0d00 EFLAGS: 00000293 ORIG_RAX: 0000000000000007
RAX: fffffffffffffdfc RBX: 00007f4e0a60e071 RCX: 00007f4e0c67a7ff
RDX: 00000000ffffffff RSI: 0000000000000003 RDI: 00007f4e0c3eae20
RBP: 00007f4e0c3eae20 R08: 0000000000000000 R09: 00007f4df1ff0b90
R10: 00007ffc7a137080 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000003 R14: 00007f4df1ff0d70 R15: 00007f4e0c3b05b0
Modules linked in: uinput bnep snd_seq_dummy snd_hrtimer 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_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables nfnetlink qrtr ns intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel sunrpc kvm iwlmvm pn544_mei mei_phy pn544 hci btusb mac80211 nfc at24 mei_hdcp btrtl mei_wdt iTCO_wdt libarc4 intel_pmc_bxt btbcm ppdev btintel iTCO_vendor_support iwlwifi snd_ctl_led snd_hda_codec_realtek dell_laptop snd_hda_codec_generic snd_hda_codec_hdmi uvcvideo dell_smm_hwmon irqbypass videobuf2_vmalloc snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi videobuf2_memops bluetooth videobuf2_v4l2 videobuf2_common snd_hda_codec rapl intel_cstate dell_wmi intel_uncore cfg80211 ledtrig_audio snd_hda_core videodev snd_hwdep snd_seq dell_smbios dcdbas sparse_keymap
 wmi_bmof snd_seq_device joydev i2c_i801 dell_wmi_descriptor pcspkr snd_pcm mc mei_me i2c_smbus snd_timer lpc_ich ecdh_generic snd mei soundcore parport_pc parport dell_rbtn rfkill zram ip_tables i915 i2c_algo_bit ttm drm_kms_helper cec sdhci_pci crct10dif_pclmul crc32_pclmul drm crc32c_intel e1000e cqhci sdhci ghash_clmulni_intel mmc_core serio_raw wmi video fuse
CR2: 0000000000000088