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: 5239 Comm: kworker/0:0 Tainted: G        W         5.13.4-200.fc34.x86_64 #1
Hardware name: SAMSUNG ELECTRONICS CO., LTD. SQ45S70S/SQ45S70S, BIOS 13ST 03/20/2008
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:ffffad65c3683d98 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff98ef467db9c0 RCX: ffff98ef42c3b9c8
RDX: 0000000000000001 RSI: ffffffffa566fe0a RDI: 0000000000000000
RBP: ffff98ef467db9c0 R08: ffff98ef7bc2a620 R09: ffff98eedfc382ac
R10: 000000000000000b R11: 000000000000000b R12: ffff98ef7bc2a600
R13: ffff98ef7bc34100 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff98ef7bc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000000e1da000 CR4: 00000000000006f0
Call Trace:
 hub_event+0x6d/0x1770
 ? psi_task_switch+0xc5/0x240
 ? __switch_to_asm+0x42/0x70
 ? __switch_to+0x82/0x460
 ? __cond_resched+0x16/0x40
 ? mutex_lock+0xe/0x30
 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: 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 dm_crypt trusted asn1_encoder squashfs loop iTCO_wdt intel_pmc_bxt at24 iTCO_vendor_support coretemp kvm_intel snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi samsung_laptop snd_hda_codec kvm iwldvm snd_hda_core uvcvideo irqbypass mac80211 snd_hwdep videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 snd_seq videobuf2_common libarc4
 snd_seq_device snd_pcm iwlwifi videodev btusb btrtl btbcm joydev pcspkr wmi_bmof btintel bluetooth i2c_i801 snd_timer mc i2c_smbus cfg80211 snd r592 memstick lpc_ich rfkill soundcore acpi_cpufreq zram ip_tables hid_logitech_hidpp hid_logitech_dj i915 i2c_algo_bit drm_kms_helper sdhci_pci cqhci cec sdhci drm mmc_core firewire_ohci firewire_core serio_raw ata_generic yenta_socket pata_acpi crc_itu_t sky2 wmi video fuse
CR2: 0000000000000000