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: 0 PID: 12107 Comm: load_policy Tainted: G         C        5.11.12-300.fc34.x86_64 #1
Hardware name: Positivo Informatica SA CHT14B/CHT14B, BIOS V02.05.X 07/11/2017
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:ffff9e8ac8fdbc08 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000004
RDX: 0000000000000000 RSI: ffffffffb2564d40 RDI: ffff8c1b49202a08
RBP: ffffffffb2564d40 R08: ffffc78ac03b7408 R09: ffffc78ac03b7408
R10: 0000000000050408 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8c1b49202a08 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fc214431200(0000) GS:ffff8c1bb3000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000013ec000 CR4: 00000000001006f0
Call Trace:
 policydb_destroy+0x2da/0x360
 policydb_read+0x34f/0x1f90
 ? kmem_cache_alloc_trace+0xef/0x1e0
 ? security_load_policy+0x80/0x4b0
 security_load_policy+0x80/0x4b0
 ? copy_user_enhanced_fast_string+0xe/0x40
 sel_write_load+0x11b/0xac0
 ? selinux_file_permission+0x104/0x150
 vfs_write+0xbf/0x270
 ksys_write+0x4f/0xc0
 do_syscall_64+0x33/0x40
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fc2145c1387
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:00007ffe94fd3098 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000021 RCX: 00007fc2145c1387
RDX: 000000000035e7f2 RSI: 00007fc206ba1000 RDI: 0000000000000004
RBP: 0000000000000004 R08: 0000000000000000 R09: 00007ffe94fd2f30
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000035e7f2
R13: 00007fc206ba1000 R14: 00007fc2146c81a0 R15: 0000000000000003
Modules linked in: uinput snd_seq_dummy snd_hrtimer rfcomm 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 cmac bnep sunrpc vfat fat mei_hdcp iTCO_wdt snd_soc_sst_byt_cht_es8316 intel_pmc_bxt iTCO_vendor_support intel_rapl_msr intel_powerclamp gpio_keys coretemp kvm_intel kvm irqbypass r8723bs(C) intel_cstate uvcvideo pcspkr videobuf2_vmalloc axp288_adc axp288_fuel_gauge videobuf2_memops axp288_charger industrialio extcon_axp288 axp20x_pek videobuf2_v4l2 videobuf2_common cfg80211 videodev joydev mc snd_sof_acpi snd_sof_intel_byt snd_sof_intel_bdw snd_sof_intel_ipc snd_sof intel_xhci_usb_role_switch
 snd_sof_xtensa_dsp ledtrig_audio roles processor_thermal_device snd_intel_sst_acpi mei_txe processor_thermal_rfim snd_hdmi_lpe_audio mei snd_soc_acpi_intel_match processor_thermal_mbox lpc_ich intel_atomisp2_pm processor_thermal_rapl snd_soc_acpi snd_intel_sst_core intel_rapl_common intel_soc_dts_iosf hci_uart snd_soc_sst_atom_hifi2_platform snd_intel_dspcfg btqca soundwire_intel snd_soc_es8316 btrtl soundwire_generic_allocation btbcm snd_soc_core btintel bluetooth snd_compress soundwire_cadence snd_pcm_dmaengine ac97_bus snd_seq intel_hid sparse_keymap snd_seq_device intel_cht_int33fe snd_pcm spi_pxa2xx_platform snd_timer ecdh_generic rfkill snd ecc soundcore dw_dmac int3400_thermal int3403_thermal int3406_thermal int340x_thermal_zone acpi_thermal_rel soc_button_array acpi_pad intel_int0002_vgpio zram ip_tables dm_crypt i915 mmc_block crct10dif_pclmul crc32_pclmul crc32c_intel i2c_algo_bit drm_kms_helper ghash_clmulni_intel cec drm video sdhci_acpi sdhci mmc_core
 pwm_lpss_platform pwm_lpss hid_ite fuse
CR2: 0000000000000000