Comment 9 for bug 1921137

Another data point here:

kernel: [5150033.094216] kernel BUG at lib/string.c:1149!
kernel: [5150033.094224] invalid opcode: 0000 [#1] SMP NOPTI
kernel: [5150033.094229] CPU: 1 PID: 2940890 Comm: mount.ocfs2 Tainted: P OE 5.13.12-051312-generic #202108181219-Ubuntu
kernel: [5150033.094233] Hardware name: Gigabyte Technology Co., Ltd. X399 DESIGNARE EX/X399 DESIGNARE EX-CF, BIOS F12i 09/24/2019
kernel: [5150033.094236] RIP: 0010:fortify_panic+0x13/0x15
kernel: [5150033.094244] Code: 35 37 a8 3b 01 48 c7 c7 93 63 01 b6 e8 c9 c9 fe ff 41 5c 41 5d 5d c3 55 48 89 fe 48 c7 c7 e0 63 01 b6 48 89 e5 e8 b0 c9 fe ff <0f> 0b 48 c7 c7 18 dc c8 b5 e8 df ff ff ff 48 c7 c7 10 dc c8 b5 e8
kernel: [5150033.094248] RSP: 0018:ffffb4f1ee523c50 EFLAGS: 00010246
kernel: [5150033.094252] RAX: 0000000000000022 RBX: ffff9cf5639bb000 RCX: 0000000000000000
kernel: [5150033.094254] RDX: 0000000000000000 RSI: ffff9d033e2589c0 RDI: ffff9d033e2589c0
kernel: [5150033.094257] RBP: ffffb4f1ee523c50 R08: ffff9d033e2589c0 R09: ffffb4f1ee523a30
kernel: [5150033.094258] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000004
kernel: [5150033.094260] R13: ffff9cf496853000 R14: ffff9d00f6a91000 R15: ffff9cf5639bb291
kernel: [5150033.094262] FS: 00007fb7fd6d3b80(0000) GS:ffff9d033e240000(0000) knlGS:0000000000000000
kernel: [5150033.094265] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kernel: [5150033.094267] CR2: 000055f52c08f040 CR3: 000000029a09e000 CR4: 00000000003506e0
kernel: [5150033.094270] Call Trace:
kernel: [5150033.094276] ocfs2_initialize_super.isra.0.cold+0xc/0x18 [ocfs2]
kernel: [5150033.094347] ? ocfs2_verify_volume+0x143/0x310 [ocfs2]
kernel: [5150033.094410] ocfs2_fill_super+0x262/0xda0 [ocfs2]
kernel: [5150033.094473] mount_bdev+0x18d/0x1c0
kernel: [5150033.094478] ? ocfs2_initialize_super.isra.0+0x1070/0x1070 [ocfs2]
kernel: [5150033.094539] ocfs2_mount+0x15/0x20 [ocfs2]
kernel: [5150033.094599] legacy_get_tree+0x2b/0x50
kernel: [5150033.094604] vfs_get_tree+0x2a/0xc0
kernel: [5150033.094607] ? capable+0x19/0x20
kernel: [5150033.094612] path_mount+0x468/0xa60
kernel: [5150033.094617] do_mount+0x7c/0xa0
kernel: [5150033.094620] __x64_sys_mount+0x8b/0xe0
kernel: [5150033.094623] do_syscall_64+0x61/0xb0
kernel: [5150033.094627] ? syscall_exit_to_user_mode+0x27/0x50
kernel: [5150033.094632] ? __x64_sys_readlink+0x1f/0x30
kernel: [5150033.094635] ? do_syscall_64+0x6e/0xb0
kernel: [5150033.094638] ? irqentry_exit+0x19/0x30
kernel: [5150033.094641] ? exc_page_fault+0x8f/0x170
kernel: [5150033.094645] ? asm_exc_page_fault+0x8/0x30
kernel: [5150033.094649] entry_SYSCALL_64_after_hwframe+0x44/0xae
kernel: [5150033.094651] RIP: 0033:0x7fb7fd88cdde
kernel: [5150033.094679] Code: 48 8b 0d b5 80 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 82 80 0c 00 f7 d8 64 89 01 48
kernel: [5150033.094682] RSP: 002b:00007ffea9610c18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
kernel: [5150033.094686] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb7fd88cdde
kernel: [5150033.094688] RDX: 000055cd6acb10ae RSI: 000055cd6c9a7340 RDI: 000055cd6c9ac140
kernel: [5150033.094689] RBP: 00007ffea9610dc0 R08: 000055cd6c9ac0e0 R09: 00007ffea960e650
kernel: [5150033.094691] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffea9610cb0
kernel: [5150033.094693] R13: 00007ffea9610c30 R14: 000055cd6c9ac0e0 R15: 0000000000000000
kernel: [5150033.094696] Modules linked in: ocfs2_stack_o2cb ocfs2_dlm ocfs2 ocfs2_nodemanager ocfs2_stackglue quota_tree nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_counter nft_limit nft_meta_bridge bridge stp llc snd_seq_dummy vhost_net vhost vhost_iotlb tap rfcomm nf_tables ip6table_filter ip6_tables iptable_filter bpfilter wireguard curve25519_x86_64 libchacha20poly1305 chacha_x86_64 poly1305_x86_64 libblake2s blake2s_x86_64 libcurve25519_generic libchacha libblake2s_generic ip6_udp_tunnel udp_tunnel nfnetlink_cttimeout nfnetlink cmac algif_hash openvswitch nsh algif_skcipher nf_conncount af_alg nf_nat bnep nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 binfmt_misc nls_iso8859_1 intel_rapl_msr intel_rapl_common amd64_edac edac_mce_amd kvm_amd kvm crct10dif_pclmul ghash_clmulni_intel aesni_intel snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio crypto_simd snd_hda_codec_hdmi cryptd rapl iwlmvm snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi mac80211 uvcvideo
kernel: [5150033.094758] snd_hda_codec videobuf2_vmalloc videobuf2_memops snd_hda_core snd_seq_midi videobuf2_v4l2 btusb snd_seq_midi_event libarc4 btrtl videobuf2_common snd_hwdep snd_rawmidi btbcm btintel videodev snd_seq joydev gigabyte_wmi mc input_leds serio_raw snd_pcm snd_seq_device wmi_bmof bluetooth iwlwifi snd_timer ecdh_generic efi_pstore snd ecc ccp mxm_wmi cfg80211 k10temp soundcore lz4 lz4_compress mac_hid nvidia_uvm(POE) tcp_htcp sch_cake ib_umad ib_ipoib ib_cm zram vendor_reset(OE) msr parport_pc ppdev lp parport ip_tables x_tables autofs4 zfs(POE) zunicode(POE) zzstd(OE) zlua(OE) zavl(POE) icp(POE) zcommon(POE) znvpair(POE) spl(OE) btrfs blake2b_generic zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear hid_logitech_hidpp mlx4_ib ib_uverbs ib_core uas usb_storage hid_logitech_dj hid_generic usbhid hid nvidia_drm(POE) nvidia_modeset(POE) nvidia(POE) drm_kms_helper syscopyarea sysfillrect
kernel: [5150033.094838] sysimgblt fb_sys_fops cec rc_core igb crc32_pclmul dca psmouse mlx4_core drm megaraid_sas nvme i2c_algo_bit xhci_pci i2c_piix4 ahci nvme_core libahci xhci_pci_renesas gpio_amdpt wmi gpio_generic [last unloaded: ocfs2_nodemanager]

ocfs2 tools:
ii ocfs2-tools 1.8.6-2ubuntu1 amd64