Backtrace

WARNING: CPU: 13 PID: 85269 at mm/vmalloc.c:3367 vfree.part.0+0x113/0x260
Modules linked in: uinput xt_conntrack xt_MASQUERADE bridge stp llc xt_set ip_set xt_addrtype nft_compat rfcomm snd_seq_dummy snd_hrtimer overlay uhid hid_apple apple_mfi_fastcharge 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 snd_usb_audio snd_usbmidi_lib snd_ump qrtr snd_rawmidi hid_logitech_hidpp snd_sof_pci_intel_tgl snd_sof_pci_intel_cnl r8153_ecm snd_sof_intel_hda_generic cdc_ether usbnet soundwire_intel soundwire_cadence snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_intel_hda_mlink snd_sof_intel_hda snd_hda_codec_hdmi bnep 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 soundwire_bus snd_soc_sdca snd_ctl_led snd_soc_avs snd_hda_codec_realtek snd_soc_hda_codec snd_hda_codec_generic snd_hda_ext_core
 snd_hda_scodec_component snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine binfmt_misc r8152 mii iwlmvm intel_uncore_frequency intel_uncore_frequency_common dell_pc platform_profile mac80211 x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel snd_hda_intel snd_intel_dspcfg libarc4 snd_intel_sdw_acpi kvm snd_hda_codec snd_hda_core snd_hwdep snd_seq hci_uart snd_seq_device uvcvideo iwlwifi snd_pcm dell_laptop processor_thermal_device_pci_legacy btqca spi_nor irqbypass uvc btusb processor_thermal_device pwrseq_core videobuf2_vmalloc dell_wmi mei_hdcp hid_sensor_als mei_pxp btrtl hid_sensor_trigger processor_thermal_wt_hint videobuf2_memops mtd rapl iTCO_wdt btintel hid_sensor_iio_common videobuf2_v4l2 processor_thermal_rfim snd_timer dell_smbios vfat intel_pmc_bxt intel_cstate processor_thermal_rapl industrialio_triggered_buffer videobuf2_common btmtk squashfs fat intel_rapl_msr ee1004 iTCO_vendor_support dcdbas intel_uncore dell_wmi_sysman typec_thunderbolt snd pcspkr dell_wmi_ddv intel_rapl_common
 mei_me btbcm kfifo_buf spi_intel_pci dell_smm_hwmon cfg80211 dell_wmi_descriptor firmware_attributes_class wmi_bmof industrialio bluetooth thunderbolt mei processor_thermal_wt_req soundcore i2c_i801 spi_intel i2c_smbus idma64 processor_thermal_power_floor processor_thermal_mbox rfkill intel_soc_dts_iosf int3403_thermal intel_skl_int3472_tps68470 dptf_power int340x_thermal_zone tps68470_regulator clk_tps68470 intel_skl_int3472_discrete intel_pmc_core intel_skl_int3472_common pmt_telemetry int3400_thermal intel_hid pmt_class acpi_thermal_rel sparse_keymap acpi_tad acpi_pad joydev loop nfnetlink zram lz4hc_compress lz4_compress xe drm_ttm_helper gpu_sched drm_suballoc_helper drm_gpuvm drm_exec hid_sensor_hub intel_ishtp_hid hid_logitech_dj i915 i2c_algo_bit rtsx_pci_sdmmc drm_buddy ttm nvme mmc_core drm_display_helper polyval_clmulni nvme_core polyval_generic ghash_clmulni_intel intel_ish_ipc video hid_multitouch sha512_ssse3 ucsi_acpi sha256_ssse3 sha1_ssse3 typec_ucsi rtsx_pci intel_ishtp cec typec
 nvme_auth intel_vsec i2c_hid_acpi i2c_hid wmi pinctrl_tigerlake serio_raw i2c_dev fuse v4l2loopback_dc(OE) videodev mc
CPU: 13 UID: 1000 PID: 85269 Comm: VideoDevicePoll Tainted: G           OE      6.14.11-300.fc42.x86_64 #1
Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
Hardware name: Dell Inc. XPS 15 9510/, BIOS 1.38.1 04/30/2025
RIP: 0010:vfree.part.0+0x113/0x260
Code: 48 8b 7b 20 e8 ae ac fa ff 48 89 df 48 83 c4 20 5b 5d 41 5c 41 5e e9 cc 04 02 00 48 89 ee 48 c7 c7 90 0f e5 91 e8 7d 2f cb ff <0f> 0b 48 83 c4 20 5b 5d 41 5c 41 5e e9 4c ed dc 00 85 c0 0f 84 21
RSP: 0018:ffffd50c3164bce0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff8ddbc70c0000 RCX: 0000000000000027
RDX: ffff8de32f6a1948 RSI: 0000000000000001 RDI: ffff8de32f6a1940
RBP: ffffd50c33683000 R08: 0000000000000000 R09: ffffd50c3164bb88
R10: ffffffff929368e8 R11: 00000000ffffdfff R12: ffff8ddbc452eff8
R13: ffff8ddbccf0dfa0 R14: ffff8ddbc6ac0180 R15: 0000000000000000
FS:  00007fcdedc856c0(0000) GS:ffff8de32f680000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000022f40385f060 CR3: 00000001278bc004 CR4: 0000000000f72ef0
PKRU: 55555558
Call Trace:
 <TASK>
 v4l2_loopback_close+0x8b/0xf0 [v4l2loopback_dc]
 v4l2_release+0xd4/0x100 [videodev]
 __fput+0xe6/0x2a0
 __x64_sys_close+0x3c/0x80
 do_syscall_64+0x7b/0x160
 ? v4l2_ioctl+0x6a/0xb0 [videodev]
 ? __x64_sys_ioctl+0x56/0xc0
 ? syscall_exit_to_user_mode+0x10/0x210
 ? do_syscall_64+0x87/0x160
 ? __x64_sys_openat+0x62/0xa0
 ? syscall_exit_to_user_mode+0x10/0x210
 ? clear_bhb_loop+0x40/0x90
 ? clear_bhb_loop+0x40/0x90
 ? clear_bhb_loop+0x40/0x90
 ? clear_bhb_loop+0x40/0x90
 ? clear_bhb_loop+0x40/0x90
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fce8ae2e6c2
Code: 08 0f 85 81 42 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 66 2e 0f 1f 84 00 00 00 00 00 66
RSP: 002b:00007fcdedc84268 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000046 RCX: 00007fce8ae2e6c2
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000046
RBP: 00007fcdedc842a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fcdef3ef8f0 R15: 00007fcdedc843d0
 </TASK>