Backtrace

WARNING: CPU: 12 PID: 13622 at mm/vmalloc.c:2826 vfree.part.0+0x106/0x230
Modules linked in: uinput rfcomm xt_nat veth snd_seq_dummy snd_hrtimer xt_conntrack xt_MASQUERADE nf_conntrack_netlink xt_addrtype nft_compat br_netfilter bridge stp llc 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 overlay ip_set nf_tables nfnetlink qrtr bnep nvidia_drm(POE) nvidia_modeset(POE) nvidia_uvm(POE) xone_wired(OE) xone_gip_headset(OE) xone_gip_madcatz_strat(OE) xone_gip_gamepad(OE) ff_memless xone_gip_chatpad(OE) nvidia(POE) sunrpc binfmt_misc snd_hda_codec_realtek intel_rapl_msr intel_rapl_common snd_hda_codec_generic snd_hda_codec_hdmi edac_mce_amd snd_hda_intel snd_intel_dspcfg snd_usb_audio kvm_amd rtw88_8822be snd_intel_sdw_acpi snd_hda_codec snd_usbmidi_lib rtw88_8822b kvm snd_ump snd_hda_core eeepc_wmi rtw88_pci snd_rawmidi btusb asus_wmi snd_hwdep btrtl btintel ucsi_ccg snd_seq rtw88_core ledtrig_audio irqbypass
 typec_ucsi snd_seq_device vfat btbcm typec snd_pcm fat asus_wmi_sensors btmtk sparse_keymap mac80211 platform_profile rapl snd_timer bluetooth wmi_bmof snd libarc4 pcspkr acpi_cpufreq video soundcore i2c_piix4 k10temp i2c_nvidia_gpu gpio_amdpt joydev gpio_generic xone_dongle(OE) xone_gip(OE) cfg80211 rfkill v4l2loopback_dc(OE) loop zram dm_crypt hid_logitech_hidpp crct10dif_pclmul crc32_pclmul crc32c_intel polyval_clmulni polyval_generic ghash_clmulni_intel sha512_ssse3 nvme sha256_ssse3 igb ccp sha1_ssse3 sp5100_tco nvme_core dca i2c_algo_bit nvme_auth wmi hid_logitech_dj scsi_dh_rdac scsi_dh_emc scsi_dh_alua ip6_tables ip_tables dm_multipath fuse videodev mc i2c_dev
CPU: 12 PID: 13622 Comm: VideoCapture Tainted: P           OE      6.8.4-200.fc39.x86_64 #1
Hardware name: System manufacturer System Product Name/ROG STRIX B450-I GAMING, BIOS 2801 09/18/2019
RIP: 0010:vfree.part.0+0x106/0x230
Code: fb ff 4c 89 e7 5b 5d 41 5c 41 5d 41 5e e9 e2 2c 01 00 48 83 e8 01 e9 5a ff ff ff 48 89 de 48 c7 c7 a0 de b3 9d e8 9a 5c d3 ff <0f> 0b 5b 5d 41 5c 41 5d 41 5e e9 7b 1a c6 00 8b 48 28 85 d2 0f 84
RSP: 0018:ffffb163d2cc7e30 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffffb163e5001000 RCX: 0000000000000027
RDX: ffff8b083ed218c8 RSI: 0000000000000001 RDI: ffff8b083ed218c0
RBP: ffff8b037dad15c0 R08: 0000000000000000 R09: ffffb163d2cc7cc0
R10: ffffb163d2cc7cb8 R11: 0000000000000003 R12: 0000000000000000
R13: ffff8b014da79ca0 R14: ffff8b01450bbe00 R15: 0000000000000000
FS:  00007fab3668d6c0(0000) GS:ffff8b083ed00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fab3668bf38 CR3: 00000005976a8000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 ? vfree.part.0+0x106/0x230
 ? __warn+0x81/0x130
 ? vfree.part.0+0x106/0x230
 ? report_bug+0x171/0x1a0
 ? 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+0xf3/0x100 [videodev]
 __fput+0x9a/0x2c0
 __x64_sys_close+0x3d/0x80
 do_syscall_64+0x89/0x170
 ? srso_return_thunk+0x5/0x5f
 ? do_user_addr_fault+0x304/0x670
 ? srso_return_thunk+0x5/0x5f
 ? srso_return_thunk+0x5/0x5f
 entry_SYSCALL_64_after_hwframe+0x73/0x7b
RIP: 0033:0x7fab7a42e9fc
Code: 0f 05 48 3d 00 f0 ff ff 77 3c c3 0f 1f 00 55 48 89 e5 48 83 ec 10 89 7d fc e8 c0 65 f8 ff 8b 7d fc 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 2c 89 d7 89 45 fc e8 22 66 f8 ff 8b 45 fc c9
RSP: 002b:00007fab3668c5d0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00007fab6ed0c88e RCX: 00007fab7a42e9fc
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000068
RBP: 00007fab3668c5e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000068
R13: 0000000000000000 R14: 00007fab3668c668 R15: 0000000000000000
 </TASK>