Backtrace

BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: Oops: 0000 [#1] SMP PTI
CPU: 1 UID: 0 PID: 8690 Comm: kworker/u32:7 Not tainted 6.17.7-200.fc42.x86_64 #1 PREEMPT(lazy) 
Hardware name: LENOVO 20LJS44P00/20LJS44P00, BIOS R0SET51W (1.35 ) 02/09/2022
Workqueue: USBC000:00-con1 ucsi_poll_worker [typec_ucsi]
RIP: 0010:strlen+0x4/0x30
Code: f7 75 ec 31 c0 c3 cc cc cc cc 48 89 f8 c3 cc cc cc cc 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <80> 3f 00 74 18 48 89 f8 0f 1f 40 00 48 83 c0 01 80 38 00 75 f7 48
RSP: 0018:ffffd21796f87d70 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000002000052
RDX: ffff8b196731aa00 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff8b190151b178 R09: 0000000002000052
R10: ffff8b190151b178 R11: fffffb09040546c0 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8b190bcce9c0
FS:  0000000000000000(0000) GS:ffff8b1ad1cc4000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000000882c003 CR4: 00000000003726f0
Call Trace:
 <TASK>
 kernfs_name_hash+0x12/0x90
 kernfs_find_ns+0x52/0xe0
 kernfs_remove_by_name_ns+0x5a/0xe0
 typec_unregister_partner+0x5a/0x100 [typec]
 ucsi_unregister_partner+0x103/0x140 [typec_ucsi]
 ucsi_check_connection+0xbc/0xd0 [typec_ucsi]
 ucsi_poll_worker+0x37/0x110 [typec_ucsi]
 process_one_work+0x18f/0x350
 worker_thread+0x25a/0x3a0
 ? __pfx_worker_thread+0x10/0x10
 kthread+0xf9/0x240
 ? __pfx_kthread+0x10/0x10
 ? __pfx_kthread+0x10/0x10
 ret_from_fork+0xf1/0x110
 ? __pfx_kthread+0x10/0x10
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Modules linked in: uinput rfcomm snd_seq_dummy snd_hrtimer nft_masq nft_reject_ipv4 act_csum cls_u32 sch_htb nf_nat_tftp nf_conntrack_tftp bridge stp llc nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_ct ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat iptable_mangle iptable_raw iptable_security ip6table_filter ip6_tables iptable_filter ip_tables snd_hda_codec_intelhdmi snd_hda_codec_conexant snd_hda_codec_generic cdc_ether usbnet snd_hda_intel snd_sof_pci_intel_skl snd_sof_intel_hda_generic soundwire_intel snd_sof_intel_hda_sdw_bpt qrtr snd_sof_intel_hda_common r8152 snd_usb_audio snd_soc_hdac_hda mii snd_sof_intel_hda_mlink snd_usbmidi_lib snd_sof_intel_hda snd_ump snd_hda_codec_hdmi snd_rawmidi soundwire_cadence bnep snd_sof_pci snd_sof_xtensa_dsp snd_sof snd_sof_utils snd_soc_acpi_intel_match uvcvideo snd_soc_acpi_intel_sdca_quirks intel_uncore_frequency soundwire_generic_allocation uvc intel_uncore_frequency_common btusb
 snd_soc_acpi videobuf2_vmalloc crc8 btrtl videobuf2_memops soundwire_bus intel_tcc_cooling btintel videobuf2_v4l2 snd_soc_sdca x86_pkg_temp_thermal btbcm videobuf2_common snd_soc_avs intel_powerclamp btmtk snd_soc_hda_codec videodev coretemp bluetooth snd_hda_ext_core sunrpc kvm_intel mc snd_hda_codec binfmt_misc iwlmvm snd_hda_core mac80211 snd_intel_dspcfg snd_intel_sdw_acpi kvm iTCO_wdt processor_thermal_device_pci_legacy intel_pmc_bxt snd_hwdep processor_thermal_device iTCO_vendor_support hid_sensor_magn_3d hid_sensor_rotation hid_sensor_accel_3d hid_sensor_als hid_sensor_gyro_3d snd_soc_core intel_rapl_msr processor_thermal_wt_hint libarc4 mei_hdcp mei_pxp irqbypass hid_sensor_trigger snd_ctl_led platform_temperature_control vfat snd_compress rapl hid_sensor_iio_common processor_thermal_rfim fat ac97_bus intel_cstate industrialio_triggered_buffer processor_thermal_rapl iwlwifi snd_pcm_dmaengine squashfs think_lmi snd_seq snd_seq_device thinkpad_acpi i2c_i801 snd_pcm kfifo_buf intel_uncore
 intel_rapl_common firmware_attributes_class intel_wmi_thunderbolt wmi_bmof e1000e i2c_smbus sparse_keymap cfg80211 processor_thermal_wt_req snd_timer industrialio mei_me processor_thermal_power_floor platform_profile intel_pmc_core processor_thermal_mbox mei pmt_telemetry intel_xhci_usb_role_switch intel_pch_thermal intel_soc_dts_iosf rfkill pmt_discovery int3403_thermal snd pmt_class soundcore int340x_thermal_zone intel_pmc_ssram_telemetry int3400_thermal acpi_thermal_rel intel_vsec acpi_pad joydev nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables loop dm_multipath nfnetlink zram lz4hc_compress lz4_compress dm_crypt hid_logitech_hidpp hid_logitech_dj hid_sensor_hub intel_ishtp_hid i915 ucsi_acpi nvme rtsx_pci_sdmmc i2c_algo_bit typec_ucsi nvme_core drm_buddy mmc_core wacom polyval_clmulni typec ttm nvme_keyring intel_ish_ipc rtsx_pci ghash_clmulni_intel drm_display_helper thunderbolt nvme_auth cec intel_ishtp video
 intel_oc_wdt wmi serio_raw scsi_dh_rdac scsi_dh_emc scsi_dh_alua i2c_dev fuse
CR2: 0000000000000000