Backtrace

BUG: kernel NULL pointer dereference, address: 0000000000000008
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] SMP PTI
CPU: 3 PID: 7821 Comm: chrome Tainted: P        W  OE     5.13.12-200.fc34.x86_64 #1
Hardware name: Apple Inc. MacBookPro8,1/Mac-94245B3640C91C81, BIOS 83.0.0.0.0 12/19/2018
RIP: 0010:rb_insert_color+0x14/0x120
Code: c0 75 eb 4c 89 c0 c3 45 31 c0 eb f7 66 2e 0f 1f 84 00 00 00 00 00 48 8b 07 48 85 c0 0f 84 b3 00 00 00 48 8b 10 f6 c2 01 75 5b <48> 8b 4a 08 48 39 c1 74 53 48 85 c9 74 05 f6 01 01 74 72 48 8b 48
RSP: 0000:ffffb4ab8602fc40 EFLAGS: 00010246
RAX: ffff8d9a6023d2a0 RBX: ffff8d9a3adeb7e0 RCX: ffff8d9a6023d2a0
RDX: 0000000000000000 RSI: ffff8d98657d1268 RDI: ffff8d99e87b6290
RBP: ffff8d98e9b93870 R08: 0000000000000050 R09: ffffb4ab8602fd00
R10: 0000000000000026 R11: 0000000000000000 R12: 0000000000137000
R13: ffff8d98657d1268 R14: 0000000000136000 R15: ffff8d98e9b93870
FS:  00007f757d8bdd40(0000) GS:ffff8d9b1fb80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000008 CR3: 000000016e47c003 CR4: 00000000000606e0
Call Trace:
 split_state+0xaf/0xf0
 set_extent_bit+0x35d/0x640
 lock_extent_bits+0x5b/0x80
 btrfs_page_mkwrite+0x16d/0x5f0
 do_page_mkwrite+0x4f/0xf0
 do_wp_page+0x21e/0x2d0
 __handle_mm_fault+0xe1d/0x1570
 handle_mm_fault+0xd5/0x2b0
 do_user_addr_fault+0x1b7/0x670
 exc_page_fault+0x78/0x160
 ? asm_exc_page_fault+0x8/0x30
 asm_exc_page_fault+0x1e/0x30
RIP: 0033:0x55acd3040176
Code: 00 31 db 49 8b 47 10 48 85 c0 74 4b 49 8b 47 10 44 89 f1 f0 0f c1 0c 98 42 8d 14 31 49 63 c6 49 63 f4 48 0f af f0 49 8b 47 08 <f0> 48 01 70 08 49 8b 47 08 f0 44 01 70 10 31 ca 45 85 f6 0f 9f c0
RSP: 002b:00007fff4c4cf970 EFLAGS: 00010202
RAX: 00007f756e6e30c8 RBX: 000000000000000c RCX: 0000000000000003
RDX: 0000000000000004 RSI: 0000000000000019 RDI: 0000174a0a1b34c0
RBP: 00007fff4c4cf990 R08: 0000000000000000 R09: 0000000000400000
R10: 0000000000001784 R11: 00007f757efda8d0 R12: 0000000000000019
R13: 0000000000000000 R14: 0000000000000001 R15: 0000174a0a1b34c0
Modules linked in: uinput rfcomm 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 ip6_tables iptable_filter bnep sunrpc nls_utf8 hfsplus intel_rapl_msr iTCO_wdt joydev at24 intel_rapl_common mei_hdcp intel_pmc_bxt iTCO_vendor_support x86_pkg_temp_thermal intel_powerclamp coretemp applesmc kvm_intel kvm snd_hda_codec_hdmi irqbypass rapl snd_hda_codec_cirrus intel_cstate snd_hda_codec_generic ledtrig_audio btusb btrtl btbcm btintel snd_hda_intel bluetooth intel_uncore snd_intel_dspcfg pcspkr snd_intel_sdw_acpi
 snd_hda_codec snd_hda_core wl(POE) snd_hwdep snd_seq uvcvideo videobuf2_vmalloc videobuf2_memops ecdh_generic snd_seq_device videobuf2_v4l2 ecc snd_pcm videobuf2_common cfg80211 bcm5974 videodev mc snd_timer i2c_i801 apple_mfi_fastcharge lpc_ich i2c_smbus snd soundcore thunderbolt rfkill mei_me mei sbs acpi_als industrialio_triggered_buffer kfifo_buf sbshc apple_gmux industrialio apple_bl zram ip_tables hid_logitech_hidpp hid_logitech_dj i915 i2c_algo_bit crct10dif_pclmul drm_kms_helper crc32_pclmul crc32c_intel cec hid_appleir firewire_ohci ghash_clmulni_intel firewire_core drm sdhci_pci cqhci sdhci crc_itu_t mmc_core tg3 video hid_apple fuse
CR2: 0000000000000008