Backtrace

BUG: unable to handle page fault for address: ffff9b0e21b968dd
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] SMP PTI
CPU: 3 PID: 37729 Comm: code Not tainted 5.13.12-200.fc34.x86_64 #1
Hardware name: MSI MS-7821/Z97-G45 GAMING (MS-7821), BIOS V2.5 11/10/2014
RIP: 0010:kobj_lookup+0x115/0x160
Code: e8 e0 d5 98 ff 48 8b 44 24 10 48 85 c0 75 3e 49 8b bc 24 f8 07 00 00 e8 49 ab 41 00 48 8b 44 24 18 49 8b 2c c4 48 85 ed 74 14 <8b> 45 08 39 d8 0f 86 33 ff ff ff 48 8b 6d 00 48 85 ed 75 ec 49 8b
RSP: 0018:ffffaea0ccf2bd40 EFLAGS: 00010282
RAX: 0000000050cc1629 RBX: 0000000008800000 RCX: 0000000000000088
RDX: ffff9a9512258000 RSI: 0000000008800000 RDI: ffffffff9bdf12e0
RBP: ffff9b0e21b968d5 R08: 0000000000000000 R09: ffff9a9511c33a98
R10: ffffaea0ccf2bde0 R11: 00000000fffbffee R12: ffff9a948004b800
R13: ffff9a9511c33a98 R14: ffffaea0ccf2bda4 R15: ffff9a9584b55800
FS:  00007f7a35175b40(0000) GS:ffff9a978ecc0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff9b0e21b968dd CR3: 000000028e56c006 CR4: 00000000001706e0
Call Trace:
 chrdev_open+0x137/0x220
 ? cdev_default_release+0x20/0x20
 do_dentry_open+0x14b/0x360
 dentry_open+0x4d/0x70
 ptm_open_peer+0x85/0xe0
 tty_ioctl+0x54b/0x880
 ? do_sys_openat2+0x5d/0x130
 ? security_file_ioctl+0x32/0x50
 __x64_sys_ioctl+0x82/0xb0
 do_syscall_64+0x40/0x80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f7a35f6d0ab
Code: ff ff ff 85 c0 79 9b 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 9d bd 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007ffe41b6d268 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffe41b6e3e0 RCX: 00007f7a35f6d0ab
RDX: 0000000000000102 RSI: 0000000000005441 RDI: 0000000000000039
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000039
R13: 00007ffe41b6e420 R14: 0000000000000000 R15: 00007ffe41b6d2a0
Modules linked in: uinput rfcomm snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc nft_masq 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 squashfs loop b43 cordic mac80211 cfg80211 intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_codec_realtek btusb btrtl snd_hda_codec_generic btbcm btintel ssb ledtrig_audio snd_hda_codec_hdmi bluetooth kvm_intel mmc_core snd_hda_intel snd_intel_dspcfg iTCO_wdt snd_intel_sdw_acpi intel_pmc_bxt libarc4 mei_hdcp at24 iTCO_vendor_support snd_hda_codec kvm
 snd_hda_core ecdh_generic rfkill snd_hwdep ecc joydev snd_seq irqbypass snd_seq_device snd_pcm rapl intel_cstate snd_timer i2c_i801 mxm_wmi pcspkr mei_me intel_uncore snd lpc_ich i2c_smbus bcma mei soundcore acpi_pad zram ip_tables hid_logitech_hidpp uas usb_storage hid_logitech_dj amdgpu drm_ttm_helper ttm iommu_v2 gpu_sched i2c_algo_bit drm_kms_helper cec drm crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel alx mdio wmi video fuse
CR2: ffff9b0e21b968dd