Backtrace

BUG: kernel NULL pointer dereference, address: 0000000000000020
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] PREEMPT SMP PTI
CPU: 0 PID: 64065 Comm: kworker/0:2 Tainted: G           OE      6.8.7-300.fc40.x86_64 #1
Hardware name: LENOVO 20244/INVALID, BIOS 7BCN38WW(V2.04) 12/10/2013
Workqueue: usb_hub_wq hub_event
RIP: 0010:xhci_reserve_bandwidth+0x28e/0x650
Code: 8b 48 10 44 8b 40 14 4c 89 ef 48 c7 c2 d0 b6 bb 89 48 c7 c6 b0 08 c4 88 e8 0f 47 01 00 48 8b 3c 24 8b 74 24 20 31 d2 8d 46 ff <8b> 4f 20 44 8b 77 08 41 89 c3 03 07 f7 f6 ba 80 00 00 00 85 c9 75
RSP: 0018:ffffa2e9882cf920 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8bfd87c16000 RCX: ffffa2e9882cf8d0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff8bfd80a1e000 R08: ffff8bfd80a1e020 R09: 0000000000000000
R10: ffff8bfe09e23a20 R11: 00000000000000aa R12: ffffa2e9882cf960
R13: ffff8bfd879cd260 R14: 000000000000001f R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8bfea7200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000020 CR3: 000000004f422001 CR4: 00000000001706f0
Call Trace:
 <TASK>
 ? __die+0x23/0x70
 ? page_fault_oops+0x174/0x530
 ? exc_page_fault+0x7f/0x180
 ? asm_exc_page_fault+0x26/0x30
 ? xhci_reserve_bandwidth+0x28e/0x650
 ? metadata_update_state+0x7d/0xf0
 ? lookup_address_in_pgd+0x36/0x190
 xhci_configure_endpoint+0x99/0x710
 xhci_endpoint_reset+0x360/0x630
 ? hub_port_init+0x37d/0xf60
 usb_enable_endpoint+0x7d/0x80
 hub_event+0x148e/0x1cd0
 process_one_work+0x170/0x330
 worker_thread+0x273/0x3c0
 ? __pfx_worker_thread+0x10/0x10
 kthread+0xe8/0x120
 ? __pfx_kthread+0x10/0x10
 ret_from_fork+0x34/0x50
 ? __pfx_kthread+0x10/0x10
 ret_from_fork_asm+0x1b/0x30
 </TASK>
Modules linked in: cdc_acm uinput rfcomm snd_seq_dummy snd_hrtimer 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_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) qrtr bnep intel_rapl_msr snd_hda_codec_hdmi intel_rapl_common x86_pkg_temp_thermal snd_hda_codec_conexant intel_powerclamp coretemp snd_hda_codec_generic snd_hda_intel kvm_intel snd_intel_dspcfg iwldvm snd_intel_sdw_acpi iTCO_wdt kvm snd_hda_codec at24 uvcvideo mac80211 sunrpc intel_pmc_bxt btusb mei_hdcp mei_pxp btrtl libarc4 uvc snd_hda_core iTCO_vendor_support videobuf2_vmalloc btintel videobuf2_memops videobuf2_v4l2 videobuf2_common btbcm snd_hwdep iwlwifi btmtk irqbypass snd_seq bluetooth rapl videodev intel_cstate snd_seq_device i2c_i801 intel_uncore pcspkr i2c_smbus mc cfg80211 snd_pcm binfmt_misc snd_timer mei_me snd mei rtsx_usb_ms ideapad_laptop memstick
 lpc_ich soundcore sparse_keymap platform_profile rfkill joydev squashfs loop nfnetlink zram mmc_block i915 rtsx_usb_sdmmc mmc_core crct10dif_pclmul crc32_pclmul crc32c_intel polyval_clmulni polyval_generic i2c_algo_bit ghash_clmulni_intel drm_buddy sha512_ssse3 ttm sha256_ssse3 rtsx_usb sha1_ssse3 drm_display_helper alx mdio cec video wmi serio_raw ip6_tables ip_tables fuse
CR2: 0000000000000020