Backtrace

BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
RIP: 0010:strcmp+0xc/0x20
PGD 0 P4D 0 
Code: 75 f7 31 d2 44 0f b6 04 16 44 88 04 11 48 83 c2 01 45 84 c0 75 ee c3 cc 66 0f 1f 44 00 00 31 c0 eb 08 48 83 c0 01 84 d2 74 10 <0f> b6 14 07 3a 14 06 74 ef 19 c0 83 c8 01 c3 cc 31 c0 c3 cc 48 85
Oops: 0000 [#2] PREEMPT SMP PTI
RSP: 0000:ffffb68690dbbda8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff906c945435c0 RCX: 0000000000000000
CPU: 9 PID: 37637 Comm: kworker/9:2 Tainted: G      D W         5.18.9-200.fc36.x86_64 #1
RDX: 0000000000000001 RSI: ffffffffab6de5d5 RDI: 0000000000000000
Hardware name: Dell Inc. G5 5587/0M2MWX, BIOS 1.9.0 02/11/2019
RBP: ffff906c94540800 R08: 5e6174675e617274 R09: ffff906e0f87d4f4
R10: 000000000000000b R11: fefefefefefefeff R12: ffff906e2d03a900
Workqueue: usb_hub_wq hub_event
R13: ffff906c94540830 R14: ffff906e0f87d480 R15: ffff906c945435c0
RIP: 0010:strcmp+0xc/0x20
FS:  0000000000000000(0000) GS:ffff906e2d000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Code: 75 f7 31 d2 44 0f b6 04 16 44 88 04 11 48 83 c2 01 45 84 c0 75 ee c3 cc 66 0f 1f 44 00 00 31 c0 eb 08 48 83 c0 01 84 d2 74 10 <0f> b6 14 07 3a 14 06 74 ef 19 c0 83 c8 01 c3 cc 31 c0 c3 cc 48 85
CR2: 0000000000000000 CR3: 0000000402e10001 CR4: 00000000003706e0
RSP: 0000:ffffb686871d7da8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff906c945465c0 RCX: 0000000000000001
RDX: 0000000000000001 RSI: ffffffffab6de5d5 RDI: 0000000000000000
RBP: ffff906c94547800 R08: 5e6174675e617274 R09: ffff906deaa0bf74
R10: 000000000000000b R11: fefefefefefefeff R12: ffff906e2d07a900
R13: ffff906c94547830 R14: ffff906deaa0bf00 R15: ffff906c945465c0
FS:  0000000000000000(0000) GS:ffff906e2d040000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000402e10001 CR4: 00000000003706e0
Call Trace:
 <TASK>
 hub_event+0x63/0x1960
 ? _raw_spin_unlock+0x15/0x30
 ? finish_task_switch.isra.0+0x98/0x300
 process_one_work+0x1c7/0x380
 worker_thread+0x4d/0x380
 ? _raw_spin_lock_irqsave+0x23/0x50
 ? process_one_work+0x380/0x380
 kthread+0xe9/0x110
 ? kthread_complete_and_exit+0x20/0x20
 ret_from_fork+0x22/0x30
 </TASK>
Modules linked in: cdc_acm tls 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 nf_tables ebtable_nat ebtable_broute 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 nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ip_tables qrtr bnep sunrpc binfmt_misc vfat fat 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 snd_sof_utils 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 snd_ctl_led ac97_bus snd_pcm_dmaengine snd_hda_codec_realtek snd_hda_codec_hdmi snd_hda_codec_generic snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi intel_tcc_cooling iwlmvm snd_hda_codec mac80211 x86_pkg_temp_thermal snd_hda_core intel_powerclamp btusb btrtl coretemp btbcm libarc4 kvm_intel iTCO_wdt kvm btintel intel_pmc_bxt snd_hwdep btmtk iwlwifi bluetooth snd_seq snd_seq_device snd_pcm irqbypass rapl intel_cstate iTCO_vendor_support intel_uncore snd_timer iwlmei processor_thermal_device_pci_legacy uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev mc snd soundcore dell_laptop ecdh_generic mei_pxp mei_hdcp mei_me intel_rapl_msr ee1004 processor_thermal_device cfg80211 processor_thermal_rfim processor_thermal_mbox processor_thermal_rapl joydev intel_rapl_common rfkill int3403_thermal mei idma64 int340x_thermal_zone i2c_i801 intel_soc_dts_iosf i2c_smbus dell_wmi intel_pch_thermal ledtrig_audio
 pcspkr int3400_thermal dell_smbios wmi_bmof dcdbas intel_wmi_thunderbolt acpi_thermal_rel intel_hid dell_wmi_sysman dell_wmi_descriptor firmware_attributes_class sparse_keymap acpi_pad zram i915 drm_buddy drm_dp_helper alx hid_multitouch mxm_wmi crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel ucsi_acpi typec_ucsi serio_raw i2c_hid_acpi mdio ttm typec i2c_hid wmi video pinctrl_cannonlake fuse ipmi_devintf ipmi_msghandler
CR2: 0000000000000000