Backtrace

BUG: kernel NULL pointer dereference, address: 0000000000000058
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] SMP PTI
CPU: 0 PID: 2570 Comm: systemd-sleep Not tainted 5.11.16-300.fc34.x86_64 #1
Hardware name: LENOVO 20089                           /Base Board Product Name, BIOS 40CN09WW(V3.08) 10/07/2011
RIP: 0010:bdi_split_work_to_wbs+0xf2/0x2e0
Code: 00 00 45 84 e4 74 0c 49 8b 47 08 a8 02 0f 85 a2 00 00 00 48 b9 ff ff ff ff ff ff ff 7f 49 8b 17 4d 8b 2e 49 8b 87 28 01 00 00 <48> 8b 52 58 49 39 cd 74 18 48 39 d0 73 13 49 0f af c5 89 d6 48 8d
RSP: 0018:ffffa57700c67c50 EFLAGS: 00010246
RAX: 0000000000006400 RBX: ffff952c45c386f0 RCX: 7fffffffffffffff
RDX: 0000000000000000 RSI: ffffa57700c67d08 RDI: ffff952c45c38400
RBP: ffff952c45c38758 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000365 R11: 0000000000000000 R12: 0000000000000000
R13: 7fffffffffffffff R14: ffffa57700c67d08 R15: ffff952c47f00000
FS:  00007f4e7e4e1b40(0000) GS:ffff952c7ba00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000058 CR3: 000000010e2de002 CR4: 00000000000606f0
Call Trace:
 ? __irq_exit_rcu+0x4c/0x100
 ? common_interrupt+0x74/0x130
 ? __x64_sys_tee+0xd0/0xd0
 sync_inodes_sb+0xb9/0x2a0
 ? __x64_sys_tee+0xd0/0xd0
 iterate_supers+0x8e/0x100
 ksys_sync+0x30/0x90
 ksys_sync_helper+0x13/0x80
 pm_suspend.cold+0x235/0x374
 state_store+0x71/0xd0
 kernfs_fop_write_iter+0x11c/0x1b0
 new_sync_write+0x108/0x180
 vfs_write+0x1b8/0x270
 ksys_write+0x4f/0xc0
 do_syscall_64+0x33/0x40
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f4e7f15b7a7
Code: 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
RSP: 002b:00007ffdba077f18 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f4e7f15b7a7
RDX: 0000000000000004 RSI: 00007ffdba078000 RDI: 0000000000000004
RBP: 00007ffdba078000 R08: 0000000000000000 R09: 0000000000000000
R10: 00007f4e7f1a65c0 R11: 0000000000000246 R12: 0000000000000004
R13: 000056151110e650 R14: 0000000000000004 R15: 00007f4e7f22e700
Modules linked in: uinput snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp 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 snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg soundwire_intel soundwire_generic_allocation snd_soc_core ath9k snd_compress ath9k_common snd_pcm_dmaengine ath9k_hw soundwire_cadence snd_hda_codec intel_rapl_msr uvcvideo snd_hda_core intel_rapl_common mei_hdcp iTCO_wdt ac97_bus mac80211 at24 snd_hwdep videobuf2_vmalloc intel_pmc_bxt snd_seq sunrpc
 iTCO_vendor_support videobuf2_memops x86_pkg_temp_thermal videobuf2_v4l2 videobuf2_common intel_powerclamp coretemp rapl ath snd_seq_device intel_cstate videodev intel_uncore vfat snd_pcm fat cfg80211 rtsx_usb_ms memstick mc mei_me i2c_i801 joydev ideapad_laptop i2c_smbus mei pcspkr snd_timer platform_profile sparse_keymap snd lpc_ich rfkill libarc4 soundcore wmi zram ip_tables i915 i2c_algo_bit drm_kms_helper rtsx_usb_sdmmc mmc_core cec crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel drm serio_raw rtsx_usb atl1c video fuse
CR2: 0000000000000058