Backtrace

BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 80000001eb8c0067 P4D 80000001eb8c0067 PUD 1eb9bd067 PMD 0 
Oops: 0000 [#3] PREEMPT SMP PTI
CPU: 2 PID: 4530 Comm: go Tainted: G      D            6.2.15-100.fc36.x86_64 #1
Hardware name: Notebook                         N130BU/N130BU, BIOS 1.05.02 01/16/2017
RIP: 0010:iter_file_splice_write+0x4e/0x3d0
Code: 24 60 48 89 ca b9 06 00 00 00 48 89 74 24 20 65 48 8b 04 25 28 00 00 00 48 89 84 24 90 00 00 00 31 c0 48 89 54 24 58 f3 48 ab <48> 8b 03 44 89 44 24 64 48 89 74 24 68 48 89 44 24 70 49 63 47 58
RSP: 0018:ffffb5a807bafcf0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff96485124d900 RSI: 0000000000000004 RDI: ffffb5a807bafd80
RBP: 0000000000008800 R08: ffff9647887280c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff96485124d900
R13: 0000000000000003 R14: 0000000000000004 R15: 0000000000008800
FS:  000000c00005e490(0000) GS:ffff964af4300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000001ebb2e003 CR4: 00000000003706e0
Call Trace:
 <TASK>
 do_fcntl+0x12b/0x690
 __x64_sys_fcntl+0x90/0xc0
 do_syscall_64+0x58/0x80
 ? kmem_cache_free+0x15/0x3b0
 ? do_sys_openat2+0x9b/0x170
 ? syscall_exit_to_user_mode+0x17/0x40
 ? do_syscall_64+0x67/0x80
 ? syscall_exit_to_user_mode+0x17/0x40
 ? do_syscall_64+0x67/0x80
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x40720e
Code: 48 83 ec 38 e8 13 00 00 00 48 83 c4 38 5d c3 cc cc cc cc cc cc cc cc cc cc cc cc cc 49 89 f2 48 89 fa 48 89 ce 48 89 df 0f 05 <48> 3d 01 f0 ff ff 76 15 48 f7 d8 48 89 c1 48 c7 c0 ff ff ff ff 48
RSP: 002b:000000c0005acbc0 EFLAGS: 00000212 ORIG_RAX: 0000000000000048
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000040720e
RDX: 0000000000008800 RSI: 0000000000000004 RDI: 0000000000000003
RBP: 000000c0005acc00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 0010000000000000
R13: 0005557ff79478f5 R14: 000000c000229520 R15: 000000000000000f
 </TASK>
Modules linked in: uinput snd_seq_dummy snd_hrtimer 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_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables nfnetlink qrtr snd_sof_pci_intel_skl snd_sof_intel_hda_common soundwire_intel soundwire_generic_allocation soundwire_cadence snd_sof_intel_hda snd_sof_pci snd_sof_xtensa_dsp snd_sof snd_sof_utils soundwire_bus snd_soc_avs snd_soc_hda_codec snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_acpi_intel_match sunrpc snd_soc_acpi intel_rapl_msr intel_rapl_common intel_tcc_cooling x86_pkg_temp_thermal binfmt_misc intel_powerclamp iwlmvm snd_soc_core coretemp ee1004 kvm_intel iTCO_wdt intel_pmc_bxt mei_pxp mei_hdcp iTCO_vendor_support snd_hda_codec_hdmi snd_compress mac80211 kvm ac97_bus snd_hda_codec_realtek irqbypass snd_pcm_dmaengine snd_hda_codec_generic
 ledtrig_audio uvcvideo libarc4 videobuf2_vmalloc rapl videobuf2_memops snd_hda_intel videobuf2_v4l2 snd_intel_dspcfg iwlwifi snd_intel_sdw_acpi btusb snd_hda_codec videobuf2_common btrtl intel_cstate videodev btbcm btintel intel_uncore snd_hda_core mc btmtk snd_hwdep cfg80211 snd_seq snd_seq_device bluetooth intel_wmi_thunderbolt snd_pcm joydev mei_me snd_timer pcspkr snd rfkill mei i2c_i801 intel_pch_thermal soundcore intel_xhci_usb_role_switch i2c_smbus acpi_pad zram i915 rtsx_pci_sdmmc mmc_core crct10dif_pclmul crc32_pclmul crc32c_intel polyval_clmulni polyval_generic ghash_clmulni_intel drm_buddy rtsx_pci r8169 sha512_ssse3 drm_display_helper serio_raw video cec ttm wmi ip6_tables ip_tables fuse
CR2: 0000000000000000