Backtrace

BUG: kernel NULL pointer dereference, address: 0000000000000000
#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: 3838 Comm: load_policy Tainted: G         C        5.13.9-200.fc34.x86_64 #1
Hardware name: IRBIS NB29/Cherry Trail CR, BIOS 5.11 11/01/2017
RIP: 0010:hashtab_map+0x27/0x70
Code: 00 00 00 0f 1f 44 00 00 8b 47 08 85 c0 74 60 41 56 45 31 f6 41 55 49 89 fd 41 54 49 89 d4 55 48 89 f5 53 49 8b 55 00 44 89 f0 <48> 8b 1c c2 48 85 db 75 0b eb 25 48 8b 5b 10 48 85 db 74 1c 48 8b
RSP: 0018:ffffbe5883713c08 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000004
RDX: 0000000000000000 RSI: ffffffff9e57bb90 RDI: ffffa0d9a9c85e08
RBP: ffffffff9e57bb90 R08: ffffef1400558808 R09: ffffef1400558808
R10: 00000000000403f8 R11: 0000000000000000 R12: 0000000000000000
R13: ffffa0d9a9c85e08 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fc783578200(0000) GS:ffffa0d9fb180000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000000e66e000 CR4: 00000000001006e0
Call Trace:
 policydb_destroy+0x2da/0x360
 policydb_read+0x34f/0x1f90
 ? kmem_cache_alloc_trace+0x137/0x220
 ? security_load_policy+0x80/0x4b0
 security_load_policy+0x80/0x4b0
 ? copy_user_enhanced_fast_string+0xe/0x40
 sel_write_load+0x118/0xa80
 ? __cond_resched+0x16/0x40
 ? selinux_file_permission+0x104/0x150
 vfs_write+0xbc/0x250
 ksys_write+0x4f/0xc0
 do_syscall_64+0x40/0x80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc783708387
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:00007fff086cfe98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000021 RCX: 00007fc783708387
RDX: 000000000035ec3c RSI: 00007fc783218000 RDI: 0000000000000004
RBP: 0000000000000004 R08: 0000000000000000 R09: 00007fff086cfd30
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000035ec3c
R13: 00007fc783218000 R14: 00007fc78380f1a0 R15: 0000000000000003
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 vfat fat snd_soc_sst_byt_cht_es8316 mei_hdcp intel_rapl_msr gpio_keys intel_powerclamp coretemp kvm_intel r8723bs(C) kvm irqbypass intel_cstate axp288_adc pcspkr axp288_fuel_gauge industrialio axp20x_pek extcon_axp288 axp288_charger uvcvideo cfg80211 videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common snd_sof_acpi_intel_byt snd_sof_intel_ipc snd_sof_acpi snd_sof_xtensa_dsp videodev
 snd_sof ledtrig_audio snd_intel_sst_acpi mc hci_uart snd_soc_acpi_intel_match snd_soc_acpi snd_intel_sst_core btqca processor_thermal_device btrtl snd_soc_sst_atom_hifi2_platform lpc_ich processor_thermal_rfim mei_txe snd_hdmi_lpe_audio processor_thermal_mbox mei btbcm processor_thermal_rapl btintel intel_rapl_common intel_xhci_usb_role_switch intel_soc_dts_iosf intel_atomisp2_pm bluetooth snd_soc_es8316 snd_soc_core snd_compress snd_intel_dspcfg snd_intel_sdw_acpi snd_pcm_dmaengine ac97_bus snd_seq snd_seq_device snd_pcm snd_timer intel_cht_int33fe spi_pxa2xx_platform ecdh_generic snd rfkill ecc dw_dmac soundcore int3400_thermal int3403_thermal int340x_thermal_zone int3406_thermal acpi_thermal_rel intel_int0002_vgpio acpi_pad soc_button_array zram ip_tables i915 mmc_block crct10dif_pclmul crc32_pclmul crc32c_intel i2c_algo_bit drm_kms_helper wdat_wdt ghash_clmulni_intel cec drm video sdhci_acpi sdhci mmc_core pwm_lpss_platform pwm_lpss fuse
CR2: 0000000000000000