WARNING: CPU: 3 PID: 367 at drivers/media/v4l2-core/v4l2-dev.c:438 v4l2_open+0x106/0x160 [videodev]
Modules linked in: nvme i2c_algo_bit drm_buddy ttm nvme_core drm_display_helper polyval_clmulni ghash_clmulni_intel nvme_keyring nvme_auth hkdf video cec i2c_hid_acpi i2c_hid intel_oc_wdt wmi serio_raw i2c_dev fuse v4l2loopback_dc(OE) videodev mc
CPU: 3 UID: 0 PID: 367 Comm: v4l_id Tainted: G        W  OE       6.18.4-100.fc42.x86_64 #1 PREEMPT(lazy) 
Tainted: [W]=WARN, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
Hardware name: LENOVO 81VD/LNVNB161216, BIOS CSCN17WW 05/20/2021
RIP: 0010:v4l2_open+0x106/0x160 [videodev]
Code: 44 8b 44 24 04 48 83 c4 08 5b 44 89 c0 5d 41 5c c3 cc cc cc cc f6 83 50 04 00 00 04 0f 85 62 14 02 00 41 b8 ed ff ff ff eb c9 <0f> 0b 48 8b 83 a8 00 00 00 48 89 ef 48 8b 40 48 2e 2e 2e ff d0 f6
RSP: 0018:ffffd04c005fbad8 EFLAGS: 00010246
RAX: 0000000000000001 RBX: ffff8e79cafcf800 RCX: 0000000000710000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9a63e580
RBP: ffff8e79c8b510c0 R08: 0000000000000000 R09: ffffd04c026e4000
R10: ffffd04c026e4000 R11: 0000000000000001 R12: ffff8e79cafcf8b8
R13: ffff8e79c8b510c0 R14: ffff8e79c8b51100 R15: 0000000000000000
FS:  00007efda53053c0(0000) GS:ffff8e7b8b7a9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efda5bd52a0 CR3: 000000010a90a001 CR4: 00000000003706f0
Call Trace:
 <TASK>
 chrdev_open+0xad/0x240
 ? __pfx_chrdev_open+0x10/0x10
 do_dentry_open+0x240/0x480
 vfs_open+0x30/0x100
 do_open+0x155/0x3e0
 path_openat+0x10a/0x2a0
 ? get_page_from_freelist+0x478/0x700
 ? obj_cgroup_charge_account+0xd8/0x150
 do_filp_open+0xd8/0x180
 ? xas_find+0x83/0x1b0
 do_sys_openat2+0x88/0xe0
 __x64_sys_openat+0x61/0xa0
 do_syscall_64+0x7e/0x7f0
 ? count_memcg_events+0xd6/0x220
 ? handle_mm_fault+0x248/0x360
 ? do_user_addr_fault+0x21a/0x690
 ? irqentry_exit_to_user_mode+0x2c/0x1c0
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7efda5b7c73e
Code: 4d 89 d8 e8 d4 bc 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
RSP: 002b:00007fff8a8834a0 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fff8a883718 RCX: 00007efda5b7c73e
RDX: 0000000000080100 RSI: 00007fff8a883f07 RDI: ffffffffffffff9c
RBP: 00007fff8a8834b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff8a883718
R13: 0000000000000002 R14: 00007fff8a883560 R15: 0000563259347c18
 </TASK>