Linux Kernel up to 6.16.1 media dib7090p_rw_on_apb null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.16.1. This vulnerability affects the function dib7090p_rw_on_apb of the component media. Performing a manipulation results in null pointer dereference. This vulnerability is known as CVE-2025-38694. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.16.1. This affects the function dib7090p_rw_on_apb of the component media. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: media: dvb-frontends: dib7090p: fix null-ptr-deref in dib7090p_rw_on_apb() In dib7090p_rw_on_apb, msg is controlled by user. When msg[0].buf is null and msg[0].len is zero, former checks on msg[0].buf would be passed. If accessing msg[0].buf[2] without sanity check, null pointer deref would happen. We add check on msg[0].len to prevent crash. Similar issue occurs when access msg[1].buf[0] and msg[1].buf[1]. Similar commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2025-38694 since 04/16/2025. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 261589 (Linux Distros Unpatched Vulnerability : CVE-2025-38694), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.4.297, 5.10.241, 5.15.190, 6.1.149, 6.6.103, 6.12.43, 6.15.11, 6.16.2 or 6.17-rc1 eliminates this vulnerability. Applying the patch bc07cae4f36bb18d5b6a9ed835c1278ca44ec82e/ce8b7c711b9c4f040b5419729d0972db8e374324/529fd5593b721e6f4370c591f5086649ed149ff6/c33280d6bd668dbdc5a5f07887cc63a52ab4789c/09906650484a09b3a4d4b3d3065395856810becd/0bb32863426afe0badac25c28d59021f211d0f48/a0f744d6cdde81d7382e183f77a4080a39b206cd/19eb5d8e6aa1169d368a4d69aae5572950deb89d/ce5cac69b2edac3e3246fee03e8f4c2a1075238b 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 (261589) and CERT Bund (WID-SEC-2025-1976). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Open Source Linux Kernel
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux
  • Microsoft Azure
  • Dell Secure Connect Gateway
  • IBM QRadar SIEM
  • IBM Security Verify Access
  • Dell NetWorker

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 261589
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-38694

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.4.297/5.10.241/5.15.190/6.1.149/6.6.103/6.12.43/6.15.11/6.16.2/6.17-rc1
Patch: bc07cae4f36bb18d5b6a9ed835c1278ca44ec82e/ce8b7c711b9c4f040b5419729d0972db8e374324/529fd5593b721e6f4370c591f5086649ed149ff6/c33280d6bd668dbdc5a5f07887cc63a52ab4789c/09906650484a09b3a4d4b3d3065395856810becd/0bb32863426afe0badac25c28d59021f211d0f48/a0f744d6cdde81d7382e183f77a4080a39b206cd/19eb5d8e6aa1169d368a4d69aae5572950deb89d/ce5cac69b2edac3e3246fee03e8f4c2a1075238b

Timelineinfo

04/16/2025 CVE reserved
09/04/2025 +141 days Advisory disclosed
09/04/2025 +0 days VulDB entry created
02/10/2026 +159 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-38694 (🔒)
GCVE (CVE): GCVE-0-2025-38694
GCVE (VulDB): GCVE-100-322545
CERT Bund: WID-SEC-2025-1976 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 09/04/2025 18:28
Updated: 02/10/2026 06:39
Changes: 09/04/2025 18:28 (59), 09/05/2025 12:27 (7), 09/07/2025 20:30 (2), 10/08/2025 15:42 (1), 12/02/2025 08:20 (1), 01/14/2026 22:26 (1), 01/23/2026 04:34 (10), 02/10/2026 06:39 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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