Backtrace

WARNING: CPU: 3 PID: 24983 at mm/vmalloc.c:3367 vfree.part.0+0x113/0x260
Modules linked in: uinput rfcomm snd_seq_dummy snd_hrtimer xt_conntrack xt_MASQUERADE bridge stp llc xt_set ip_set xt_addrtype nft_compat overlay 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 nf_tables qrtr bnep snd_sof_pci_intel_skl snd_sof_intel_hda_generic soundwire_intel snd_sof_intel_hda_sdw_bpt snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_intel_hda_mlink snd_sof_intel_hda soundwire_cadence snd_sof_pci snd_sof_xtensa_dsp snd_sof snd_sof_utils snd_soc_acpi_intel_match snd_soc_acpi_intel_sdca_quirks soundwire_generic_allocation snd_soc_acpi intel_uncore_frequency crc8 sunrpc soundwire_bus intel_uncore_frequency_common iwlmvm snd_soc_sdca snd_soc_avs intel_tcc_cooling x86_pkg_temp_thermal intel_powerclamp snd_soc_hda_codec coretemp snd_hda_codec_hdmi jc42 snd_hda_ext_core snd_hda_codec_generic mac80211 snd_soc_core kvm_intel
 ee1004 snd_compress mei_hdcp ac97_bus snd_pcm_dmaengine snd_hda_intel iTCO_wdt snd_intel_dspcfg snd_intel_sdw_acpi mei_pxp intel_pmc_bxt iTCO_vendor_support libarc4 intel_rapl_msr kvm snd_hda_codec snd_hda_core btusb irqbypass uvcvideo rapl asus_nb_wmi intel_cstate iwlwifi btrtl snd_hwdep btintel asus_wmi snd_seq uvc videobuf2_vmalloc snd_seq_device snd_pcm sparse_keymap wmi_bmof btbcm snd_timer platform_profile videobuf2_memops cfg80211 intel_uncore btmtk videobuf2_v4l2 i2c_i801 videobuf2_common pcspkr snd i2c_smbus processor_thermal_device_pci_legacy bluetooth soundcore processor_thermal_device processor_thermal_wt_hint processor_thermal_rfim mei_me processor_thermal_rapl intel_rapl_common mei processor_thermal_wt_req processor_thermal_power_floor rfkill processor_thermal_mbox int340x_thermal_zone idma64 intel_pch_thermal intel_xhci_usb_role_switch intel_soc_dts_iosf vfat fat intel_pmc_core pmt_telemetry pmt_class acpi_pad intel_vsec int3400_thermal asus_wireless acpi_thermal_rel joydev v4l2loopback(OE)
 v4l2loopback_dc(OE) loop nfnetlink zram lz4hc_compress lz4_compress i915 i2c_algo_bit drm_buddy ttm polyval_clmulni hid_multitouch polyval_generic ghash_clmulni_intel drm_display_helper spi_pxa2xx_platform sha512_ssse3 i2c_hid_acpi sha256_ssse3 dw_dmac sha1_ssse3 spi_pxa2xx_core cec i2c_hid video wmi serio_raw i2c_dev fuse videodev mc
CPU: 3 UID: 1000 PID: 24983 Comm: Discord Tainted: G        W  OE       6.15.4-200.fc42.x86_64 #1 PREEMPT(lazy) 
Tainted: [W]=WARN, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
Hardware name: ASUSTeK COMPUTER INC. X510UA/X510UA, BIOS X510UA.312 04/29/2020
RIP: 0010:vfree.part.0+0x113/0x260
Code: 48 8b 7b 20 e8 7e 13 02 00 48 89 df 48 83 c4 20 5b 5d 41 5c 41 5e e9 5c 0e 02 00 48 89 ee 48 c7 c7 00 c4 85 9e e8 ed 92 ca ff <0f> 0b 48 83 c4 20 5b 5d 41 5c 41 5e c3 cc cc cc cc 85 c0 0f 84 21
RSP: 0018:ffffcb7381cc7d70 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8967c1c00000 RCX: 0000000000000027
RDX: ffff896b0ed9cb88 RSI: 0000000000000001 RDI: ffff896b0ed9cb80
RBP: ffffcb7398668000 R08: 0000000000000000 R09: ffffcb7381cc7c18
R10: ffffffff9f33bb88 R11: 00000000ffffdfff R12: ffff8967caccf530
R13: ffff8968e8e22020 R14: ffff8967c04bc240 R15: 0000000000000000
FS:  00007f9304202ec0(0000) GS:ffff896b6ebf1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000047c0bd02000 CR3: 000000007d180005 CR4: 00000000003726f0
Call Trace:
 <TASK>
 v4l2_loopback_close+0x8b/0xf0 [v4l2loopback_dc]
 v4l2_release+0xd1/0x100 [videodev]
 __fput+0xe3/0x2a0
 __x64_sys_close+0x3d/0x80
 do_syscall_64+0x7b/0x160
 ? do_syscall_64+0x87/0x160
 ? kmem_cache_free+0x490/0x4d0
 ? __x64_sys_close+0x3d/0x80
 ? syscall_exit_to_user_mode+0x10/0x210
 ? do_syscall_64+0x87/0x160
 ? syscall_exit_to_user_mode+0x10/0x210
 ? do_syscall_64+0x87/0x160
 ? do_syscall_64+0x87/0x160
 ? do_syscall_64+0x87/0x160
 ? irqentry_exit_to_user_mode+0x16c/0x200
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f9304d16a0c
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 b0 98 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 12 99 f8 ff 8b 45 fc c9
RSP: 002b:00007ffea6ae04d0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00007ffea6ae0580 RCX: 00007f9304d16a0c
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000016
RBP: 00007ffea6ae04e0 R08: 0000000000000001 R09: 00003b8400000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007ffea6ae0518
R13: 00007ffea6ae0580 R14: 00003b8400042c08 R15: 00003b84000a04c0
 </TASK>