Backtrace

BUG: kernel NULL pointer dereference, address: 0000000000000018
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 800000018dd8d067 P4D 800000018dd8d067 PUD 0 
Oops: 0000 [#1] SMP PTI
CPU: 0 PID: 4845 Comm: JS Helper Not tainted 5.11.16-300.fc34.x86_64 #1
Hardware name: LENOVO 4178AFU/4178AFU, BIOS 83ET69WW (1.39 ) 03/26/2012
RIP: 0010:set_page_dirty+0x31/0xb0
Code: 89 fd e8 92 9e 01 00 48 8b 55 08 48 8d 4a ff 83 e2 01 48 0f 45 e9 48 85 c0 74 4d 48 8b 4d 08 48 8b 40 70 48 8d 51 ff 83 e1 01 <48> 8b 40 18 48 0f 44 d5 48 8b 12 f7 c2 00 00 04 00 74 14 48 8b 4d
RSP: 0018:ffffa1fd0359bc70 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff940901ee41f8 RCX: 0000000000000000
RDX: ffffd783c6021f47 RSI: 00007f0572c3f000 RDI: ffffd783c7698dc0
RBP: ffffd783c7698dc0 R08: ffff94089a0d1ed8 R09: ffffd783c6f91488
R10: 0000000000000001 R11: 0000000000000000 R12: 00007f0572c40000
R13: 80000001da637867 R14: ffffa1fd0359bda0 R15: 00007f0572c3f000
FS:  00007f0573591640(0000) GS:ffff94095e200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000018 CR3: 00000001a6542005 CR4: 00000000000606f0
Call Trace:
 unmap_page_range+0xba5/0xe10
 zap_page_range+0xd1/0x140
 ? page_add_new_anon_rmap+0xd6/0x180
 ? find_vma_prev+0x9c/0xa0
 do_madvise.part.0+0x96c/0xd50
 ? __x64_sys_futex+0x73/0x1b0
 ? __x64_sys_madvise+0x56/0x70
 __x64_sys_madvise+0x56/0x70
 do_syscall_64+0x33/0x40
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f059153a49b
Code: c3 66 0f 1f 44 00 00 48 8b 15 d1 79 0c 00 f7 d8 64 89 02 b8 ff ff ff ff eb bc 0f 1f 44 00 00 f3 0f 1e fa b8 1c 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a5 79 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007f0573590b08 EFLAGS: 00000206 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 000000000000003f RCX: 00007f059153a49b
RDX: 0000000000000004 RSI: 0000000000002000 RDI: 00007f0572c3f000
RBP: 0000000000000010 R08: 0000000000002000 R09: 00000000000000bd
R10: 00007f0572c005e8 R11: 0000000000000206 R12: 00007f0591200de0
R13: 00007f0572c00000 R14: 00007f0591200d80 R15: 00007f0591200d80
Modules linked in: rfcomm 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 bnep sunrpc uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common btusb videodev btrtl btbcm btintel mc bluetooth ecdh_generic ecc snd_hda_codec_hdmi iwldvm snd_hda_codec_conexant snd_hda_codec_generic mac80211 snd_hda_intel snd_intel_dspcfg soundwire_intel soundwire_generic_allocation snd_soc_core libarc4 snd_compress snd_pcm_dmaengine intel_rapl_msr soundwire_cadence intel_rapl_common
 snd_hda_codec iwlwifi x86_pkg_temp_thermal intel_powerclamp snd_hda_core ac97_bus snd_hwdep snd_seq snd_seq_device coretemp kvm_intel snd_pcm cfg80211 kvm snd_timer irqbypass rapl thinkpad_acpi iTCO_wdt intel_pmc_bxt iTCO_vendor_support mei_hdcp at24 platform_profile ledtrig_audio snd intel_cstate mei_wdt pcspkr soundcore wmi_bmof rfkill joydev intel_uncore mei_me lpc_ich mei i2c_i801 i2c_smbus zram ip_tables i915 i2c_algo_bit drm_kms_helper cec crct10dif_pclmul drm crc32_pclmul crc32c_intel sdhci_pci cqhci sdhci ghash_clmulni_intel e1000e mmc_core firewire_ohci firewire_core serio_raw crc_itu_t wmi video fuse
CR2: 0000000000000018