Backtrace

kernel BUG at mm/slub.c:305!
invalid opcode: 0000 [#2] SMP PTI
CPU: 2 PID: 24235 Comm: kworker/u8:1 Tainted: G      D W I       5.11.12-300.fc34.x86_64 #1
Hardware name: Gigabyte Technology Co., Ltd. Z170X-UD3/Z170X-UD3-CF, BIOS F6 03/01/2016
Workqueue: netns cleanup_net
RIP: 0010:__slab_free+0x256/0x450
Code: 4c 24 20 e8 8c 64 8e 00 8b 74 24 0c 44 0f b6 5c 24 13 44 8b 44 24 14 4c 8b 54 24 18 48 89 04 24 4c 8b 4c 24 20 e9 53 fe ff ff <0f> 0b 41 f7 46 08 00 0d 21 00 75 a2 eb 9b 0f 0b 80 4c 24 6b 80 45
RSP: 0018:ffffb1c5452dbd10 EFLAGS: 00010246
RAX: ffff91144295d000 RBX: 0000000000040003 RCX: ffff91144295c000
RDX: ffff91144295c000 RSI: fffff781440a5600 RDI: ffff911440042200
RBP: ffffb1c5452dbdb8 R08: 0000000000000001 R09: ffffffffb999bf33
R10: ffff91144295c000 R11: 0000000000000000 R12: fffff781440a5600
R13: ffff91144295c000 R14: ffff911440042200 R15: fffff781440a5620
FS:  0000000000000000(0000) GS:ffff9115a9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdb83c60944 CR3: 000000015a0ee002 CR4: 00000000003706e0
Call Trace:
 ? xlate_dir+0x4e/0x90
 ? put_links+0x39/0xd0
 kfree+0x3cd/0x400
 ? ops_exit_list+0x33/0x60
 ops_exit_list+0x33/0x60
 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: uinput snd_seq_dummy rfcomm 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 cmac bnep sunrpc vfat fat intel_rapl_msr intel_rapl_common uvcvideo x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg soundwire_intel soundwire_generic_allocation btusb snd_soc_core snd_usb_audio snd_compress snd_pcm_dmaengine soundwire_cadence btrtl videobuf2_vmalloc snd_usbmidi_lib videobuf2_memops
 snd_hda_codec btbcm btintel kvm_intel snd_rawmidi snd_hda_core videobuf2_v4l2 ac97_bus nouveau snd_hwdep kvm bluetooth videobuf2_common iTCO_wdt snd_seq videodev snd_seq_device ee1004 intel_pmc_bxt rapl intel_cstate ecdh_generic snd_pcm rfkill intel_uncore ecc mei_hdcp iTCO_vendor_support mc intel_wmi_thunderbolt joydev pcspkr drm_ttm_helper i2c_i801 snd_timer snd soundcore i2c_smbus ttm intel_pch_thermal mei_me mei acpi_pad zram ip_tables uas usb_storage i915 i2c_algo_bit drm_kms_helper mxm_wmi crct10dif_pclmul crc32_pclmul crc32c_intel cec ghash_clmulni_intel e1000e nvme drm nvme_core wmi video vfio_pci irqbypass vfio_virqfd vfio_iommu_type1 vfio fuse