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: 9952 Comm: kworker/0:4 Not tainted 6.8.5-301.fc40.x86_64 #1
Hardware name: Positivo Informatica SA C14CR21/C14CR21, BIOS 1.00.08 10/11/2012
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 18 a5 bb 9a 48 c7 c6 80 fa c3 99 e8 0f 48 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:ffffb3f68d483920 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff88c0c26df000 RCX: ffffb3f68d4838d0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff88c0cda56000 R08: ffff88c0cda56020 R09: 0000000000000000
R10: ffff88c0cdc77cc0 R11: 00000000000000aa R12: ffffb3f68d483960
R13: ffff88c1c0f93260 R14: 000000000000001f R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88c1dba00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000020 CR3: 0000000012a78002 CR4: 00000000000606f0
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
 xhci_configure_endpoint+0x99/0x710
 xhci_endpoint_reset+0x359/0x630
 ? hub_port_init+0x37d/0xf60
 usb_enable_endpoint+0x7d/0x80
 hub_event+0x148e/0x1cd0
 ? __pfx_read_tsc+0x10/0x10
 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: uinput 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 qrtr sunrpc rtl8188ee rtl_pci rtlwifi binfmt_misc snd_hda_codec_hdmi mac80211 vfat fat snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel libarc4 snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec cfg80211 snd_hda_core iTCO_wdt intel_pmc_bxt snd_hwdep iTCO_vendor_support snd_seq snd_seq_device mei_hdcp snd_pcm snd_timer mei_pxp at24 lpc_ich mei_me intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp asus_wmi rapl uvcvideo uvc videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev intel_cstate mc intel_uncore ledtrig_audio sparse_keymap platform_profile rfkill i2c_i801 pcspkr pktcdvd i2c_smbus snd mei jmb38x_ms soundcore memstick joydev loop nfnetlink zram i915
 i2c_algo_bit sdhci_pci drm_buddy crct10dif_pclmul crc32_pclmul ttm cqhci crc32c_intel sdhci polyval_generic drm_display_helper ghash_clmulni_intel sha512_ssse3 jme sha256_ssse3 mmc_core sha1_ssse3 mii cec video wmi serio_raw ip6_tables ip_tables fuse
CR2: 0000000000000020