Backtrace

BUG: unable to handle page fault for address: ffff9a0bb8a29ac0
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] SMP PTI
CPU: 0 PID: 3979 Comm: nautilus Not tainted 5.11.12-300.fc34.x86_64 #1
Hardware name: Dell Inc. Latitude E5450/0WWHR7, BIOS A23 11/25/2019
RIP: 0010:refill_obj_stock+0x3f/0xa0
Code: 49 89 c4 fa 66 0f 1f 44 00 00 48 c7 c5 a0 79 02 00 65 48 03 2d 3a 0e d0 72 48 39 7d 10 74 42 48 89 fb 48 89 ef e8 11 ff ff ff <48> 8b 03 a8 03 75 4a 65 48 ff 00 e8 d1 66 e4 ff 48 89 5d 10 31 c0
RSP: 0018:ffffc12f8a1efc40 EFLAGS: 00010082
RAX: 00004323198159f8 RBX: ffff9a0bb8a29ac0 RCX: 0000000000000007
RDX: 0000000000000428 RSI: 00000000000000d0 RDI: ffff9e0c664279a0
RBP: ffff9e0c664279a0 R08: 0000000000000001 R09: 0000000000000000
R10: ffff9e0ba270fbb8 R11: 0000000000000001 R12: 0000000000000212
R13: 00000000000000d0 R14: ffff9e0b401d3100 R15: ffffee7b440ef980
FS:  0000000000000000(0000) GS:ffff9e0c66400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff9a0bb8a29ac0 CR3: 0000000173a10001 CR4: 00000000003706f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 kmem_cache_free+0x2ac/0x430
 ? remove_vma+0x5b/0x70
 remove_vma+0x5b/0x70
 exit_mmap+0xd4/0x1c0
 mmput+0x61/0x140
 do_exit+0x30c/0xac0
 do_group_exit+0x33/0xa0
 get_signal+0x14f/0x8a0
 ? send_signal+0x3f/0x120
 arch_do_signal_or_restart+0xf2/0x700
 ? force_sig_fault+0x4c/0x70
 exit_to_user_mode_prepare+0xde/0x1b0
 ? asm_exc_page_fault+0x8/0x30
 irqentry_exit_to_user_mode+0x5/0x30
 asm_exc_page_fault+0x1e/0x30
RIP: 0033:0x7f21cc70084e
Code: Unable to access opcode bytes at RIP 0x7f21cc700824.
RSP: 002b:00007ffe76e74950 EFLAGS: 00010202
RAX: 00007f21ccd2f940 RBX: 000055edd2e4b540 RCX: 000055edd33da010
RDX: 00007f21b401a6c0 RSI: 0000000000000029 RDI: 00007b21ccd2f940
RBP: 00007f21ccd2f940 R08: 000055edd3434090 R09: 000055edd303cfb0
R10: 0000000000000000 R11: 000055edd2e067c8 R12: 0000000000000029
R13: 00007f21b401a6c0 R14: 000055edd33da010 R15: 000055edd3434090
Modules linked in: snd_usb_audio snd_usbmidi_lib snd_rawmidi uinput snd_seq_dummy snd_hrtimer rfcomm 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 cmac bnep sunrpc uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi iwlmvm x86_pkg_temp_thermal intel_powerclamp mac80211 libarc4 coretemp snd_hda_intel snd_intel_dspcfg soundwire_intel videodev iwlwifi kvm_intel iTCO_wdt soundwire_generic_allocation mc kvm irqbypass intel_pmc_bxt snd_soc_core mei_wdt iTCO_vendor_support i2c_i801 btusb ppdev btrtl btbcm btintel rapl
 intel_cstate mei_hdcp joydev bluetooth dell_laptop ledtrig_audio ecdh_generic intel_uncore dell_smm_hwmon ecc i2c_smbus dell_wmi intel_rapl_msr pcspkr sparse_keymap cfg80211 lpc_ich dell_smbios dcdbas dell_wmi_descriptor wmi_bmof snd_compress snd_pcm_dmaengine soundwire_cadence snd_hda_codec snd_hda_core ac97_bus snd_hwdep snd_seq snd_seq_device snd_pcm parport_pc processor_thermal_device processor_thermal_rfim processor_thermal_mbox processor_thermal_rapl parport snd_timer snd dell_rbtn int3403_thermal intel_rapl_common mei_me int3402_thermal dell_smo8800 soundcore int3400_thermal acpi_thermal_rel int340x_thermal_zone intel_soc_dts_iosf mei acpi_pad rfkill zram ip_tables i915 nouveau drm_ttm_helper ttm i2c_algo_bit drm_kms_helper mxm_wmi crct10dif_pclmul crc32_pclmul crc32c_intel cec drm sdhci_pci ghash_clmulni_intel cqhci e1000e serio_raw sdhci mmc_core wmi video fuse
CR2: ffff9a0bb8a29ac0