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: 2 PID: 3076705 Comm: load_policy Tainted: G          IOE     5.9.16-200.fc33.x86_64 #1
Hardware name: Acer Aspire V5-573G/Dazzle_HW, BIOS V2.20 08/29/2013
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:ffffab10896e3c88 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000003
RDX: 0000000000000000 RSI: ffffffff9f53ac50 RDI: ffff8ae9499b1c50
RBP: ffffffff9f53ac50 R08: ffffd148c009b008 R09: ffffd148c009b008
R10: 0000000000000001 R11: 0000000000000006 R12: 0000000000000000
R13: ffff8ae9499b1c50 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f778ce7d800(0000) GS:ffff8aeb17280000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000002065f6003 CR4: 00000000001706e0
Call Trace:
 policydb_destroy+0x2da/0x360
 policydb_read+0x34c/0x1fb0
 ? kmem_cache_alloc_trace+0xef/0x1f0
 ? security_load_policy+0x109/0x5c0
 security_load_policy+0x109/0x5c0
 ? copy_user_enhanced_fast_string+0xe/0x30
 sel_write_load+0xeb/0x1b0
 vfs_write+0xc7/0x210
 ksys_write+0x4f/0xc0
 do_syscall_64+0x33/0x40
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f778d033e87
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:00007ffc46d18cb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000020 RCX: 00007f778d033e87
RDX: 00000000007e92d4 RSI: 00007f7785bcf000 RDI: 0000000000000004
RBP: 0000000000000004 R08: 00007f778d0cb040 R09: 00007ffc46d18b50
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7785bcf000
R13: 00000000007e92d4 R14: 000000000000000f R15: 0000000000000003
Modules linked in: veth nf_conntrack_netlink xt_addrtype br_netfilter overlay hfsplus vfat fat uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev mc lp parport nls_utf8 isofs uas usb_storage uinput rfcomm xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT tun bridge stp llc ccm nf_nat_tftp nf_conntrack_tftp 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 nf_tables ebtable_nat ebtable_broute 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 nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter cmac bnep bbswitch(OE) sunrpc ath3k ath9k ath9k_common intel_rapl_msr ath9k_hw snd_hda_codec_hdmi btusb mac80211 btrtl btbcm btintel intel_rapl_common x86_pkg_temp_thermal
 intel_powerclamp coretemp bluetooth kvm_intel mei_hdcp kvm iTCO_wdt intel_pmc_bxt iTCO_vendor_support snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_intel irqbypass snd_intel_dspcfg rapl snd_hda_codec intel_cstate ath intel_uncore acer_wmi joydev snd_hda_core wmi_bmof cfg80211 sparse_keymap i2c_i801 ecdh_generic snd_hwdep snd_seq i2c_smbus ecc snd_seq_device snd_pcm mei_me mei snd_timer rfkill snd libarc4 lpc_ich soundcore binfmt_misc zram ip_tables i915 rtsx_pci_sdmmc mmc_core i2c_algo_bit drm_kms_helper crct10dif_pclmul crc32_pclmul crc32c_intel cec ghash_clmulni_intel drm serio_raw r8169 rtsx_pci wmi video fuse
CR2: 0000000000000000