Backtrace

BUG: unable to handle page fault for address: ffff9f0c12c51e7a
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] PREEMPT SMP PTI
CPU: 0 PID: 12704 Comm: plymouthd Not tainted 6.0.5-200.fc36.x86_64 #1
Hardware name: Dell Inc. Latitude E7440/03HFCG, BIOS A27 10/09/2018
RIP: 0010:kobj_lookup+0x111/0x160
Code: 24 08 49 89 c5 e8 ef 01 86 ff 4d 85 ed 75 3f 49 8b bc 24 f8 07 00 00 e8 9d 4f 49 00 48 8b 44 24 18 4d 8b 3c c4 4d 85 ff 74 14 <41> 8b 47 08 39 c3 0f 83 34 ff ff ff 4d 8b 3f 4d 85 ff 75 ec 49 8b
RSP: 0018:ffffbb9c00abfb78 EFLAGS: 00010286
RAX: 000000002e933f37 RBX: 0000000008800000 RCX: 0000000000000088
RDX: ffff9d5eda715180 RSI: 0000000008800000 RDI: ffffffff911da500
RBP: ffffffffffffffff R08: 0000000000000800 R09: ffff9d60389fde00
R10: 0000000000000000 R11: 0000000000000001 R12: ffff9d5e8005c800
R13: ffffffff8f3bf230 R14: 0000000008800000 R15: ffff9f0c12c51e72
FS:  00007f3241810740(0000) GS:ffff9d618ea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff9f0c12c51e7a CR3: 000000012da2c002 CR4: 00000000001706f0
Call Trace:
 <TASK>
 ? cdev_device_add+0x90/0x90
 chrdev_open+0x12f/0x220
 ? cdev_device_add+0x90/0x90
 do_dentry_open+0x1e5/0x410
 path_openat+0xc44/0x1380
 ? path_openat+0xb20/0x1380
 ? try_charge_memcg+0x413/0x7c0
 do_filp_open+0x9e/0x130
 do_sys_openat2+0x96/0x150
 __x64_sys_openat+0x5c/0x80
 do_syscall_64+0x5b/0x80
 ? handle_mm_fault+0xae/0x290
 ? do_user_addr_fault+0x1ef/0x690
 ? exc_page_fault+0x70/0x170
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f3241701628
Code: f0 25 00 00 41 00 3d 00 00 41 00 74 45 64 8b 04 25 18 00 00 00 85 c0 75 69 89 da 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 8c 00 00 00 48 8b 54 24 28 64 48 2b 14 25
RSP: 002b:00007ffd4a76dc20 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000102 RCX: 00007f3241701628
RDX: 0000000000000102 RSI: 00007f3241801d70 RDI: 00000000ffffff9c
RBP: 00007f3241801d70 R08: 00007f32417bb840 R09: cccccccccccccccd
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
R13: 0000000000000019 R14: 0000557169cc4290 R15: 0000000000000019
 </TASK>
Modules linked in: tls rfcomm 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 bnep sunrpc intel_rapl_msr pn544_mei mei_phy pn544 hci iTCO_wdt mei_hdcp mei_pxp nfc mei_wdt intel_rapl_common intel_pmc_bxt dell_laptop ppdev iTCO_vendor_support dell_smm_hwmon x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel iwlmvm vfat kvm fat mac80211 snd_ctl_led irqbypass libarc4 rapl snd_hda_codec_realtek intel_cstate snd_hda_codec_generic snd_hda_codec_hdmi intel_uncore btusb uvcvideo dell_wmi btrtl snd_hda_intel btbcm dell_smbios btintel snd_intel_dspcfg dcdbas btmtk snd_usb_audio snd_intel_sdw_acpi videobuf2_vmalloc ledtrig_audio snd_hda_codec sparse_keymap dell_wmi_descriptor wmi_bmof iwlwifi videobuf2_memops bluetooth snd_usbmidi_lib
 snd_hda_core videobuf2_v4l2 i2c_i801 snd_hwdep snd_rawmidi pcspkr snd_seq joydev i2c_smbus videobuf2_common snd_seq_device cfg80211 videodev snd_pcm mc mei_me lpc_ich snd_timer mei snd soundcore parport_pc parport dell_smo8800 dell_rbtn rfkill zram hid_logitech_hidpp i915 crct10dif_pclmul crc32_pclmul crc32c_intel polyval_clmulni polyval_generic sdhci_pci cqhci sdhci ghash_clmulni_intel drm_buddy drm_display_helper mmc_core e1000e serio_raw cec ttm wmi hid_logitech_dj video ip6_tables ip_tables fuse
CR2: ffff9f0c12c51e7a