ASoC: wm_adsp: Fix NULL dereference when removing firmware controls

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-53350
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-01 14:16:43 UTC
Updated2026-07-22 19:15:04 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.001610000 probability, percentile 0.056160000 (date 2026-07-14)

Problem Types: CWE-476

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 5ee9bbe2af2f373e08d3017f9aef2f2eaf29fbc3 git Not specified
CNA Linux Linux affected 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 10def23b67b42679d5b1a356e1a6f3498bd188c3 git Not specified
CNA Linux Linux affected 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 2f1be283aa777d655525d000d16474b7e7d015ea git Not specified
CNA Linux Linux affected 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 12e579b889624ec54a201d98fdff975de556c731 git Not specified
CNA Linux Linux affected 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 6effd6f7b0ba1f5d1df702b2ef7460bcc215e9b7 git Not specified
CNA Linux Linux affected 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 7d3fb78b550301e43fdc60312aed733069694426 git Not specified
CNA Linux Linux affected 5.16 Not specified
CNA Linux Linux unaffected 5.16 semver Not specified
CNA Linux Linux unaffected 6.1.176 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.143 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.94 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.36 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.13 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/10def23b67b42679d5b1a356e1a6f3498bd188c3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/6effd6f7b0ba1f5d1df702b2ef7460bcc215e9b7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/2f1be283aa777d655525d000d16474b7e7d015ea 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/5ee9bbe2af2f373e08d3017f9aef2f2eaf29fbc3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/12e579b889624ec54a201d98fdff975de556c731 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/7d3fb78b550301e43fdc60312aed733069694426 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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