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 PTI
CPU: 0 PID: 3342 Comm: kworker/0:3 Not tainted 5.8.15-301.fc33.x86_64 #1
Hardware name: FUJITSU LIFEBOOK E780/FJNB210, BIOS Version 1.18  09/06/2010
Workqueue: usb_hub_wq hub_event
RIP: 0010:hub_event+0x6d/0x1800
Code: 24 30 66 66 66 66 90 48 8b 04 24 48 8b 40 48 48 8b 00 48 8b 70 50 48 85 f6 75 03 48 8b 30 48 c7 c7 4b 70 44 86 b9 0d 00 00 00 <f3> a6 0f 97 c0 1c 00 84 c0 75 0e 48 8b 04 24 83 78 18 07 0f 84 02
RSP: 0018:ffffb5f50255fdb8 EFLAGS: 00010246
RAX: ffff9132062620b0 RBX: 0000000000000000 RCX: 000000000000000d
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffffffff8644704b
RBP: ffff9132a8e7b9c0 R08: ffff9132b3e29ca0 R09: ffff9132a85c01f4
R10: 0000000000000018 R11: 0000000000000018 R12: ffff9132b3e29c80
R13: ffff9132b3e32c00 R14: ffff9132a85c0180 R15: ffff9132a8e7b9c0
FS:  0000000000000000(0000) GS:ffff9132b3e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000012fa0a000 CR4: 00000000000006f0
Call Trace:
 ? finish_task_switch+0x7d/0x2a0
 process_one_work+0x1b4/0x370
 worker_thread+0x53/0x3e0
 ? process_one_work+0x370/0x370
 kthread+0x11b/0x140
 ? __kthread_bind_mask+0x60/0x60
 ret_from_fork+0x22/0x30
Modules linked in: uinput nls_utf8 udf rfcomm 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 cdc_ether usbnet mii sunrpc intel_powerclamp coretemp btusb snd_hda_codec_hdmi btrtl btbcm snd_hda_codec_realtek kvm_intel btintel snd_hda_codec_generic ledtrig_audio bluetooth kvm snd_hda_intel snd_intel_dspcfg snd_hda_codec irqbypass ecdh_generic iTCO_wdt mei_wdt intel_pmc_bxt iTCO_vendor_support gpio_ich rfkill ppdev snd_hda_core snd_hwdep intel_cstate ecc intel_uncore snd_seq qcserial usb_wwan snd_seq_device snd_pcm joydev pcspkr i2c_i801 intel_ips i2c_smbus lpc_ich mei_me snd_timer fujitsu_laptop parport_pc snd
 mei sparse_keymap parport soundcore acpi_cpufreq zram ip_tables i915 i2c_algo_bit drm_kms_helper cec drm sdhci_pci cqhci sdhci e1000e mmc_core serio_raw firewire_ohci uas firewire_core usb_storage yenta_socket crc_itu_t video fuse
CR2: 0000000000000000