Linux Kernel up to 6.1.156/6.6.112/6.12.53/6.17.3 media v4l2_subdev_call_state_try returned allocation of resources

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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.1.156/6.6.112/6.12.53/6.17.3. It has been rated as critical. This vulnerability affects the function v4l2_subdev_call_state_try of the component media. This manipulation of the argument returned causes allocation of resources. The identification of this vulnerability is CVE-2025-40207. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.1.156/6.6.112/6.12.53/6.17.3. It has been declared as critical. Affected by this vulnerability is the function v4l2_subdev_call_state_try of the component media. The manipulation of the argument returned with an unknown input leads to a allocation of resources vulnerability. The CWE definition for the vulnerability is CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: media: v4l2-subdev: Fix alloc failure check in v4l2_subdev_call_state_try() v4l2_subdev_call_state_try() macro allocates a subdev state with __v4l2_subdev_state_alloc(), but does not check the returned value. If __v4l2_subdev_state_alloc fails, it returns an ERR_PTR, and that would cause v4l2_subdev_call_state_try() to crash. Add proper error handling to v4l2_subdev_call_state_try().

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2025-40207 since 04/16/2025. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 276782 (Debian dla-4379 : linux-config-6.1 - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.1.157, 6.6.113, 6.12.54, 6.17.4 or 6.18-rc1 eliminates this vulnerability. Applying the patch 5b0057459cdc243ffb35617603142dcace09c711/ed30811fbed40751deb952bde534aa2632dc0bf7/94e6336dc1f06a06f5b4cd04d4a012bba34f2857/a553530b3314a0bdc98cf114cdbe204551a70a00/f37df9a0eb5e43fcfe02cbaef076123dc0d79c7e is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (276782) and CERT Bund (WID-SEC-2025-2595). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Open Source Linux Kernel
  • RESF Rocky Linux

Productinfo

Type

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Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Allocation of resources
CWE: CWE-770 / CWE-400 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 276782
Nessus Name: Debian dla-4379 : linux-config-6.1 - security update

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.1.157/6.6.113/6.12.54/6.17.4/6.18-rc1
Patch: 5b0057459cdc243ffb35617603142dcace09c711/ed30811fbed40751deb952bde534aa2632dc0bf7/94e6336dc1f06a06f5b4cd04d4a012bba34f2857/a553530b3314a0bdc98cf114cdbe204551a70a00/f37df9a0eb5e43fcfe02cbaef076123dc0d79c7e

Timelineinfo

04/16/2025 CVE reserved
11/13/2025 +211 days Advisory disclosed
11/13/2025 +0 days VulDB entry created
02/07/2026 +86 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-40207 (🔒)
GCVE (CVE): GCVE-0-2025-40207
GCVE (VulDB): GCVE-100-332269
CERT Bund: WID-SEC-2025-2595 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 11/13/2025 07:32
Updated: 02/07/2026 21:49
Changes: 11/13/2025 07:32 (60), 11/14/2025 05:54 (7), 11/28/2025 23:42 (2), 12/01/2025 15:29 (1), 12/21/2025 22:58 (1), 02/07/2026 21:49 (1)
Complete: 🔍
Cache ID: 216::103

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