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: 0000 [#1] PREEMPT SMP PTI
CPU: 0 PID: 1021756 Comm: kworker/0:2 Tainted: G        W          6.9.11-200.fc40.x86_64 #1
Hardware name: LENOVO 20LH0018US/20LH0018US, BIOS R0SET51W (1.35 ) 02/09/2022
Workqueue: events ucsi_handle_connector_change [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:ffffbc681ff7bda8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000082000100
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff9aa4c1188f18 R09: 00000000820001fa
R10: 00000000820001fa R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffff9aa82fa3e050 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff9aa831400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000150428003 CR4: 00000000003706f0
Call Trace:
 <TASK>
 ? __die_body.cold+0x19/0x27
 ? page_fault_oops+0x15a/0x2c0
 ? __slab_free+0xdf/0x2e0
 ? exc_page_fault+0x7e/0x180
 ? asm_exc_page_fault+0x26/0x30
 ? strlen+0x4/0x30
 ? kobject_put+0xa0/0x1d0
 kernfs_name_hash+0x12/0xb0
 kernfs_find_ns+0x37/0xc0
 kernfs_remove_by_name_ns+0x4a/0xc0
 typec_unregister_partner+0x4c/0xe0 [typec]
 ucsi_unregister_partner+0x103/0x140 [typec_ucsi]
 ucsi_handle_connector_change+0x241/0x2b0 [typec_ucsi]
 process_one_work+0x17b/0x340
 worker_thread+0x266/0x3a0
 ? __pfx_worker_thread+0x10/0x10
 kthread+0xcf/0x100
 ? __pfx_kthread+0x10/0x10
 ret_from_fork+0x31/0x50
 ? __pfx_kthread+0x10/0x10
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Modules linked in: nft_reject_ipv4 nft_masq nf_nat_h323 nf_conntrack_h323 nf_nat_pptp nf_conntrack_pptp nf_nat_sip nf_conntrack_sip nf_nat_irc nf_conntrack_irc nf_nat_ftp nf_conntrack_ftp cdc_mbim cdc_wdm cdc_ncm cdc_ether usbnet mii tls xt_addrtype xt_nat xt_mark xt_comment veth tun overlay xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nft_compat nf_nat_tftp nf_conntrack_tftp bridge stp llc uinput rfcomm snd_seq_dummy snd_hrtimer iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi hid_lenovo 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 qrtr uhid bnep sunrpc binfmt_misc elan_i2c snd_sof_pci_intel_skl snd_sof_intel_hda_common soundwire_intel snd_sof_intel_hda_mlink soundwire_cadence snd_sof_intel_hda snd_sof_pci snd_sof_xtensa_dsp snd_sof snd_sof_utils soundwire_generic_allocation soundwire_bus snd_soc_avs
 snd_soc_hda_codec snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core iwlmvm snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core snd_hda_codec_hdmi snd_compress snd_ctl_led mac80211 snd_hda_codec_conexant ac97_bus snd_hda_codec_generic mei_pxp mei_hdcp iTCO_wdt intel_uncore_frequency snd_pcm_dmaengine mei_wdt intel_pmc_bxt intel_uncore_frequency_common iTCO_vendor_support intel_rapl_msr snd_hda_intel snd_intel_dspcfg intel_tcc_cooling libarc4 snd_intel_sdw_acpi snd_hda_codec x86_pkg_temp_thermal intel_powerclamp snd_hda_core snd_hwdep coretemp uvcvideo btusb snd_seq uvc videobuf2_vmalloc kvm_intel videobuf2_memops iwlwifi videobuf2_v4l2 snd_seq_device videobuf2_common btrtl think_lmi btintel rapl btbcm btmtk intel_cstate videodev intel_uncore pcspkr firmware_attributes_class snd_pcm hid_sensor_magn_3d hid_sensor_rotation ledtrig_audio hid_sensor_accel_3d hid_sensor_gyro_3d e1000e hid_sensor_als bluetooth mc hid_sensor_trigger cfg80211 wmi_bmof processor_thermal_device_pci_legacy
 processor_thermal_device processor_thermal_wt_hint processor_thermal_rfim hid_sensor_iio_common snd_timer industrialio_triggered_buffer intel_wmi_thunderbolt processor_thermal_rapl i2c_i801 kfifo_buf i2c_smbus industrialio intel_rapl_common mei_me processor_thermal_wt_req mei processor_thermal_power_floor intel_pch_thermal thinkpad_acpi intel_xhci_usb_role_switch vfat processor_thermal_mbox intel_soc_dts_iosf platform_profile fat rfkill snd int3403_thermal soundcore int340x_thermal_zone intel_pmc_core intel_vsec pmt_telemetry pmt_class int3400_thermal acpi_pad acpi_thermal_rel joydev loop nfnetlink zram hid_sensor_hub intel_ishtp_hid ip6_tables ip_tables kvmgt mdev kvm vfio_iommu_type1 vfio iommufd crct10dif_pclmul crc32_pclmul crc32c_intel polyval_clmulni rtsx_pci_sdmmc polyval_generic mmc_core nvme ghash_clmulni_intel sha512_ssse3 nvme_core ucsi_acpi intel_ish_ipc typec_ucsi sha256_ssse3 sha1_ssse3 intel_ishtp rtsx_pci nvme_auth typec serio_raw i915 wacom i2c_algo_bit drm_buddy video wmi ttm
 drm_display_helper cec fuse [last unloaded: kheaders]
CR2: 0000000000000000