Backtrace

kernel BUG at mm/slub.c:305!
invalid opcode: 0000 [#1] SMP NOPTI
CPU: 1 PID: 3815 Comm: qemu Tainted: G        W         5.11.10-200.fc33.x86_64 #1
Hardware name: Gigabyte Technology Co., Ltd. Z390 AORUS PRO/Z390 AORUS PRO-CF, BIOS F7 12/04/2018
RIP: 0010:__slab_free+0x256/0x450
Code: 4c 24 20 e8 6c a8 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:ffffaa23c3587c40 EFLAGS: 00010246
RAX: ffff9e61431f3000 RBX: 0000000080040003 RCX: ffff9e61431f2000
RDX: ffff9e61431f2000 RSI: ffffe9cc040c7c00 RDI: ffff9e6140043200
RBP: ffffaa23c3587cf0 R08: 0000000000000001 R09: ffffffff896d2475
R10: ffff9e61431f2000 R11: 0000000000000000 R12: ffffe9cc040c7c00
R13: ffff9e61431f2000 R14: ffff9e6140043200 R15: ffffe9cc040c7c20
FS:  00007fc85d6a3740(0000) GS:ffff9e64ee440000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055d8752de9c8 CR3: 0000000213902005 CR4: 00000000003706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ? report_bug+0x9a/0xc0
 ? handle_bug+0x3a/0xa0
 ? exc_invalid_op+0x14/0x70
 ? asm_exc_invalid_op+0x12/0x20
 kfree+0x3cd/0x400
 ? do_unregister_framebuffer+0xd5/0x110
 do_unregister_framebuffer+0xd5/0x110
 unregister_framebuffer+0x1d/0x30
 efifb_remove+0x19/0x40
 platform_remove+0x24/0x40
 __device_release_driver+0x17a/0x230
 device_driver_detach+0x3c/0xa0
 unbind_store+0x113/0x130
 kernfs_fop_write_iter+0x124/0x1b0
 new_sync_write+0x108/0x180
 vfs_write+0x1bc/0x270
 ksys_write+0x4f/0xc0
 do_syscall_64+0x33/0x40
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fc85d7984e7
Code: 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
RSP: 002b:00007ffe9c1d2a68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007fc85d7984e7
RDX: 0000000000000012 RSI: 000055d8752e3f60 RDI: 0000000000000001
RBP: 000055d8752e3f60 R08: 000000000000000a R09: 00007fc85d82f0c0
R10: 00007fc85d82efc0 R11: 0000000000000246 R12: 0000000000000012
R13: 00007fc85d86b520 R14: 0000000000000012 R15: 00007fc85d86b720
Modules linked in: uinput xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp tun 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 rfkill ip_set nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter snd_hda_codec_realtek snd_hda_codec_generic snd_sof_pci snd_sof_intel_hda_common snd_sof_intel_hda snd_sof_intel_byt snd_sof_intel_ipc snd_sof snd_sof_xtensa_dsp ledtrig_audio snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc snd_soc_sst_dsp sunrpc snd_hda_codec_hdmi snd_soc_acpi_intel_match snd_soc_acpi intel_rapl_msr intel_rapl_common snd_hda_intel snd_intel_dspcfg x86_pkg_temp_thermal soundwire_intel intel_powerclamp
 coretemp soundwire_generic_allocation snd_soc_core kvm_intel iTCO_wdt snd_compress intel_pmc_bxt snd_pcm_dmaengine squashfs vfat ee1004 iTCO_vendor_support mei_hdcp soundwire_cadence fat kvm loop snd_hda_codec irqbypass rapl intel_cstate snd_hda_core ac97_bus intel_uncore snd_hwdep snd_seq snd_seq_device i2c_i801 intel_wmi_thunderbolt wmi_bmof i2c_smbus pcspkr i915 snd_pcm mei_me joydev mei snd_timer snd soundcore intel_pch_thermal acpi_pad zram ip_tables nouveau i2c_algo_bit drm_ttm_helper ttm drm_kms_helper crct10dif_pclmul cec crc32_pclmul mxm_wmi crc32c_intel ghash_clmulni_intel drm e1000e nvme nvme_core wmi video pinctrl_cannonlake fuse