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: 1 PID: 55761 Comm: load_policy Not tainted 5.13.9-200.fc34.x86_64 #1
Hardware name: SAMSUNG ELECTRONICS CO., LTD. 370E4K/NP370E4K-KW2BR, BIOS P06RCX.075.160311.JJ 03/11/2016
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:ffffacd14b26bc08 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000004
RDX: 0000000000000000 RSI: ffffffffa557bb90 RDI: ffff9adb89aed608
RBP: ffffffffa557bb90 R08: ffffcfe400135a08 R09: ffffcfe400135a08
R10: 0000000000023390 R11: 0000000000000000 R12: 0000000000000000
R13: ffff9adb89aed608 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f1b8312b200(0000) GS:ffff9adc96c80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000000714e003 CR4: 00000000003706e0
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: 0033:0x7f1b832bb387
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:00007ffebccc3158 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000021 RCX: 00007f1b832bb387
RDX: 000000000035ec3c RSI: 00007f1b7589b000 RDI: 0000000000000004
RBP: 0000000000000004 R08: 0000000000000000 R09: 00007ffebccc2ff0
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000035ec3c
R13: 00007f1b7589b000 R14: 00007f1b833c21a0 R15: 0000000000000003
Modules linked in: xt_nat veth rfcomm snd_seq_dummy snd_hrtimer nf_conntrack_netlink xt_addrtype br_netfilter 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 overlay ip6table_filter ip6_tables iptable_filter bnep sunrpc vfat fat intel_rapl_msr mei_hdcp at24 iTCO_wdt intel_pmc_bxt iTCO_vendor_support intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel pktcdvd kvm irqbypass rapl intel_cstate ath9k intel_uncore ath3k ath9k_common ath9k_hw pcspkr btusb uvcvideo btrtl rtsx_usb_ms mac80211 memstick videobuf2_vmalloc btbcm btintel
 videobuf2_memops bluetooth videobuf2_v4l2 snd_usb_audio videobuf2_common ath joydev snd_usbmidi_lib videodev snd_rawmidi cfg80211 snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi mc i2c_i801 ecdh_generic i2c_smbus snd_hda_intel ecc snd_intel_dspcfg snd_intel_sdw_acpi rfkill libarc4 mei_me snd_hda_codec lpc_ich mei snd_hda_core snd_hwdep snd_seq snd_seq_device snd_pcm snd_timer snd acpi_pad soundcore zram ip_tables rtsx_usb_sdmmc mmc_core rtsx_usb i915 i2c_algo_bit drm_kms_helper crct10dif_pclmul crc32_pclmul cec crc32c_intel drm ghash_clmulni_intel serio_raw r8169 video wmi pinctrl_lynxpoint fuse
CR2: 0000000000000000