Backtrace

WARNING: CPU: 0 PID: 31603 at mm/vmalloc.c:2826 vfree.part.0+0x106/0x230
Modules linked in: uas usb_storage uinput rfcomm snd_seq_dummy snd_hrtimer ip6table_nat tun 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 nvidia_drm(POE) nvidia_modeset(POE) nvidia_uvm(POE) nft_ct nft_chain_nat nf_nat nf_conntrack nvidia(POE) nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables nfnetlink qrtr bnep sunrpc snd_sof_pci_intel_cnl snd_sof_intel_hda_common soundwire_intel snd_sof_intel_hda_mlink soundwire_cadence snd_sof_intel_hda snd_sof_pci snd_sof_xtensa_dsp iwlmvm snd_sof snd_sof_utils soundwire_generic_allocation soundwire_bus binfmt_misc snd_soc_skl mac80211 intel_tcc_cooling snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi x86_pkg_temp_thermal intel_powerclamp snd_soc_core snd_hda_codec_realtek coretemp snd_hda_codec_generic ledtrig_audio kvm_intel snd_compress snd_hda_codec_hdmi ac97_bus snd_pcm_dmaengine snd_hda_intel snd_intel_dspcfg
 libarc4 kvm snd_intel_sdw_acpi mei_pxp iTCO_wdt snd_hda_codec ee1004 mei_hdcp intel_pmc_bxt irqbypass iTCO_vendor_support snd_hda_core uvcvideo btusb snd_hwdep rapl intel_rapl_msr btrtl uvc snd_seq iwlwifi videobuf2_vmalloc vfat btintel videobuf2_memops fat snd_seq_device intel_cstate btbcm btmtk intel_uncore videobuf2_v4l2 intel_wmi_thunderbolt wmi_bmof snd_pcm cfg80211 pcspkr bluetooth processor_thermal_device_pci_legacy i2c_i801 videobuf2_common i2c_smbus processor_thermal_device processor_thermal_rfim snd_timer mei_me processor_thermal_mbox snd processor_thermal_rapl mei ideapad_laptop intel_rapl_common sparse_keymap idma64 soundcore intel_soc_dts_iosf intel_pch_thermal platform_profile int3403_thermal rfkill int340x_thermal_zone int3400_thermal acpi_tad joydev acpi_pad acpi_thermal_rel v4l2loopback(OE) loop zram i915 i2c_algo_bit drm_buddy nvme ttm nvme_core drm_display_helper crct10dif_pclmul crc32_pclmul crc32c_intel polyval_clmulni hid_multitouch ucsi_acpi polyval_generic ghash_clmulni_intel
 sha512_ssse3 typec_ucsi sha256_ssse3 r8169 sha1_ssse3 cec typec nvme_common i2c_hid_acpi i2c_hid video wmi pinctrl_cannonlake serio_raw ip6_tables ip_tables fuse v4l2loopback_dc(OE) videodev mc
CPU: 0 PID: 31603 Comm: gst-plugin-scan Tainted: P           OE      6.6.8-200.fc39.x86_64 #1
Hardware name: LENOVO 82AU/LNVNB161216, BIOS EFCN39WW 08/03/2020
RIP: 0010:vfree.part.0+0x106/0x230
Code: fb ff 4c 89 e7 5b 5d 41 5c 41 5d 41 5e e9 d2 30 fc ff 48 83 e8 01 e9 5a ff ff ff 48 89 de 48 c7 c7 80 59 92 b2 e8 0a 00 d4 ff <0f> 0b 5b 5d 41 5c 41 5d 41 5e c3 cc cc cc cc 8b 48 28 85 d2 0f 84
RSP: 0018:ffffc90006fe3e40 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffffc90009a1d000 RCX: 0000000000000027
RDX: ffff88844e221588 RSI: 0000000000000001 RDI: ffff88844e221580
RBP: ffff88822b4ce9a0 R08: 0000000000000000 R09: ffffc90006fe3cc8
R10: 0000000000000003 R11: ffffffffb3346508 R12: 0000000000000000
R13: ffff88810142c020 R14: ffff888102796b40 R15: 0000000000000000
FS:  00007f487aeb9740(0000) GS:ffff88844e200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa37d607a30 CR3: 00000002a1a90001 CR4: 00000000007706f0
PKRU: 55555554
Call Trace:
 <TASK>
 ? vfree.part.0+0x106/0x230
 ? __warn+0x81/0x130
 ? vfree.part.0+0x106/0x230
 ? report_bug+0x171/0x1a0
 ? console_unlock+0x78/0x120
 ? handle_bug+0x3c/0x80
 ? exc_invalid_op+0x17/0x70
 ? asm_exc_invalid_op+0x1a/0x20
 ? vfree.part.0+0x106/0x230
 v4l2_loopback_close+0x8e/0x110 [v4l2loopback_dc]
 v4l2_release+0xf0/0x100 [videodev]
 __fput+0xf2/0x290
 __x64_sys_close+0x3d/0x80
 do_syscall_64+0x5d/0x90
 ? syscall_exit_to_user_mode+0x2b/0x40
 ? do_syscall_64+0x6c/0x90
 ? do_syscall_64+0x6c/0x90
 ? exc_page_fault+0x7f/0x180
 entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7f487b3cc594
Code: 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 80 3d d5 cd 0d 00 00 74 13 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 3c c3 0f 1f 00 55 48 89 e5 48 83 ec 10 89 7d
RSP: 002b:00007ffd316dfe88 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00007ffd316e0090 RCX: 00007f487b3cc594
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000008
RBP: 00007ffd316e0130 R08: 0000000000000018 R09: 505f4c34565f4449
R10: 00007f487ab98400 R11: 0000000000000202 R12: 000055c3f7ca13d0
R13: 000055c3f7ca12e0 R14: 00007f487b70add1 R15: 0000000000000008
 </TASK>