Linux Kernel up to 6.12.27/6.14.5/6.15-rc4 ASoC imx-card.c graph_util_parse_link_direction uninitialized pointer

Summaryinfo

A vulnerability, which was classified as problematic, was found in Linux Kernel up to 6.12.27/6.14.5/6.15-rc4. This affects the function graph_util_parse_link_direction of the file /sound/soc/fsl/imx-card.c of the component ASoC. Executing a manipulation can lead to uninitialized pointer. The identification of this vulnerability is CVE-2025-37934. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.12.27/6.14.5/6.15-rc4. It has been declared as problematic. This vulnerability affects the function graph_util_parse_link_direction of the file /sound/soc/fsl/imx-card.c of the component ASoC. The manipulation with an unknown input leads to a uninitialized pointer vulnerability. The CWE definition for the vulnerability is CWE-824. The product accesses or uses a pointer that has not been initialized. The impact remains unknown. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: ASoC: simple-card-utils: Fix pointer check in graph_util_parse_link_direction Actually check if the passed pointers are valid, before writing to them. This also fixes a USBAN warning: UBSAN: invalid-load in ../sound/soc/fsl/imx-card.c:687:25 load of value 255 is not a valid value for type '_Bool' This is because playback_only is uninitialized and is not written to, as the playback-only property is absent.

The advisory is shared for download at git.kernel.org. This vulnerability was named CVE-2025-37934 since 04/16/2025. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 242283 (Ubuntu 24.04 LTS : Linux kernel (OEM) vulnerabilities (USN-7650-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.12.28, 6.14.6 or 6.15-rc5 eliminates this vulnerability. Applying the patch b41a49d5435e0f76da320f231b7252800e8f736f/9b5b3088c4d1752253491705919bd7d067964288/3cc393d2232ec770b5f79bf0673d67702a3536c3 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 (242283) and CERT Bund (WID-SEC-2025-1114). Once again VulDB remains the best source for vulnerability data.

Affected

• Debian Linux
• Amazon Linux 2
• Red Hat Enterprise Linux
• Ubuntu Linux
• SUSE Linux
• Oracle Linux
• SUSE openSUSE
• Dell Avamar
• Open Source Linux Kernel
• Dell NetWorker
• Dell Secure Connect Gateway

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 6.12.0
• 6.12.1
• 6.12.2
• 6.12.3
• 6.12.4
• 6.12.5
• 6.12.6
• 6.12.7
• 6.12.8
• 6.12.9
• 6.12.10
• 6.12.11
• 6.12.12
• 6.12.13
• 6.12.14
• 6.12.15
• 6.12.16
• 6.12.17
• 6.12.18
• 6.12.19
• 6.12.20
• 6.12.21
• 6.12.22
• 6.12.23
• 6.12.24
• 6.12.25
• 6.12.26
• 6.12.27
• 6.14.0
• 6.14.1
• 6.14.2
• 6.14.3
• 6.14.4
• 6.14.5
• 6.15-rc1
• 6.15-rc2
• 6.15-rc3
• 6.15-rc4

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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