Backtrace

BUG: kernel NULL pointer dereference, address: 0000000000000000
RIP: 0010:strcmp+0xc/0x20
#PF: supervisor read access in kernel mode
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
#PF: error_code(0x0000) - not-present page
RSP: 0000:ffffa877a02c7d98 EFLAGS: 00010246
PGD 0 
RAX: 0000000000000000 RBX: ffff994f011935c0 RCX: ffff99507bf2a620
P4D 0 
RDX: 0000000000000001 RSI: ffffffff9466f69a RDI: 0000000000000000
Oops: 0000 [#2] SMP PTI
RBP: ffff994f011935c0 R08: ffff99507bf2a620 R09: ffff99504981336c
CPU: 5 PID: 66312 Comm: kworker/5:1 Tainted: P      D W  OE     5.13.19-200.fc34.x86_64 #1
R10: 000000000000000b R11: 000000000000000b R12: ffff99507bf2a600
R13: ffff99507bf34200 R14: 0000000000000000 R15: 0000000000000000
Hardware name: HUAWEI MACH-WX9/MACH-WX9, BIOS 1.17 07/28/2018
FS:  0000000000000000(0000) GS:ffff99507bf00000(0000) knlGS:0000000000000000
Workqueue: usb_hub_wq hub_event
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000263c4e006 CR4: 00000000003706e0
RIP: 0010:strcmp+0xc/0x20
fbcon: Taking over console
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:ffffa877a449fd98 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff994f460295c0 RCX: ffff99507bf6a620
RDX: 0000000000000001 RSI: ffffffff9466f69a RDI: 0000000000000000
RBP: ffff994f460295c0 R08: ffff99507bf6a620 R09: ffff994f8b2bbf6c
R10: 000000000000000b R11: 000000000000000b R12: ffff99507bf6a600
R13: ffff99507bf74200 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff99507bf40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000016dc10001 CR4: 00000000003706e0
Call Trace:
 hub_event+0x6d/0x1770
 ? sched_clock_cpu+0xc/0xa0
 ? psi_task_switch+0xc5/0x240
 ? __switch_to_asm+0x42/0x70
 ? __switch_to+0x11b/0x460
 process_one_work+0x1ec/0x380
 worker_thread+0x53/0x3e0
 ? process_one_work+0x380/0x380
 kthread+0x127/0x150
 ? set_kthread_struct+0x40/0x40
 ret_from_fork+0x22/0x30
Modules linked in: snd_usb_audio snd_usbmidi_lib snd_rawmidi gspca_vc032x gspca_main r8153_ecm cdc_ether usbnet r8152 uas usb_storage mii vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) 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 bnep sunrpc vfat fat squashfs loop uvcvideo btusb btrtl btbcm videobuf2_vmalloc btintel videobuf2_memops videobuf2_v4l2 bluetooth videobuf2_common videodev ftdi_sio mc ecdh_generic ecc snd_hda_codec_hdmi
 snd_soc_skl iwlmvm snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc snd_soc_sst_dsp snd_ctl_led snd_soc_acpi_intel_match snd_soc_acpi snd_hda_codec_realtek snd_soc_core snd_hda_codec_generic intel_tcc_cooling mac80211 snd_compress snd_pcm_dmaengine x86_pkg_temp_thermal intel_powerclamp ac97_bus snd_hda_intel coretemp snd_intel_dspcfg snd_intel_sdw_acpi kvm_intel snd_hda_codec nvidia_drm(POE) nvidia_modeset(POE) iTCO_wdt snd_hda_core intel_pmc_bxt libarc4 nvidia_uvm(POE) snd_hwdep iTCO_vendor_support snd_seq mei_hdcp kvm intel_rapl_msr iwlwifi snd_seq_device snd_pcm irqbypass rapl snd_timer intel_cstate huawei_wmi cfg80211 intel_uncore ledtrig_audio pcspkr sparse_keymap wmi_bmof intel_wmi_thunderbolt snd i2c_i801 i2c_smbus soundcore processor_thermal_device nvidia(POE) spi_pxa2xx_platform processor_thermal_rfim rfkill mei_me dw_dmac processor_thermal_mbox joydev processor_thermal_rapl idma64 mei intel_rapl_common intel_xhci_usb_role_switch intel_pch_thermal
 intel_soc_dts_iosf acpi_als industrialio_triggered_buffer kfifo_buf int3403_thermal industrialio int340x_thermal_zone acpi_pad int3400_thermal acpi_thermal_rel dptf_power binfmt_misc zram ip_tables i915 hid_multitouch i2c_algo_bit drm_kms_helper crct10dif_pclmul crc32_pclmul crc32c_intel cec drm serio_raw ghash_clmulni_intel nvme nvme_core i2c_hid_acpi i2c_hid wmi video pinctrl_sunrisepoint fuse
CR2: 0000000000000000