Backtrace

general protection fault, probably for non-canonical address 0xff54fb9935dd65cd: 0000 [#1] SMP PTI
CPU: 2 PID: 206039 Comm: kworker/u8:4 Tainted: G        W         5.12.8-300.fc34.x86_64 #1
Hardware name: Dell Inc. XPS 15 9560/0JHP5H, BIOS 1.19.2 05/22/2020
Workqueue: netns cleanup_net
RIP: 0010:rb_erase+0x2da/0x350
Code: ff ff ff 49 89 00 48 89 f0 e9 51 fe ff ff 48 8b 71 08 48 89 70 10 48 89 41 08 48 89 4a 08 48 85 f6 74 60 48 89 c7 48 83 cf 01 <48> 89 3e 48 89 c6 48 89 c8 48 8b 48 10 48 89 c7 48 83 cf 01 48 89
RSP: 0018:ffffb60f866efca8 EFLAGS: 00010282
RAX: ffff96aedfc6cb18 RBX: ffff96aedf0e2c80 RCX: ffff96ae6151e498
RDX: ffff96ae4b9f1d18 RSI: ff54fb9935dd65cd RDI: ffff96aedfc6cb19
RBP: ffffb60f866efcf0 R08: ffff96ae41065bc8 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff96aedf0e2c80
R13: ffff96aedf0e2c98 R14: ffff96aead7fc5c8 R15: ffff96ae56257f00
FS:  0000000000000000(0000) GS:ffff96afb7700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5bd3762958 CR3: 00000001114f8002 CR4: 00000000003706e0
Call Trace:
 __kernfs_remove.part.0+0x124/0x280
 ? kernfs_remove_by_name_ns+0x5c/0x90
 kernfs_remove+0x33/0x40
 __kobject_del+0x2e/0x80
 kobject_del+0xf/0x20
 device_del+0x2bd/0x3e0
 unregister_netdevice_many+0x4ae/0x700
 default_device_exit_batch+0x131/0x150
 ? init_wait_entry+0x30/0x30
 cleanup_net+0x1ff/0x350
 process_one_work+0x1ec/0x380
 worker_thread+0x53/0x3e0
 ? process_one_work+0x380/0x380
 kthread+0x11b/0x140
 ? kthread_associate_blkcg+0xa0/0xa0
 ret_from_fork+0x22/0x30
Modules linked in: xt_nat veth nf_conntrack_netlink xt_addrtype br_netfilter overlay rfcomm snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc ccm 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 cmac bnep sunrpc snd_hda_codec_hdmi x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_codec_realtek snd_hda_codec_generic kvm_intel ath10k_pci uvcvideo ath10k_core snd_hda_intel kvm snd_intel_dspcfg mac80211 videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common snd_intel_sdw_acpi btusb btrtl videodev btbcm btintel snd_hda_codec mc
 snd_hda_core vfat fat bluetooth ath irqbypass snd_hwdep dell_laptop cfg80211 ledtrig_audio snd_seq ecdh_generic ecc rapl dell_smm_hwmon intel_cstate rfkill snd_seq_device dell_wmi intel_rapl_msr iTCO_wdt libarc4 intel_pmc_bxt iTCO_vendor_support mei_wdt dell_smbios dcdbas snd_pcm ee1004 intel_uncore mei_hdcp i2c_i801 pcspkr dell_wmi_descriptor idma64 wmi_bmof i2c_smbus snd_timer snd soundcore mei_me mei processor_thermal_device processor_thermal_rfim joydev intel_wmi_thunderbolt processor_thermal_mbox processor_thermal_rapl intel_hid intel_rapl_common dell_smo8800 intel_soc_dts_iosf intel_pch_thermal acpi_pad int3403_thermal sparse_keymap int340x_thermal_zone int3400_thermal acpi_thermal_rel zram ip_tables dm_crypt trusted i915 nouveau hid_multitouch crct10dif_pclmul crc32_pclmul rtsx_pci_sdmmc crc32c_intel drm_ttm_helper ttm mmc_core i2c_algo_bit drm_kms_helper mxm_wmi cec ghash_clmulni_intel drm serio_raw rtsx_pci i2c_hid_acpi i2c_hid wmi video fuse