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] PREEMPT SMP NOPTI
CPU: 7 PID: 56497 Comm: kworker/u32:28 Tainted: P           OE     5.17.12-300.fc36.x86_64 #1
Hardware name: Micro-Star International Co., Ltd. GE76 Raider 11UH/MS-17K3, BIOS E17K3IMS.119 08/05/2021
Workqueue: netns cleanup_net
RIP: 0010:rb_erase+0x110/0x350
Code: 48 8b 01 a8 01 0f 84 3c 02 00 00 48 83 f8 03 77 02 c3 cc 48 83 e0 fc 48 89 ca 48 89 c1 48 8b 41 08 48 39 d0 75 aa 48 8b 41 10 <f6> 00 01 0f 84 22 01 00 00 48 8b 70 10 48 85 f6 74 05 f6 06 01 74
RSP: 0018:ffff9d82c608bbd8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff90f449a4d300 RCX: ffff90f302760df0
RDX: 0000000000000000 RSI: ffff90f302760e11 RDI: ffff90f302760db0
RBP: ffff9d82c608bc01 R08: ffff90f449a4d350 R09: 0000000000000000
R10: ffff90f302760e10 R11: 0000000000000007 R12: ffff90f302760c00
R13: ffff90f2f3336308 R14: ffff90f4d0329000 R15: ffff90f2f3337000
FS:  0000000000000000(0000) GS:ffff90f9eb9c0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000127e10003 CR4: 0000000000770ee0
PKRU: 55555554
Call Trace:
 <TASK>
 drop_sysctl_table+0xb0/0x150
 unregister_sysctl_table.part.0+0x3b/0x90
 neigh_sysctl_unregister+0x1f/0x30
 addrconf_ifdown.isra.0+0x5e8/0x720
 ? lock_timer_base+0x61/0x80
 ? _raw_spin_lock+0x13/0x40
 ? krc_this_cpu_lock+0x37/0x40
 addrconf_notify+0xc2/0x8d0
 raw_notifier_call_chain+0x41/0x60
 unregister_netdevice_many+0x3ab/0x750
 default_device_exit_batch+0x131/0x150
 ? init_wait_entry+0x30/0x30
 cleanup_net+0x20d/0x390
 process_one_work+0x1c4/0x380
 worker_thread+0x4d/0x380
 ? process_one_work+0x380/0x380
 kthread+0xe6/0x110
 ? kthread_complete_and_exit+0x20/0x20
 ret_from_fork+0x1f/0x30
 </TASK>
Modules linked in: binfmt_misc tls uinput xt_policy nft_compat echainiv esp4 rfcomm snd_seq_dummy snd_hrtimer nvidia_drm(POE) nvidia_modeset(POE) nvidia_uvm(POE) 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_nat nvidia(POE) nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables nfnetlink qrtr snd_soc_skl_hda_dsp snd_soc_intel_hda_dsp_common snd_soc_hdac_hdmi bnep sunrpc snd_hda_codec_realtek snd_hda_codec_generic snd_soc_dmic snd_sof_pci_intel_tgl snd_sof_intel_hda_common iwlmvm soundwire_intel soundwire_generic_allocation soundwire_cadence snd_sof_intel_hda snd_sof_pci iTCO_wdt mei_pxp mei_hdcp vfat snd_sof_xtensa_dsp intel_pmc_bxt pmt_telemetry fat ee1004 iTCO_vendor_support intel_rapl_msr pmt_class mac80211 snd_sof btusb snd_soc_hdac_hda btrtl snd_hda_ext_core btbcm snd_soc_acpi_intel_match intel_tcc_cooling x86_pkg_temp_thermal
 libarc4 snd_soc_acpi intel_powerclamp btintel soundwire_bus coretemp btmtk ledtrig_audio bluetooth kvm_intel iwlwifi snd_soc_core snd_compress kvm snd_hda_codec_hdmi iwlmei ac97_bus snd_pcm_dmaengine irqbypass intel_cstate ecdh_generic snd_hda_intel processor_thermal_device_pci_legacy snd_intel_dspcfg cfg80211 intel_uncore processor_thermal_device snd_intel_sdw_acpi snd_hda_codec pcspkr wmi_bmof processor_thermal_rfim i2c_i801 mei_me processor_thermal_mbox rfkill i2c_smbus msi_wmi processor_thermal_rapl sparse_keymap intel_rapl_common r8169 thunderbolt mei joydev idma64 int3403_thermal gpio_keys snd_hda_core intel_vsec intel_soc_dts_iosf int340x_thermal_zone int3400_thermal acpi_pad acpi_tad acpi_thermal_rel soc_button_array snd_usb_audio snd_usbmidi_lib snd_hwdep snd_rawmidi snd_seq snd_seq_device snd_pcm uvcvideo snd_timer videobuf2_vmalloc snd videobuf2_memops videobuf2_v4l2 videobuf2_common soundcore v4l2loopback(OE) videodev mc zram i915 rtsx_pci_sdmmc mmc_core nvme
 crct10dif_pclmul crc32_pclmul hid_multitouch crc32c_intel nvme_core rtsx_pci ghash_clmulni_intel serio_raw ttm i2c_hid_acpi i2c_hid wmi video pinctrl_tigerlake ip6_tables ip_tables ipmi_devintf ipmi_msghandler fuse
CR2: 0000000000000000