Backtrace

BUG: kernel NULL pointer dereference, address: 0000000000000068
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 0 P4D 0 
Oops: Oops: 0002 [#1] SMP PTI
CPU: 0 UID: 0 PID: 134322 Comm: kworker/0:4 Not tainted 6.19.14-108.fc42.x86_64 #1 PREEMPT(lazy) 
Hardware name: LENOVO 20L8S1G100/20L8S1G100, BIOS N22ET85W (1.62 ) 09/05/2025
Workqueue: events ucsi_handle_connector_change [typec_ucsi]
RIP: 0010:down_write+0x20/0x60
Code: 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 53 48 89 fb 2e 2e 2e 31 c0 65 ff 05 c7 7d 42 02 31 c0 ba 01 00 00 00 <f0> 48 0f b1 13 75 26 65 48 8b 05 99 7d 42 02 48 89 43 08 65 ff 0d
RSP: 0018:ffffcf2b806b3da8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000068 RCX: 00000000820001ff
RDX: 0000000000000001 RSI: ffffffffc054aa1a RDI: 0000000000000068
RBP: 0000000000000068 R08: 0000000000000000 R09: ffffffffb85bdd5e
R10: ffff89f93d1dbf60 R11: fffff64c0ff476c0 R12: ffff89f6424540b0
R13: ffff89f640211e05 R14: 0000000000000000 R15: ffff89f6528e8030
FS:  0000000000000000(0000) GS:ffff89fa067ed000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000068 CR3: 00000001afa98003 CR4: 00000000003726f0
Call Trace:
 <TASK>
 kernfs_remove_by_name_ns+0x49/0xe0
 typec_unregister_partner+0x69/0x100 [typec]
 ucsi_unregister_partner+0x103/0x140 [typec_ucsi]
 ucsi_handle_connector_change+0x351/0x3e0 [typec_ucsi]
 process_one_work+0x192/0x350
 worker_thread+0x196/0x300
 ? __pfx_worker_thread+0x10/0x10
 kthread+0xfc/0x240
 ? __pfx_kthread+0x10/0x10
 ? __pfx_kthread+0x10/0x10
 ret_from_fork+0x130/0x1a0
 ? __pfx_kthread+0x10/0x10
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Modules linked in: r8153_ecm cdc_ether usbnet r8152 mii snd_usb_audio snd_usbmidi_lib snd_ump snd_rawmidi hid_logitech_hidpp hid_lenovo hid_logitech_dj rtw88_8822bu rtw88_usb rtw88_8822b rtw88_core cdc_acm exfat uinput rfcomm snd_seq_dummy snd_hrtimer 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 nf_tables qrtr sunrpc bnep snd_hda_codec_intelhdmi snd_hda_codec_alc269 snd_hda_scodec_component snd_hda_codec_realtek_lib snd_hda_codec_generic snd_hda_intel snd_sof_pci_intel_skl snd_sof_intel_hda_generic soundwire_intel snd_sof_intel_hda_sdw_bpt snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_intel_hda_mlink snd_sof_intel_hda snd_hda_codec_hdmi soundwire_cadence snd_sof_pci snd_sof_xtensa_dsp snd_sof snd_sof_utils snd_soc_acpi_intel_match snd_soc_acpi_intel_sdca_quirks soundwire_generic_allocation snd_soc_sdw_utils snd_soc_acpi crc8
 soundwire_bus snd_soc_sdca intel_uncore_frequency intel_uncore_frequency_common intel_pmc_core_pltdrv intel_pmc_core snd_soc_avs pmt_telemetry pmt_discovery pmt_class intel_pmc_ssram_telemetry intel_vsec snd_soc_hda_codec intel_tcc_cooling iwlmvm binfmt_misc snd_hda_ext_core x86_pkg_temp_thermal snd_hda_codec intel_powerclamp coretemp snd_hda_core elan_i2c vfat iTCO_wdt kvm_intel mei_hdcp snd_intel_dspcfg mei_wdt intel_pmc_bxt ee1004 mei_pxp intel_rapl_msr fat iTCO_vendor_support mac80211 uvcvideo kvm snd_intel_sdw_acpi snd_hwdep uvc videobuf2_vmalloc btusb videobuf2_memops libarc4 videobuf2_v4l2 snd_soc_core videobuf2_common irqbypass btmtk rapl btrtl videodev snd_compress intel_cstate ac97_bus btbcm snd_pcm_dmaengine btintel mc iwlwifi intel_uncore processor_thermal_device_pci_legacy bluetooth snd_seq pcspkr snd_seq_device processor_thermal_device think_lmi processor_thermal_wt_hint snd_ctl_led wmi_bmof firmware_attributes_class intel_wmi_thunderbolt snd_pcm platform_temperature_control
 processor_thermal_soc_slider cfg80211 processor_thermal_rfim i2c_i801 processor_thermal_rapl e1000e mei_me intel_rapl_common i2c_smbus snd_timer thinkpad_acpi processor_thermal_wt_req idma64 processor_thermal_power_floor sparse_keymap mei platform_profile processor_thermal_mbox intel_xhci_usb_role_switch intel_pch_thermal intel_soc_dts_iosf rfkill snd soundcore int3403_thermal int340x_thermal_zone int3400_thermal acpi_thermal_rel acpi_pad joydev loop nfnetlink zram lz4hc_compress lz4_compress dm_crypt i915 ucsi_acpi i2c_algo_bit uas nvme usb_storage drm_buddy typec_ucsi ghash_clmulni_intel video ttm typec drm_display_helper nvme_core thunderbolt nvme_keyring nvme_auth intel_oc_wdt cec hkdf wmi serio_raw i2c_dev fuse
CR2: 0000000000000068