Backtrace

stack segment: 0000 [#1] PREEMPT SMP PTI
CPU: 3 PID: 98209 Comm: serial Not tainted 6.0.12-100.fc35.x86_64 #1
Hardware name: Acer Aspire TC-710/Aspire TC-710, BIOS R01-A4                  05/18/2016
RIP: 0010:kobj_lookup+0x115/0x160
Code: e8 30 7a 8b ff 48 8b 44 24 10 48 85 c0 75 3e 49 8b bc 24 f8 07 00 00 e8 99 f6 48 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:ffffb3c503823b88 EFLAGS: 00010202
RAX: 000000003948c245 RBX: 0000000000400040 RCX: 0000000000000004
RDX: ffff9e7840bad280 RSI: 0000000000400040 RDI: ffffffff9c1da640
RBP: 0f48f8508d48c085 R08: 0000000000000064 R09: ffff9e78416d6b70
R10: ffffb3c503823c20 R11: 0000000000000001 R12: ffff9e784005c800
R13: ffffffff9a3b7b90 R14: ffffb3c503823be4 R15: ffffb3c503823e14
FS:  00007f21020fcac0(0000) GS:ffff9e7994d80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f21026694e0 CR3: 000000011a9c6004 CR4: 00000000003706e0
Call Trace:
 <TASK>
 ? cdev_device_add+0x90/0x90
 chrdev_open+0x12d/0x230
 ? cdev_device_add+0x90/0x90
 do_dentry_open+0x15c/0x430
 path_openat+0xa81/0x1070
 ? __mod_lruvec_page_state+0xa7/0x1a0
 ? page_add_file_rmap+0x9c/0x360
 do_filp_open+0x9f/0x130
 ? __check_object_size+0x1f8/0x250
 do_sys_openat2+0x82/0x140
 __x64_sys_openat+0x45/0x70
 do_syscall_64+0x59/0x90
 ? handle_mm_fault+0xb2/0x2a0
 ? do_user_addr_fault+0x1ee/0x6a0
 ? syscall_exit_to_user_mode+0x17/0x40
 ? exc_page_fault+0x71/0x170
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f210273e6eb
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:00007ffd7031e0e0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007ffd7031faa0 RCX: 00007f210273e6eb
RDX: 0000000000000901 RSI: 00007ffd7031faa0 RDI: 00000000ffffff9c
RBP: 00007ffd7031faa0 R08: 0000000000000000 R09: 00007ffd7031def7
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000901
R13: 0000559be88c9004 R14: 0000559be88c9108 R15: 0000000000000001
 </TASK>
Modules linked in: usblp snd_seq_dummy snd_hrtimer rfcomm 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 vfat fat snd_usb_audio snd_usbmidi_lib snd_rawmidi btusb uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev mc joydev btrtl btbcm btintel btmtk bluetooth snd_hda_codec_realtek intel_rapl_msr iwlmvm snd_hda_codec_generic intel_rapl_common ledtrig_audio snd_hda_codec_hdmi mac80211 intel_tcc_cooling snd_hda_intel x86_pkg_temp_thermal libarc4 intel_powerclamp snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec iwlwifi snd_hda_core iTCO_wdt intel_pmc_bxt iTCO_vendor_support snd_hwdep snd_seq pktcdvd snd_seq_device coretemp snd_pcm kvm_intel mei_pxp mei_hdcp cfg80211 snd_timer mei_me kvm rfkill snd soundcore mei
 irqbypass i2c_i801 intel_pch_thermal rapl i2c_smbus wmi_bmof intel_cstate intel_uncore pcspkr acpi_pad zram ip_tables ums_realtek uas hid_logitech_hidpp usb_storage nouveau mxm_wmi i2c_algo_bit drm_ttm_helper ttm drm_display_helper drm_kms_helper crct10dif_pclmul crc32_pclmul crc32c_intel polyval_clmulni drm polyval_generic serio_raw ghash_clmulni_intel r8169 cec wmi video hid_logitech_dj ipmi_devintf ipmi_msghandler fuse