The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - media: uvcvideo: Mark invalid entities with id UVC_INVALID_ENTITY_ID Per UVC 1.1+ specification 3.7.2,     units and terminals must have a non-zero unique ID. ``` Each Unit and Terminal within the video function     is assigned a unique identification number, the Unit ID (UID) or Terminal ID (TID), contained in the     bUnitID or bTerminalID field of the descriptor. The value 0x00 is reserved for undefined ID, ``` If we add     a new entity with id 0 or a duplicated ID, it will be marked as UVC_INVALID_ENTITY_ID. In a previous     attempt commit 3dd075fe8ebb (media: uvcvideo: Require entities to have a non-zero unique ID), we ignored     all the invalid units, this broke a lot of non-compatible cameras. Hopefully we are more lucky this time.
    This also prevents some syzkaller reproducers from triggering warnings due to a chain of entities     referring to themselves. In one particular case, an Output Unit is connected to an Input Unit, both with     the same ID of 1. But when looking up for the source ID of the Output Unit, that same entity is found     instead of the input entity, which leads to such warnings. In another case, a backward chain was     considered finished as the source ID was 0. Later on, that entity was found, but its pads were not valid.
    Here is a sample stack trace for one of those cases. [ 20.650953] usb 1-1: new high-speed USB device     number 2 using dummy_hcd [ 20.830206] usb 1-1: Using ep0 maxpacket: 8 [ 20.833501] usb 1-1: config 0     descriptor?? [ 21.038518] usb 1-1: string descriptor 0 read error: -71 [ 21.038893] usb 1-1: Found UVC     0.00 device <unnamed> (2833:0201) [ 21.039299] uvcvideo 1-1:0.0: Entity type for entity Output 1 was not     initialized! [ 21.041583] uvcvideo 1-1:0.0: Entity type for entity Input 1 was not initialized! [     21.042218] ------------[ cut here ]------------ [ 21.042536] WARNING: CPU: 0 PID: 9 at     drivers/media/mc/mc-entity.c:1147 media_create_pad_link+0x2c4/0x2e0 [ 21.043195] Modules linked in: [     21.043535] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.11.0-rc7-00030-g3480e43aeccf #444 [     21.044101] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014 [ 21.044639]     Workqueue: usb_hub_wq hub_event [ 21.045100] RIP: 0010:media_create_pad_link+0x2c4/0x2e0 [ 21.045508]     Code: fe e8 20 01 00 00 b8 f4 ff ff ff 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 0f 0b eb     e9 0f 0b eb 0a 0f 0b eb 06 <0f> 0b eb 02 0f 0b b8 ea ff ff ff eb d4 66 2e 0f 1f 84 00 00 00 00 [     21.046801] RSP: 0018:ffffc9000004b318 EFLAGS: 00010246 [ 21.047227] RAX: ffff888004e5d458 RBX:
    0000000000000000 RCX: ffffffff818fccf1 [ 21.047719] RDX: 000000000000007b RSI: 0000000000000000 RDI:
    ffff888004313290 [ 21.048241] RBP: ffff888004313290 R08: 0001ffffffffffff R09: 0000000000000000 [     21.048701] R10: 0000000000000013 R11: 0001888004313290 R12: 0000000000000003 [ 21.049138] R13:
    ffff888004313080 R14: ffff888004313080 R15: 0000000000000000 [ 21.049648] FS: 0000000000000000(0000)     GS:ffff88803ec00000(0000) knlGS:0000000000000000 [ 21.050271] CS: 0010 DS: 0000 ES: 0000 CR0:
    0000000080050033 [ 21.050688] CR2: 0000592cc27635b0 CR3: 000000000431c000 CR4: 0000000000750ef0 [     21.051136] PKRU: 55555554 [ 21.051331] Call Trace: [ 21.051480] <TASK> [ 21.051611] ? __warn+0xc4/0x210 [     21.051861] ? media_create_pad_link+0x2c4/0x2e0 [ 21.052252] ? report_bug+0x11b/0x1a0 [ 21.052540] ?     trace_hardirqs_on+0x31/0x40 [ 21.052901] ? handle_bug+0x3d/0x70 [ 21.053197] ? exc_invalid_op+0x1a/0x50 [     21.053511] ? asm_exc_invalid_op+0x1a/0x20 [ 21.053924] ? media_create_pad_link+0x91/0x2e0 [ 21.054364] ?     media_create_pad_link+0x2c4/0x2e0 [ 21.054834] ? media_create_pad_link+0x91/0x2e0 [ 21.055131] ?
    _raw_spin_unlock+0x1e/0x40 [ 21.055441] ? __v4l2_device_register_subdev+0x202/0x210 [ 21.055837]     uvc_mc_register_entities+0x358/0x400 [ 21.056144] uvc_register_chains+0x1 ---truncated--- (CVE-2025-40016)

Note that Nessus relies on the presence of the package as reported by the vendor.

Detections

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Linux Distros Unpatched Vulnerability : CVE-2025-40016

medium Nessus Plugin ID 271664

Version 1.5

Version 1.4

Version 1.3

Version 1.2

Version 1.1

Version 1.5 Jan 16, 2026, 10:12 PM Detection (updated detection logic) Plugin Feed: 202601162212
Version 1.4 Jan 13, 2026, 2:35 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202601130235
Version 1.3 Dec 15, 2025, 9:39 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202512152139
Version 1.2 Nov 26, 2025, 1:15 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202511261315
Version 1.1 Oct 27, 2025, 3:15 PM New Plugin Feed: 202510271515