Backtrace

BUG: kernel NULL pointer dereference, address: 0000000000000808
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 0 PID: 56 Comm: kswapd0 Not tainted 6.0.15-300.fc37.x86_64 #1
Hardware name: IGEL Technology GmbH M340C/M340C, BIOS M340C V:3.4.13-02032016 02/03/2016
RIP: 0010:rb_next+0x22/0x50
Code: 00 00 e9 51 08 89 00 90 48 8b 0f 48 39 cf 74 38 48 8b 57 08 48 85 d2 74 1d 48 89 d0 48 8b 52 10 48 85 d2 75 f4 e9 2e 08 89 00 <48> 3b 78 08 75 13 48 8b 08 48 89 c7 48 89 c8 48 83 e0 fc 48 83 f9
RSP: 0018:ffff9bc100327aa0 EFLAGS: 00010212
RAX: 0000000000000800 RBX: ffff8dda6ee89af0 RCX: 0000000000000801
RDX: 0000000000000000 RSI: ffff8dda6ee89af0 RDI: ffff8dda6ee89b00
RBP: ffff8dda6ee89b00 R08: 0000000000000000 R09: ffff8dda6ee89af0
R10: ffff8ddac95f2000 R11: 0000000000001fff R12: ffff8dda6f40a168
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000001fff
FS:  0000000000000000(0000) GS:ffff8ddadb400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000808 CR3: 0000000030608000 CR4: 00000000000406f0
Call Trace:
 <TASK>
 clear_state_bit+0x103/0x190
 __clear_extent_bit+0x1d3/0x470
 clear_extent_bit+0x15/0x20
 btrfs_inode_clear_file_extent_range+0x49/0x50
 btrfs_destroy_inode+0x128/0x210
 destroy_inode+0x3b/0x70
 dispose_list+0x48/0x70
 prune_icache_sb+0x41/0x50
 super_cache_scan+0x163/0x1f0
 do_shrink_slab+0x141/0x2e0
 shrink_slab+0x1df/0x270
 shrink_node+0x2b9/0x6e0
 balance_pgdat+0x34f/0x730
 kswapd+0x1e2/0x390
 ? dequeue_task_stop+0x70/0x70
 ? balance_pgdat+0x730/0x730
 kthread+0xe9/0x110
 ? kthread_complete_and_exit+0x20/0x20
 ret_from_fork+0x22/0x30
 </TASK>
Modules linked in: tls uinput snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp 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 ip_set nf_tables nfnetlink ip6table_filter iptable_filter qrtr carl9170 mac80211 libarc4 edac_mce_amd ath sunrpc cfg80211 snd_hda_codec_realtek kvm snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi snd_hda_intel rfkill snd_intel_dspcfg snd_intel_sdw_acpi irqbypass snd_hda_codec k10temp pcspkr fam15h_power snd_hda_core snd_hwdep i2c_piix4 snd_seq snd_seq_device snd_pcm snd_timer snd soundcore acpi_cpufreq zram amdgpu iommu_v2 gpu_sched drm_buddy radeon drm_ttm_helper
 crct10dif_pclmul sdhci_pci crc32_pclmul crc32c_intel ttm polyval_clmulni cqhci polyval_generic drm_display_helper sdhci mmc_core ghash_clmulni_intel r8169 cec ccp serio_raw sp5100_tco video scsi_dh_rdac scsi_dh_emc scsi_dh_alua ip6_tables ip_tables dm_multipath fuse
CR2: 0000000000000808