[BZ] WARNING: CPU: 10 PID: 13871 at drivers/media/v4l2-core

Issue

• WARNING by videodev driver appears intermittently.

## dmesg ##
[ 1398.405630] ------------[ cut here ]------------
[ 1398.405631] Unknown pixelformat 0x00000000
[ 1398.405659] WARNING: CPU: 10 PID: 13871 at drivers/media/v4l2-core/v4l2-ioctl.c:1297 v4l_fill_fmtdesc+0xe63/0x1210 [videodev]
[ 1398.405660] Modules linked in: ext4 mbcache jbd2 fuse ccm xt_CHECKSUM ipt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nft_objref nf_conntrack_tftp nf_log_ipv4 nf_log_common nft_limit nft_counter xt_LOG xt_limit nf_tables_set nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject tun nft_ct bridge stp llc nft_chain_nat_ipv6 nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 nft_chain_route_ipv6 nft_chain_nat_ipv4 nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nft_chain_route_ipv4 nf_conntrack ip6_tables ip_tables nft_compat ip_set nf_tables nfnetlink bnep sunrpc vfat fat iTCO_wdt arc4 mei_wdt iTCO_vendor_support intel_rapl intel_pmc_core sof_pci_dev snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_intel_hda snd_sof_intel_byt snd_sof_intel_ipc snd_sof
[ 1398.405676]  snd_sof_xtensa_dsp snd_soc_skl x86_pkg_temp_thermal intel_powerclamp coretemp snd_soc_skl_ipc snd_hda_ext_core snd_soc_sst_dsp snd_hda_codec_hdmi kvm_intel snd_soc_sst_ipc iwlmvm snd_soc_acpi_intel_match snd_soc_acpi kvm mac80211 irqbypass snd_soc_core snd_hda_codec_generic crct10dif_pclmul crc32_pclmul snd_compress snd_hda_intel ghash_clmulni_intel snd_hda_codec intel_cstate intel_uncore intel_rapl_perf iwlwifi pcspkr snd_hda_core uvcvideo snd_hwdep btusb wmi_bmof intel_wmi_thunderbolt snd_seq videobuf2_vmalloc btrtl videobuf2_memops videobuf2_v4l2 btbcm videobuf2_common btintel snd_seq_device rtsx_pci_ms cfg80211 bluetooth i2c_i801 memstick videodev snd_pcm joydev thinkpad_acpi ecdh_generic mei_me snd_timer i2c_designware_platform ledtrig_audio processor_thermal_device i2c_designware_core
[ 1398.405690]  idma64 mei intel_soc_dts_iosf intel_pch_thermal snd soundcore rfkill int3403_thermal int340x_thermal_zone int3400_thermal acpi_thermal_rel acpi_pad xfs libcrc32c mmc_block rtsx_pci_sdmmc mmc_core nouveau i915 mxm_wmi ttm intel_gtt i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm e1000e crc32c_intel serio_raw nvme rtsx_pci nvme_core wmi video pinctrl_cannonlake pinctrl_intel dm_mirror dm_region_hash dm_log dm_mod
[ 1398.405702] CPU: 10 PID: 13871 Comm: pipewire Kdump: loaded Not tainted 4.18.0-147.0.3.el8_1.x86_64 #1
[ 1398.405702] Hardware name: LENOVO 20QTCTO1WW/20QTCTO1WW, BIOS N2OET40W (1.27 ) 10/17/2019
[ 1398.405705] RIP: 0010:v4l_fill_fmtdesc+0xe63/0x1210 [videodev]
[ 1398.405706] Code: c6 7a 2f bb c0 e9 4f f2 ff ff 48 c7 c6 23 2b bb c0 3d 4d 54 32 31 0f 84 3d f2 ff ff 89 c6 48 c7 c7 da 37 bb c0 e8 87 2b 71 de <0f> 0b 80 7d 0c 00 0f 85 3e f2 ff ff 8b 45 2c 48 c7 c1 e8 2a bb c0
[ 1398.405706] RSP: 0018:ffffa49dc3a27cb8 EFLAGS: 00010286
[ 1398.405707] RAX: 0000000000000000 RBX: ffffa49dc3a27dc0 RCX: 0000000000000006
[ 1398.405707] RDX: 0000000000000007 RSI: 0000000000000096 RDI: ffff8fd41c496a00
[ 1398.405708] RBP: ffffa49dc3a27dc0 R08: 0000000000000536 R09: 0000000000000004
[ 1398.405708] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffffc0ce1900
[ 1398.405708] R13: ffff8fd32dbf5880 R14: 0000000000000000 R15: ffff8fd3f16b9300
[ 1398.405709] FS:  00007fcb14306b80(0000) GS:ffff8fd41c480000(0000) knlGS:0000000000000000
[ 1398.405709] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1398.405710] CR2: 000055ec9d9b7038 CR3: 00000007619c2006 CR4: 00000000003606e0
[ 1398.405710] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1398.405711] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1398.405711] Call Trace:
[ 1398.405715]  v4l_enum_fmt+0x82/0x140 [videodev]
[ 1398.405718]  __video_do_ioctl+0x139/0x300 [videodev]
[ 1398.405720]  ? filename_lookup.part.64+0xe0/0x170
[ 1398.405722]  video_usercopy+0x250/0x5e0 [videodev]
[ 1398.405724]  ? v4l_fill_fmtdesc+0x1210/0x1210 [videodev]
[ 1398.405726]  ? selinux_file_ioctl+0x161/0x200
[ 1398.405728]  v4l2_ioctl+0x41/0x50 [videodev]
[ 1398.405730]  do_vfs_ioctl+0xa4/0x630
[ 1398.405731]  ksys_ioctl+0x60/0x90
[ 1398.405732]  __x64_sys_ioctl+0x16/0x20
[ 1398.405733]  do_syscall_64+0x5b/0x1b0
[ 1398.405735]  entry_SYSCALL_64_after_hwframe+0x65/0xca
[ 1398.405736] RIP: 0033:0x7fcb139cfb2b
[ 1398.405737] Code: 0f 1e fa 48 8b 05 5d a3 2c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 2d a3 2c 00 f7 d8 64 89 01 48
[ 1398.405737] RSP: 002b:00007ffca8e2f7c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 1398.405738] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcb139cfb2b
[ 1398.405738] RDX: 000055ec9d9942b4 RSI: ffffffffc0405602 RDI: 000000000000001e
[ 1398.405738] RBP: ffffffffc0405602 R08: 0000000000000000 R09: 0000000000000000
[ 1398.405739] R10: 0000000000000000 R11: 0000000000000246 R12: 000055ec9d9942b4
[ 1398.405739] R13: 000000000000001e R14: 00007ffca8e306bc R15: 000055ec9d993de0
[ 1398.405740] ---[ end trace fc2f103d351dc6c6 ]---