Backtrace

kernel BUG at mm/slub.c:304!
invalid opcode: 0000 [#1] SMP PTI
CPU: 0 PID: 12563 Comm: Chrome_IOThread Not tainted 5.8.15-301.fc33.x86_64 #1
Hardware name: Dell Inc. Inspiron 3420/0VRTT1, BIOS A04 09/20/2012
RIP: 0010:kfree+0x1ef/0x200
Code: 5b 5d 41 5c 41 5d e9 50 1f fd ff 4d 89 e1 41 b8 01 00 00 00 4c 89 d1 48 89 da 48 89 ee 4c 89 ef e8 26 fa ff ff e9 2a ff ff ff <0f> 0b 0f 0b 48 8b 05 86 8e 72 01 e9 43 fe ff ff 90 66 66 66 66 90
RSP: 0018:ffffa821c0d27b98 EFLAGS: 00010246
RAX: ffff8d577632ac00 RBX: ffff8d577632ac00 RCX: ffff8d577632ae00
RDX: 0000000000009a62 RSI: ffffa821c0d27b98 RDI: ffff8d58ab8d41c0
RBP: fffff36902d8ca00 R08: ffff8d57df8263f0 R09: ffffa821c0d27b00
R10: ffff8d577632ac00 R11: 0000000000000000 R12: ffffffffaf9a291d
R13: ffff8d58ab8d41c0 R14: 0000000000000228 R15: ffff8d576f618200
FS:  00007f95ab0bb640(0000) GS:ffff8d58d7200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000008ea3bfaa000 CR3: 00000001a9a18001 CR4: 00000000000606f0
Call Trace:
 consume_skb+0x3d/0xb0
 unix_stream_read_generic+0x753/0x820
 unix_stream_recvmsg+0x43/0x50
 ? unix_copy_addr+0x30/0x30
 ____sys_recvmsg+0x83/0x180
 ? record_times+0x15/0x90
 ? psi_group_change+0x41/0x1e0
 ? __check_object_size+0x46/0x147
 ? _copy_from_user+0x2e/0x60
 ? rw_copy_check_uvector+0x5c/0x120
 ___sys_recvmsg+0x6f/0xe0
 ? ep_read_events_proc+0xc0/0xc0
 ? ep_scan_ready_list.constprop.0+0x174/0x180
 ? do_epoll_wait+0xaa/0x610
 __sys_recvmsg+0x46/0x80
 do_syscall_64+0x4d/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f95bfbdfe2d
Code: 28 89 54 24 1c 48 89 74 24 10 89 7c 24 08 e8 ea ee ff ff 8b 54 24 1c 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 2f 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 33 44 89 c7 48 89 44 24 08 e8 3e ef ff ff 48
RSP: 002b:00007f95ab0ba0d0 EFLAGS: 00000293 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 0000000000000040 RCX: 00007f95bfbdfe2d
RDX: 0000000000000040 RSI: 00007f95ab0ba130 RDI: 0000000000000039
RBP: 00007f95ab0ba3c0 R08: 0000000000000000 R09: 0000000000000354
R10: 00007ffdba7f8080 R11: 0000000000000293 R12: 00007f95ab0ba180
R13: 00007f95ab0ba130 R14: 00007f95ab0ba440 R15: 0000000000000039
Modules linked in: binfmt_misc uinput vfat fat 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 sunrpc intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp at24 iTCO_wdt intel_pmc_bxt mei_hdcp rtl8192ce iTCO_vendor_support kvm_intel dell_laptop dell_smm_hwmon rtl_pci rtl8192c_common kvm rtlwifi snd_hda_codec_hdmi snd_hda_codec_cirrus irqbypass snd_hda_codec_generic rapl uvcvideo intel_cstate ledtrig_audio mac80211 videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 intel_uncore videobuf2_common snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep dell_wmi snd_seq cfg80211
 dell_smbios videodev dcdbas pcspkr joydev snd_seq_device sparse_keymap dell_wmi_descriptor snd_pcm wmi_bmof mc i2c_i801 i2c_smbus snd_timer mei_me snd rfkill mei lpc_ich soundcore libarc4 zram ip_tables i915 crct10dif_pclmul crc32_pclmul crc32c_intel i2c_algo_bit drm_kms_helper ghash_clmulni_intel cec drm ums_realtek uas serio_raw usb_storage r8169 wmi video fuse