Backtrace

general protection fault, probably for non-canonical address 0xff03ca5fff0677ed: 0000 [#1] SMP PTI
CPU: 0 PID: 1647 Comm: ibus-extension- Tainted: G        W         5.11.12-300.fc34.x86_64 #1
Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
RIP: 0010:__pv_queued_spin_lock_slowpath+0x19e/0x2b0
Code: eb a2 83 e0 03 c1 ea 12 4c 8d 6b 14 41 be 01 00 00 00 48 c1 e0 05 4c 8d a0 40 ad 02 00 8d 42 ff 48 98 4c 03 24 c5 00 99 49 89 <49> 89 1c 24 b8 00 80 00 00 eb 15 84 c0 75 0a 41 0f b6 54 24 14 84
RSP: 0018:ffffad1d43d33c88 EFLAGS: 00010086
RAX: 0000000000003ffe RBX: ffff91e09bc2ad40 RCX: 0000000000000001
RDX: 0000000000003fff RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff91df810c401c R08: 0000000000040000 R09: 0000000000000000
R10: ffff91dfa8f73698 R11: 0000000000000001 R12: ff03ca5fff0677ed
R13: ffff91e09bc2ad54 R14: 0000000000000001 R15: 0000000000040000
FS:  0000000000000000(0000) GS:ffff91e09bc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559749d263c0 CR3: 0000000028f0e003 CR4: 00000000000706f0
Call Trace:
 _raw_spin_lock_irq+0x21/0x24
 rwsem_down_write_slowpath+0x9c/0x5b0
 ? kmem_cache_free+0x3f7/0x430
 unlink_anon_vmas+0xb1/0x1d0
 free_pgtables+0x93/0x100
 exit_mmap+0xa6/0x1c0
 mmput+0x61/0x140
 do_exit+0x30c/0xac0
 do_group_exit+0x33/0xa0
 __x64_sys_exit_group+0x14/0x20
 do_syscall_64+0x33/0x40
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fac81457331
Code: Unable to access opcode bytes at RIP 0x7fac81457307.
RSP: 002b:00007ffd4a8e6fe8 EFLAGS: 00000206 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fac8151c1c8 RCX: 00007fac81457331
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 000000000000000b R08: ffffffffffffff88 R09: 00007fac815114e0
R10: 00007fac815113e0 R11: 0000000000000206 R12: 0000560717608160
R13: 00007fac81a290c0 R14: 00007ffd4a8e70d0 R15: 000001313bbfa945
Modules linked in: nls_utf8 isofs snd_seq_dummy snd_hrtimer 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 rfkill nfnetlink ip6table_filter ip6_tables iptable_filter sunrpc squashfs intel_rapl_msr loop intel_rapl_common rapl snd_intel8x0 joydev snd_ac97_codec ac97_bus snd_seq snd_seq_device snd_pcm snd_timer snd soundcore vboxguest i2c_piix4 pcspkr binfmt_misc zram ip_tables vmwgfx drm_kms_helper cec ttm crct10dif_pclmul crc32_pclmul drm crc32c_intel e1000 ghash_clmulni_intel serio_raw ata_generic pata_acpi video fuse