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: 5 PID: 144 Comm: kworker/5:1 Not tainted 5.12.8-300.fc34.x86_64 #1
Hardware name: LENOVO 20N3SBB300/20N3SBB300, BIOS N2IET92W (1.70 ) 09/21/2020
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: 0000:ffffa9db8033fd98 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8be4483f51c0 RCX: ffff8be4483f71c8
RDX: 0000000000000001 RSI: ffffffff9245f78b RDI: 0000000000000000
RBP: ffff8be4483f51c0 R08: ffff8bef9c769d60 R09: ffff8be440f6bd2c
R10: 000000000000000b R11: 000000000000000b R12: ffff8bef9c769d40
R13: ffff8bef9c773200 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8bef9c740000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000001c3ca6005 CR4: 00000000003706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 hub_event+0x6d/0x1760
 ? check_preempt_wakeup+0xf8/0x250
 ? psi_task_change+0x84/0xc0
 ? ttwu_do_wakeup+0x17/0x130
 ? try_to_wake_up+0x1c1/0x4f0
 ? mutex_lock+0xe/0x30
 process_one_work+0x1ec/0x380
 worker_thread+0x53/0x3e0
 ? process_one_work+0x380/0x380
 kthread+0x11b/0x140
 ? kthread_associate_blkcg+0xa0/0xa0
 ret_from_fork+0x1f/0x30
Modules linked in: uinput rfcomm snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc ccm 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 cmac ip6table_filter ip6_tables iptable_filter bnep tun sunrpc vfat fat squashfs loop 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 snd_sof_xtensa_dsp snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_acpi_intel_match iTCO_wdt x86_pkg_temp_thermal snd_soc_acpi intel_powerclamp intel_pmc_bxt coretemp ee1004
 iTCO_vendor_support mei_wdt snd_hda_codec_hdmi intel_rapl_msr mei_hdcp snd_soc_core kvm_intel iwlmvm snd_hda_codec_realtek snd_hda_codec_generic snd_compress kvm snd_pcm_dmaengine ac97_bus mac80211 snd_hda_intel snd_intel_dspcfg irqbypass snd_usb_audio snd_intel_sdw_acpi rapl snd_hda_codec intel_cstate snd_hda_core uvcvideo snd_usbmidi_lib libarc4 snd_hwdep intel_uncore snd_rawmidi videobuf2_vmalloc i2c_i801 videobuf2_memops snd_seq intel_wmi_thunderbolt wmi_bmof pcspkr snd_seq_device videobuf2_v4l2 i2c_smbus btusb iwlwifi snd_pcm btrtl btbcm joydev videobuf2_common btintel snd_timer bluetooth thunderbolt videodev cfg80211 mei_me mc processor_thermal_device mei ecdh_generic processor_thermal_rfim idma64 ecc processor_thermal_mbox ucsi_acpi thinkpad_acpi processor_thermal_rapl typec_ucsi intel_rapl_common platform_profile ledtrig_audio intel_soc_dts_iosf intel_pch_thermal typec snd soundcore int3403_thermal rfkill int340x_thermal_zone acpi_pad int3400_thermal
 acpi_thermal_rel zram ip_tables r8152 mii i915 crct10dif_pclmul crc32_pclmul rtsx_pci_sdmmc crc32c_intel mmc_core i2c_algo_bit drm_kms_helper ghash_clmulni_intel serio_raw cec e1000e drm rtsx_pci wmi pinctrl_cannonlake video fuse
CR2: 0000000000000000