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5.5
MEDIUM CVSS 3.1
CVE-2026-53350
ASoC: wm_adsp: Fix NULL dereference when removing firmware controls
Overview
Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: wm_adsp: Fix NULL dereference when removing firmware controls In wm_adsp_control_remove() check that the priv pointer is not NULL before attempting to cleanup what it points to. When cs_dsp creates a control it calls wm_adsp_control_add_cb() so that wm_adsp can create its own private control data. There are two cases where private data is not created: 1. The control is a SYSTEM control, so an ALSA control is not created. 2. The codec driver has registered a control_add() callback that hides the control, so wm_adsp_control_add() is not called. When cs_dsp_remove destroys its control list it calls wm_adsp_control_remove() for each control. But wm_adsp_control_remove() was attempting to cleanup the private data pointed to by cs_ctl->priv without checking the pointer for NULL.

Details
INFO

Published Date :

July 1, 2026, 2:16 p.m.

Last Modified :

July 22, 2026, 7:15 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Impact
Affected Products

The following products are affected by CVE-2026-53350 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM [email protected]
Solution
Fix NULL dereference in firmware control removal by checking the private pointer.
  • Ensure private pointer is not NULL before cleanup.
  • Apply the Linux kernel patch.
  • Update the Linux kernel.
References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-53350.

URL Resource
https://git.kernel.org/stable/c/10def23b67b42679d5b1a356e1a6f3498bd188c3 Patch
https://git.kernel.org/stable/c/12e579b889624ec54a201d98fdff975de556c731 Patch
https://git.kernel.org/stable/c/2f1be283aa777d655525d000d16474b7e7d015ea Patch
https://git.kernel.org/stable/c/5ee9bbe2af2f373e08d3017f9aef2f2eaf29fbc3 Patch
https://git.kernel.org/stable/c/6effd6f7b0ba1f5d1df702b2ef7460bcc215e9b7 Patch
https://git.kernel.org/stable/c/7d3fb78b550301e43fdc60312aed733069694426 Patch
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-53350 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-53350 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-53350 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-53350 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Jul. 22, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Added CWE CWE-476
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.176 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.143 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.36 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.94 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.13 *cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.1:rc7:*:*:*:*:*:*
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/10def23b67b42679d5b1a356e1a6f3498bd188c3 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/12e579b889624ec54a201d98fdff975de556c731 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/2f1be283aa777d655525d000d16474b7e7d015ea Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/5ee9bbe2af2f373e08d3017f9aef2f2eaf29fbc3 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/6effd6f7b0ba1f5d1df702b2ef7460bcc215e9b7 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/7d3fb78b550301e43fdc60312aed733069694426 Types: Patch
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jul. 01, 2026

    Action Type Old Value New Value
    Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '0700bc2fb94c28459f57a10d2ee2c7ef4cb70862', 'lessThan': '5ee9bbe2af2f373e08d3017f9aef2f2eaf29fbc3', 'versionType': 'git'}, {'status': 'affected', 'version': '0700bc2fb94c28459f57a10d2ee2c7ef4cb70862', 'lessThan': '10def23b67b42679d5b1a356e1a6f3498bd188c3', 'versionType': 'git'}, {'status': 'affected', 'version': '0700bc2fb94c28459f57a10d2ee2c7ef4cb70862', 'lessThan': '2f1be283aa777d655525d000d16474b7e7d015ea', 'versionType': 'git'}, {'status': 'affected', 'version': '0700bc2fb94c28459f57a10d2ee2c7ef4cb70862', 'lessThan': '12e579b889624ec54a201d98fdff975de556c731', 'versionType': 'git'}, {'status': 'affected', 'version': '0700bc2fb94c28459f57a10d2ee2c7ef4cb70862', 'lessThan': '6effd6f7b0ba1f5d1df702b2ef7460bcc215e9b7', 'versionType': 'git'}, {'status': 'affected', 'version': '0700bc2fb94c28459f57a10d2ee2c7ef4cb70862', 'lessThan': '7d3fb78b550301e43fdc60312aed733069694426', 'versionType': 'git'}], 'programFiles': ['sound/soc/codecs/wm_adsp.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.16'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.16', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.1.176', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.143', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.94', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.36', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.13', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['sound/soc/codecs/wm_adsp.c'], 'defaultStatus': 'affected'}]
    Added Description In the Linux kernel, the following vulnerability has been resolved: ASoC: wm_adsp: Fix NULL dereference when removing firmware controls In wm_adsp_control_remove() check that the priv pointer is not NULL before attempting to cleanup what it points to. When cs_dsp creates a control it calls wm_adsp_control_add_cb() so that wm_adsp can create its own private control data. There are two cases where private data is not created: 1. The control is a SYSTEM control, so an ALSA control is not created. 2. The codec driver has registered a control_add() callback that hides the control, so wm_adsp_control_add() is not called. When cs_dsp_remove destroys its control list it calls wm_adsp_control_remove() for each control. But wm_adsp_control_remove() was attempting to cleanup the private data pointed to by cs_ctl->priv without checking the pointer for NULL.
    Added Reference https://git.kernel.org/stable/c/10def23b67b42679d5b1a356e1a6f3498bd188c3
    Added Reference https://git.kernel.org/stable/c/12e579b889624ec54a201d98fdff975de556c731
    Added Reference https://git.kernel.org/stable/c/2f1be283aa777d655525d000d16474b7e7d015ea
    Added Reference https://git.kernel.org/stable/c/5ee9bbe2af2f373e08d3017f9aef2f2eaf29fbc3
    Added Reference https://git.kernel.org/stable/c/6effd6f7b0ba1f5d1df702b2ef7460bcc215e9b7
    Added Reference https://git.kernel.org/stable/c/7d3fb78b550301e43fdc60312aed733069694426
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 5.5
Attack Vector
Attack Complexity
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