Backtrace

BUG: unable to handle page fault for address: 00000001ff7defe8
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 800000010b5b5067 P4D 800000010b5b5067 PUD 0 
Oops: 0000 [#1] PREEMPT SMP PTI
CPU: 4 PID: 8315 Comm: spcmcontrol Tainted: P           OE     5.17.12-300.fc36.x86_64 #1
Hardware name: Default string Default string/Default string, BIOS V2.02 02/04/2020
RIP: 0010:misc_open+0x4d/0x150
Code: e8 48 8a 4f 00 48 8b 05 a1 d9 85 01 48 3d 00 b8 07 a6 74 33 48 8d 58 e8 eb 10 48 8b 43 18 48 8d 58 e8 48 3d 00 b8 07 a6 74 1d <39> 2b 75 ec 48 8b 43 10 48 85 c0 74 10 48 8b 38 e8 1e de 97 ff 84
RSP: 0018:ffffabb94563fc90 EFLAGS: 00010207
RAX: 00000001ff7df000 RBX: 00000001ff7defe8 RCX: 0000000000000000
RDX: ffff924c21df2940 RSI: ffff924d5c169c00 RDI: ffffffffa607b7e0
RBP: 000000000000007c R08: ffff924d0884fb18 R09: 0000000000000064
R10: ffffabb94563fd00 R11: 0000000000000001 R12: ffff924d5c169c00
R13: ffff924e02f06d00 R14: ffff924d0884fb18 R15: ffff924d013dc4d0
FS:  00007f8952a09100(0000) GS:ffff924e63d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000001ff7defe8 CR3: 000000014c070003 CR4: 00000000003706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 chrdev_open+0xb4/0x210
 ? cdev_device_add+0x80/0x80
 do_dentry_open+0x1c7/0x350
 path_openat+0xacd/0x1210
 ? _raw_spin_unlock+0x16/0x30
 do_filp_open+0xa1/0x130
 ? __check_object_size+0x126/0x140
 ? _raw_spin_unlock+0x16/0x30
 ? alloc_fd+0xd1/0x170
 do_sys_openat2+0x76/0x130
 __x64_sys_openat+0x5c/0x70
 do_syscall_64+0x3a/0x80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f895302ffb0
Code: 48 89 44 24 20 75 97 44 89 54 24 0c e8 29 c6 f8 ff 44 8b 54 24 0c 89 da 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 38 44 89 c7 89 44 24 0c e8 7c c6 f8 ff 8b 44
RSP: 002b:00007fff45cf7470 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f895302ffb0
RDX: 0000000000000002 RSI: 00007fff45cf7a10 RDI: 00000000ffffff9c
RBP: 00007fff45cf7a10 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007fff45cf7a10
R13: 0000000000000001 R14: 00007fff45cf7a19 R15: 00007f895377b000
 </TASK>
Modules linked in: spcm4(POE) tls uinput snd_seq_dummy snd_hrtimer 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_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set rfkill nf_tables nfnetlink qrtr sunrpc snd_sof_pci_intel_cnl 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 soundwire_bus snd_hda_codec_hdmi snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_acpi_intel_match snd_hda_codec_realtek snd_soc_acpi snd_soc_core snd_hda_codec_generic ledtrig_audio snd_compress ac97_bus binfmt_misc snd_pcm_dmaengine snd_hda_intel intel_rapl_msr intel_rapl_common vfat fat snd_intel_dspcfg intel_tcc_cooling x86_pkg_temp_thermal snd_intel_sdw_acpi intel_powerclamp coretemp snd_hda_codec kvm_intel snd_hda_core snd_hwdep
 snd_seq iTCO_wdt snd_seq_device intel_pmc_bxt snd_pcm mei_hdcp mei_pxp mei_wdt kvm iTCO_vendor_support ee1004 snd_timer irqbypass rapl intel_cstate snd intel_uncore mei_me i2c_i801 wmi_bmof pcspkr soundcore i2c_smbus joydev mei intel_pch_thermal acpi_tad acpi_pad zram i915 crct10dif_pclmul crc32_pclmul crc32c_intel igb e1000e ghash_clmulni_intel dca ttm wmi video pinctrl_cannonlake ip6_tables ip_tables fuse [last unloaded: spcm4]
CR2: 00000001ff7defe8