Backtrace

list_del corruption. next->prev should be ffff985a7c78f650, but was ffff885a7c78f650
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kernel BUG at lib/list_debug.c:54!
invalid opcode: 0000 [#1] SMP PTI
CPU: 0 PID: 1481 Comm: gdbus Not tainted 5.11.22-100.fc32.x86_64 #1
Hardware name: Default string Default string/SKYBAY, BIOS 5.12 05/14/2020
RIP: 0010:__list_del_entry_valid.cold+0x1d/0x47
Code: c7 c7 38 cc 40 bc e8 ba 3c fe ff 0f 0b 48 89 fe 48 c7 c7 c8 cc 40 bc e8 a9 3c fe ff 0f 0b 48 c7 c7 78 cd 40 bc e8 9b 3c fe ff <0f> 0b 48 89 f2 48 89 fe 48 c7 c7 38 cd 40 bc e8 87 3c fe ff 0f 0b
RSP: 0018:ffffb80ac2077c38 EFLAGS: 00010282
RAX: 0000000000000054 RBX: ffff985a7c791838 RCX: 0000000000000000
RDX: ffff985b76c26ba0 RSI: ffff985b76c18ac0 RDI: ffff985b76c18ac0
RBP: ffff985a7c78f640 R08: 0000000000000000 R09: ffffb80ac2077a70
R10: ffffb80ac2077a68 R11: ffffffffbcb44f48 R12: dead000000000122
R13: ffff985a7c791848 R14: dead000000000100 R15: ffff985a7c78f650
FS:  0000000000000000(0000) GS:ffff985b76c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a1a5dd41f3 CR3: 0000000104a10002 CR4: 00000000003706f0
Call Trace:
 unlink_anon_vmas+0x12c/0x1d0
 free_pgtables+0x8f/0x100
 exit_mmap+0xa6/0x1c0
 mmput+0x61/0x140
 do_exit+0x30d/0xac0
 ? _copy_to_iter+0x8e/0x370
 do_group_exit+0x33/0xa0
 get_signal+0x154/0x8a0
 ? wake_up_q+0xa0/0xa0
 arch_do_signal_or_restart+0xf2/0x700
 ? vfs_read+0x176/0x1a0
 exit_to_user_mode_prepare+0xfb/0x190
 syscall_exit_to_user_mode+0x18/0x40
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fa74724986f
Code: Unable to access opcode bytes at RIP 0x7fa747249845.
RSP: 002b:00007fa745d32d20 EFLAGS: 00000293 ORIG_RAX: 0000000000000007
RAX: fffffffffffffdfc RBX: 00007fa747644290 RCX: 00007fa74724986f
RDX: 00000000ffffffff RSI: 0000000000000003 RDI: 00007fa7400112b0
RBP: 00007fa7400112b0 R08: 0000000000000000 R09: 000000000000001a
R10: 0000000000000030 R11: 0000000000000293 R12: 0000000000000003
R13: 00007fa745d32d64 R14: 00000000ffffffff R15: 00007fa74000e490
Modules linked in: uinput xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp tun 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 sunrpc vfat fat snd_hda_codec_hdmi snd_soc_skl snd_hda_codec_realtek snd_hda_codec_generic snd_soc_hdac_hda snd_hda_ext_core ledtrig_audio snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_acpi_intel_match iwlmvm snd_soc_acpi snd_hda_intel snd_intel_dspcfg soundwire_intel soundwire_generic_allocation snd_soc_core mac80211 intel_rapl_msr intel_rapl_common snd_compress snd_pcm_dmaengine x86_pkg_temp_thermal intel_powerclamp soundwire_cadence coretemp
 snd_hda_codec libarc4 kvm_intel snd_hda_core at24 mei_hdcp ac97_bus iwlwifi snd_hwdep snd_seq iTCO_wdt intel_pmc_bxt snd_seq_device ppdev iTCO_vendor_support snd_pcm kvm uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 irqbypass videobuf2_common videodev rapl intel_cstate intel_uncore cfg80211 snd_timer intel_wmi_thunderbolt pcspkr cdc_acm joydev mc rfkill i2c_i801 snd i2c_smbus mei_me intel_xhci_usb_role_switch soundcore roles mei intel_pch_thermal parport_pc parport acpi_pad ip_tables hid_multitouch i915 i2c_algo_bit drm_kms_helper cec crct10dif_pclmul crc32_pclmul crc32c_intel drm ghash_clmulni_intel serio_raw r8169 wmi video fuse