Backtrace

list_add corruption. next->prev should be prev (ffff9d071d3a7548), but was 0000000000000000. (next=ffff9d06d83348b8).
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kernel BUG at lib/list_debug.c:23!
invalid opcode: 0000 [#1] SMP PTI
CPU: 1 PID: 1409 Comm: gst-plugin-scan Not tainted 5.8.15-301.fc33.x86_64 #1
Hardware name: Apple Inc. MacBookPro6,1/Mac-F22589C8, BIOS 99.0.0.0.0 06/13/2019
RIP: 0010:__list_add_valid.cold+0xf/0x3f
Code: 39 fe 0f 85 71 00 00 00 48 8b 52 08 48 39 f2 0f 85 56 00 00 00 b8 01 00 00 00 c3 4c 89 c1 48 c7 c7 78 07 40 a1 e8 c3 97 b4 ff <0f> 0b 48 89 f2 4c 89 c1 48 89 fe 48 c7 c7 28 08 40 a1 e8 ac 97 b4
RSP: 0018:ffffb8c684567bc8 EFLAGS: 00010282
RAX: 0000000000000075 RBX: ffff9d06d8331960 RCX: 0000000000000000
RDX: ffff9d0727c670a0 RSI: ffff9d0727c58d10 RDI: ffff9d0727c58d10
RBP: ffff9d071d3a7000 R08: 000000000000059c R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000001 R12: ffff9d06d8331a78
R13: ffff9d06d83348b8 R14: ffff9d071d3a7548 R15: ffffffffa04858b0
FS:  00007f424e70c740(0000) GS:ffff9d0727c40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f424dcdb9f8 CR3: 00000002192e8006 CR4: 00000000000206e0
Call Trace:
 inode_sb_list_add+0x47/0x80
 ? btrfs_defrag_root.cold+0x1d/0x1d
 inode_insert5+0x125/0x1b0
 ? btrfs_defrag_root.cold+0x1d/0x1d
 ? btrfs_opendir+0x70/0x70
 iget5_locked+0x6b/0x80
 btrfs_iget_path+0x46/0xc0
 btrfs_lookup_dentry+0x3e8/0x520
 btrfs_lookup+0xe/0x30
 path_openat+0x5be/0xfe0
 ? page_remove_rmap+0x17d/0x4b0
 do_filp_open+0x75/0x100
 ? lookup_fast+0x130/0x130
 ? __alloc_fd+0x44/0x150
 do_sys_openat2+0x8a/0x130
 __x64_sys_openat+0x46/0x70
 do_syscall_64+0x4d/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f424ef23868
Code: f9 41 89 f0 41 83 e2 40 75 30 89 f0 25 00 00 41 00 3d 00 00 41 00 74 22 44 89 c2 4c 89 ce bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 30 c3 0f 1f 80 00 00 00 00 48 8d 44 24 08 c7
RSP: 002b:00007ffeccc6d9b8 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000080000000 RCX: 00007f424ef23868
RDX: 0000000000080000 RSI: 0000555f6d260870 RDI: 00000000ffffff9c
RBP: 00007ffeccc6da20 R08: 0000000000080000 R09: 0000555f6d260870
R10: 0000000000000000 R11: 0000000000000287 R12: 00007ffeccc6da7f
R13: 0000555f6d260870 R14: 00007f424ef32000 R15: 00007ffeccc6da90
Modules linked in: 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 bnep joydev brcmsmac brcmutil b43 uvcvideo cordic mac80211 videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common at24 videodev cfg80211 btusb btrtl btbcm btintel bluetooth sunrpc ssb mc ecdh_generic bcm5974 ecc mmc_core iTCO_wdt intel_pmc_bxt iTCO_vendor_support rfkill libarc4 nls_utf8 intel_powerclamp hfsplus coretemp kvm_intel kvm applesmc irqbypass intel_cstate intel_uncore i2c_i801 pcspkr i2c_smbus intel_ips snd_hda_codec_cirrus snd_hda_codec_generic snd_hda_codec_hdmi ledtrig_audio apple_mfi_fastcharge snd_hda_intel
 snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep snd_seq snd_seq_device snd_pcm lpc_ich bcma snd_timer snd soundcore acpi_als sbs sbshc kfifo_buf apple_gmux industrialio apple_bl acpi_cpufreq zram ip_tables i915 nouveau mxm_wmi wmi ttm i2c_algo_bit crct10dif_pclmul drm_kms_helper crc32_pclmul crc32c_intel ghash_clmulni_intel cec firewire_ohci firewire_core drm crc_itu_t tg3 video hid_appleir hid_apple fuse