Backtrace

BUG: unable to handle page fault for address: ffff90cc75c5325f
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 117a01067 P4D 117a01067 PUD 0 
Oops: 0000 [#1] SMP PTI
CPU: 1 PID: 15772 Comm: plymouthd Tainted: G          IOE     5.12.8-300.fc34.x86_64 #1
Hardware name: FUJITSU LIFEBOOK E781/FJNB222, BIOS Version 1.22 04/19/2013
RIP: 0010:kobj_lookup+0x115/0x160
Code: e8 80 bb 99 ff 48 8b 44 24 10 48 85 c0 75 3e 49 8b bc 24 f8 07 00 00 e8 f9 94 40 00 48 8b 44 24 18 49 8b 2c c4 48 85 ed 74 14 <8b> 45 08 39 d8 0f 86 33 ff ff ff 48 8b 6d 00 48 85 ed 75 ec 49 8b
RSP: 0018:ffffb177406b3c60 EFLAGS: 00010282
RAX: 00000000e64b464d RBX: 000000000040003f RCX: 0000000000000004
RDX: ffff9097d22d8000 RSI: 000000000040003f RDI: ffffffff9dbef800
RBP: ffff90cc75c53257 R08: 00000000000000f6 R09: 0000000000000064
R10: ffffb177406b3d00 R11: 0000003336797474 R12: ffff9097c004c000
R13: ffff9097c13ace80 R14: ffffb177406b3cc4 R15: ffffb177406b3ef4
FS:  00007fad19ce4800(0000) GS:ffff9098e6240000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff90cc75c5325f CR3: 0000000201ae6004 CR4: 00000000000606e0
Call Trace:
 chrdev_open+0x137/0x220
 ? cdev_device_add+0x90/0x90
 do_dentry_open+0x14b/0x360
 path_openat+0xa59/0xfc0
 ? bpf_lsm_capset+0x10/0x10
 ? capable+0x2f/0x50
 do_filp_open+0x8f/0x120
 ? __check_object_size+0x136/0x150
 do_sys_openat2+0x7a/0x130
 __x64_sys_openat+0x45/0x70
 do_syscall_64+0x33/0x40
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fad1a05d03b
Code: 25 00 00 41 00 3d 00 00 41 00 74 4b 64 8b 04 25 18 00 00 00 85 c0 75 67 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 91 00 00 00 48 8b 54 24 28 64 48 2b 14 25
RSP: 002b:00007ffe82826a50 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055715993faf0 RCX: 00007fad1a05d03b
RDX: 0000000000000902 RSI: 0000557159940a20 RDI: 00000000ffffff9c
RBP: 0000557159940a20 R08: 0000557159941fc0 R09: 00007fad1a12fa60
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000902
R13: 0000000000000016 R14: 0000000000000000 R15: 00007fad1a156e20
Modules linked in: uinput rfcomm snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc 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 vfat fat qcserial usb_wwan intel_rapl_msr intel_rapl_common btusb btrtl x86_pkg_temp_thermal btbcm intel_powerclamp btintel coretemp bluetooth kvm_intel at24 mei_wdt mei_hdcp ppdev kvm iTCO_wdt intel_pmc_bxt iTCO_vendor_support uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common iwldvm videodev irqbypass rapl intel_cstate mac80211 intel_uncore ecdh_generic ecc mc
 libarc4 snd_hda_codec_hdmi snd_hda_codec_realtek iwlwifi snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi joydev snd_hda_codec i2c_i801 pcspkr i2c_smbus cfg80211 snd_hda_core snd_hwdep snd_seq snd_seq_device snd_pcm lpc_ich rfkill snd_timer parport_pc snd mei_me parport mei tpm_infineon soundcore fujitsu_laptop sparse_keymap binfmt_misc zram ip_tables dm_crypt trusted i915 hid_logitech_hidpp rtsx_pci_sdmmc i2c_algo_bit drm_kms_helper crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel cec serio_raw qmi_wwan sdhci_pci cqhci cdc_wdm sdhci usbnet mmc_core drm mii rtsx_pci e1000e hid_logitech_dj video fuse [last unloaded: vboxdrv]
CR2: ffff90cc75c5325f