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] SMP NOPTI
CPU: 2 PID: 15657 Comm: kworker/2:2 Not tainted 5.14.9-200.fc34.x86_64 #1
Hardware name: LENOVO 20U9005MUS/20U9005MUS, BIOS N2WET29W (1.19 ) 06/21/2021
Workqueue: usb_hub_wq hub_event
RIP: 0010:strcmp+0xc/0x20
Code: 06 49 89 f8 48 83 c6 01 48 83 c7 01 88 47 ff 84 c0 75 eb 4c 89 c0 c3 0f 1f 80 00 00 00 00 31 c0 eb 08 48 83 c0 01 84 d2 74 0f <0f> b6 14 07 3a 14 06 74 ef 19 c0 83 c8 01 c3 31 c0 c3 66 90 48 85
RSP: 0018:ffffb83a4646fd98 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff9a5c8d306dc0 RCX: ffff9a5c4285edc8
RDX: 0000000000000001 RSI: ffffffff8567c848 RDI: 0000000000000000
RBP: ffff9a5c8d306dc0 R08: ffff9a5eaf6ab060 R09: ffff9a5d6bfe75ac
R10: 000000000000000b R11: 000000000000000b R12: ffff9a5eaf6ab040
R13: ffff9a5eaf6b4600 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff9a5eaf680000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000001f0c10004 CR4: 00000000003706e0
Call Trace:
 hub_event+0x6d/0x1770
 ? __schedule+0x31e/0x1500
 ? add_timer_on+0xdb/0x100
 process_one_work+0x1e9/0x390
 worker_thread+0x53/0x3e0
 ? process_one_work+0x390/0x390
 kthread+0x124/0x150
 ? set_kthread_struct+0x40/0x40
 ret_from_fork+0x1f/0x30
Modules linked in: snd_usb_audio snd_usbmidi_lib snd_rawmidi cdc_ether usbnet r8152 mii veth nf_conntrack_netlink xt_addrtype br_netfilter overlay uhid uinput rfcomm snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc 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 bnep sunrpc vfat fat squashfs loop snd_ctl_led snd_soc_skl_hda_dsp snd_soc_intel_hda_dsp_common snd_soc_hdac_hdmi snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_soc_dmic snd_sof_pci_intel_cnl snd_sof_intel_hda_common soundwire_intel soundwire_generic_allocation
 soundwire_cadence snd_sof_intel_hda snd_sof_pci snd_sof_xtensa_dsp snd_sof soundwire_bus snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core snd_compress intel_tcc_cooling ac97_bus x86_pkg_temp_thermal snd_pcm_dmaengine intel_powerclamp snd_hda_intel coretemp iTCO_wdt snd_intel_dspcfg snd_intel_sdw_acpi intel_pmc_bxt kvm_intel iTCO_vendor_support mei_hdcp intel_rapl_msr snd_hda_codec iwlmvm kvm snd_hda_core irqbypass rapl snd_hwdep mac80211 intel_cstate snd_seq btusb snd_seq_device libarc4 btrtl intel_uncore pcspkr uvcvideo snd_pcm wmi_bmof think_lmi btbcm iwlwifi firmware_attributes_class intel_wmi_thunderbolt btintel videobuf2_vmalloc i2c_i801 videobuf2_memops snd_timer i2c_smbus thunderbolt bluetooth videobuf2_v4l2 videobuf2_common mei_me mei cfg80211 videodev joydev idma64 processor_thermal_device_pci_legacy mc thinkpad_acpi ecdh_generic processor_thermal_device processor_thermal_rfim
 processor_thermal_mbox platform_profile ucsi_acpi intel_pch_thermal processor_thermal_rapl typec_ucsi intel_rapl_common ledtrig_audio intel_soc_dts_iosf typec rfkill snd soundcore int3403_thermal soc_button_array int340x_thermal_zone intel_hid acpi_pad sparse_keymap int3400_thermal acpi_thermal_rel zram ip_tables dm_crypt trusted asn1_encoder i915 hid_multitouch i2c_algo_bit ttm drm_kms_helper crct10dif_pclmul crc32_pclmul cec crc32c_intel drm e1000e ghash_clmulni_intel nvme serio_raw nvme_core i2c_hid_acpi i2c_hid wmi video pinctrl_cannonlake fuse
CR2: 0000000000000000