Backtrace

WARNING: CPU: 2 PID: 33625 at mm/vmalloc.c:3375 vfree.part.0+0x113/0x260
Modules linked in: v4l2loopback_dc(OE) wireguard curve25519_x86_64 libcurve25519_generic ip6_udp_tunnel udp_tunnel uinput rfcomm snd_seq_dummy snd_hrtimer evdi(OE) xt_MASQUERADE xt_mark nft_compat tun xt_socket nft_socket nf_socket_ipv4 nf_socket_ipv6 nft_tproxy nf_tproxy_ipv6 nf_tproxy_ipv4 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 vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) qrtr bnep snd_sof_pci_intel_cnl 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 iwlmvm snd_sof_utils snd_soc_acpi_intel_match snd_soc_acpi_intel_sdca_quirks soundwire_generic_allocation snd_soc_acpi crc8 soundwire_bus snd_soc_sdca snd_hda_codec_hdmi snd_soc_avs mac80211 snd_soc_hda_codec
 snd_ctl_led snd_hda_ext_core snd_hda_codec_realtek snd_soc_core snd_hda_codec_generic snd_hda_scodec_component snd_compress ac97_bus snd_pcm_dmaengine snd_hda_intel btusb snd_intel_dspcfg intel_uncore_frequency snd_intel_sdw_acpi libarc4 intel_uncore_frequency_common btrtl snd_usb_audio uvcvideo btintel snd_hda_codec spi_nor btbcm uvc videobuf2_vmalloc iTCO_wdt cdc_mbim btmtk videobuf2_memops intel_pmc_bxt intel_tcc_cooling mtd mei_hdcp mei_pxp cdc_wdm snd_hda_core iTCO_vendor_support snd_usbmidi_lib videobuf2_v4l2 x86_pkg_temp_thermal intel_rapl_msr bluetooth videobuf2_common intel_powerclamp iwlwifi cdc_ncm coretemp videodev snd_hwdep snd_seq cdc_ether snd_ump uas snd_rawmidi usbnet rapl mc usb_storage mii binfmt_misc intel_cstate snd_seq_device cfg80211 intel_uncore intel_wmi_thunderbolt snd_pcm lenovo_wmi_hotkey_utilities processor_thermal_device_pci_legacy pcspkr wmi_bmof processor_thermal_device mei_me spi_intel_pci snd_timer i2c_i801 spi_intel processor_thermal_wt_hint i2c_smbus
 processor_thermal_rfim mei processor_thermal_rapl snd idma64 intel_rapl_common soundcore processor_thermal_wt_req processor_thermal_power_floor ideapad_laptop processor_thermal_mbox intel_pch_thermal intel_soc_dts_iosf sparse_keymap platform_profile int3403_thermal rfkill intel_pmc_core int340x_thermal_zone pmt_telemetry int3400_thermal pmt_class acpi_thermal_rel acpi_tad intel_vsec acpi_pad joydev loop zram lz4hc_compress lz4_compress i915 nvme i2c_algo_bit polyval_clmulni nvme_core polyval_generic drm_buddy ghash_clmulni_intel sha512_ssse3 ttm hid_multitouch video sha256_ssse3 nvme_keyring drm_display_helper sha1_ssse3 nvme_auth i2c_hid_acpi cec i2c_hid wmi pinctrl_cannonlake serio_raw hid_jabra sunrpc iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi fuse i2c_dev nfnetlink
CPU: 2 UID: 1000 PID: 33625 Comm: VideoDevicePoll Tainted: G        W  OE       6.15.9-201.fc42.x86_64 #1 PREEMPT(lazy) 
Tainted: [W]=WARN, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
Hardware name: LENOVO 82BS/LNVNB161216, BIOS DXCN45WW 06/13/2023
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 c8 d7 a5 84 e8 6d 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:ffffd18745b6fca0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88a065873000 RCX: 0000000000000027
RDX: ffff88a48e51cb88 RSI: 0000000000000001 RDI: ffff88a48e51cb80
RBP: ffffd18761de9000 R08: 0000000000000000 R09: ffffd18745b6fb48
R10: ffffffff8553bc88 R11: 00000000ffffdfff R12: ffff88a07bf49958
R13: ffff88a04a5753a0 R14: ffff88a05926eb40 R15: 0000000000000000
FS:  00007fe0d09fe6c0(0000) GS:ffff88a508170000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000022e405e1b000 CR3: 000000041755d004 CR4: 00000000003706f0
Call Trace:
 <TASK>
 v4l2_loopback_close+0x8b/0xf0 [v4l2loopback_dc]
 v4l2_release+0xd4/0x100 [videodev]
 __fput+0xe6/0x2a0
 __x64_sys_close+0x3d/0x80
 do_syscall_64+0x7b/0x160
 ? do_syscall_64+0x87/0x160
 ? do_syscall_64+0x87/0x160
 ? rseq_get_rseq_cs+0x19/0x220
 ? alloc_fd+0xbd/0x110
 ? rseq_ip_fixup+0x8c/0x1d0
 ? do_sys_openat2+0xa2/0xe0
 ? switch_fpu_return+0x4e/0xd0
 ? syscall_exit_to_user_mode+0x1d5/0x210
 ? clear_bhb_loop+0x50/0xa0
 ? clear_bhb_loop+0x50/0xa0
 ? clear_bhb_loop+0x50/0xa0
 ? clear_bhb_loop+0x50/0xa0
 ? clear_bhb_loop+0x50/0xa0
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fe15b3079cc
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 f0 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 52 99 f8 ff 8b 45 fc c9
RSP: 002b:00007fe0d09fd3f0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 000000000000002c RCX: 00007fe15b3079cc
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000002c
RBP: 00007fe0d09fd400 R08: 0000000000000000 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001
R13: 0000000000000002 R14: 00007fe0d1ff45f0 R15: 00007fe0d09fd4f0
 </TASK>