Additional info:
reporter:       libreport-2.9.5
WARNING: CPU: 3 PID: 24837 at drivers/media/v4l2-core/v4l2-ioctl.c:1297 v4l_enum_fmt+0xf11/0x12d0 [videodev]
Modules linked in: ccm fuse rfcomm thunderbolt nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ip_set nfnetlink ebtable_nat ebtable_broute bridge stp llc ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack libcrc32c iptable_mangle iptable_raw iptable_security ebtable_filter ebtables ip6table_filter ip6_tables arc4 cmac bnep sunrpc vfat fat intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel hid_multitouch snd_hda_codec_hdmi kvm irqbypass crct10dif_pclmul crc32_pclmul dell_wmi ghash_clmulni_intel dell_laptop dell_smbios intel_cstate iTCO_wdt mei_wdt iTCO_vendor_support intel_wmi_thunderbolt
 wmi_bmof intel_uncore intel_rapl_perf snd_soc_skl ath10k_pci dcdbas snd_soc_skl_ipc ath10k_core snd_soc_sst_ipc dell_wmi_descriptor snd_soc_sst_dsp snd_hda_codec_realtek snd_hda_ext_core snd_soc_acpi snd_soc_core snd_hda_codec_generic mac80211 snd_compress ac97_bus snd_pcm_dmaengine uvcvideo snd_hda_intel btusb videobuf2_vmalloc snd_hda_codec btrtl btbcm btintel videobuf2_memops videobuf2_v4l2 snd_hda_core videobuf2_common bluetooth snd_hwdep ath snd_seq videodev snd_seq_device cfg80211 snd_pcm media joydev snd_timer ecdh_generic snd soundcore rfkill i2c_i801 rtsx_pci_ms idma64 processor_thermal_device mei_me memstick ucsi_acpi mei typec_ucsi intel_lpss_pci intel_pch_thermal intel_lpss intel_soc_dts_iosf typec wmi pinctrl_sunrisepoint int3400_thermal intel_hid int3403_thermal acpi_thermal_rel
 pinctrl_intel int340x_thermal_zone sparse_keymap acpi_pad i915 rtsx_pci_sdmmc mmc_core i2c_algo_bit drm_kms_helper drm crc32c_intel nvme serio_raw rtsx_pci nvme_core i2c_hid video
CPU: 3 PID: 24837 Comm: cheese Not tainted 4.18.0-0.rc0.git5.1.fc29.x86_64 #1
Hardware name: Dell Inc. XPS 13 9370/0F6P3V, BIOS 1.3.3 05/17/2018
RIP: 0010:v4l_enum_fmt+0xf11/0x12d0 [videodev]
Code: c6 8e d9 97 c0 e9 fe f1 ff ff 48 c7 c6 84 cf 97 c0 3d 4d 54 32 31 0f 84 ec f1 ff ff 89 c6 48 c7 c7 3b dc 97 c0 e8 f3 49 75 d7 <0f> 0b 41 80 7c 24 0c 00 0f 85 ee f1 ff ff 41 8b 44 24 2c 49 8d 7c 
RSP: 0018:ffff9d7cc77efcd0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff8e1913296f40 RCX: 0000000000000006
RDX: 0000000000000007 RSI: 0000000000000001 RDI: ffff8e19dd7d6cc0
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000000 R12: ffff9d7cc77efdc0
R13: ffffffffc09309a0 R14: ffff8e18aee38cc0 R15: ffff8e1913296f40
FS:  00007fc2ebe22a80(0000) GS:ffff8e19dd600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc2eabb57a0 CR3: 000000040da00002 CR4: 00000000003606e0
Call Trace:
 __video_do_ioctl+0x135/0x2f0 [videodev]
 ? avc_has_extended_perms+0x240/0x660
 ? copy_overflow+0x20/0x20 [videodev]
 video_usercopy+0x24f/0x740 [videodev]
 ? selinux_file_ioctl+0x171/0x210
 v4l2_ioctl+0x45/0x50 [videodev]
 do_vfs_ioctl+0xa5/0x6e0
 ksys_ioctl+0x60/0x90
 __x64_sys_ioctl+0x16/0x20
 do_syscall_64+0x60/0x1f0
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fc2e4935d37
Code: 00 00 90 48 8b 05 89 81 2c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 59 81 2c 00 f7 d8 64 89 01 48 
RSP: 002b:00007fffedcfd428 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00005639d31b1c70 RCX: 00007fc2e4935d37
RDX: 00005639d31288a0 RSI: 00000000c0405602 RDI: 0000000000000016
RBP: 00007fc2ea8f6688 R08: 00005639d31288a0 R09: 0000000000000ba0
R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000
R13: 00005639d31b1c70 R14: 0000000000000001 R15: 00005639d31288a0
irq event stamp: 0
hardirqs last  enabled at (0): [<0000000000000000>]           (null)
hardirqs last disabled at (0): [<ffffffff980b71ca>] copy_process.part.31+0x72a/0x1df0
softirqs last  enabled at (0): [<ffffffff980b71ca>] copy_process.part.31+0x72a/0x1df0
softirqs last disabled at (0): [<0000000000000000>]           (null)

Potential duplicate: bug 1582440