CVE-2026-53350 (GCVE-0-2026-53350)

Vulnerability from cvelistv5 – Published: 2026-07-01 13:32 – Updated: 2026-07-01 13:32
VLAI
Title
ASoC: wm_adsp: Fix NULL dereference when removing firmware controls
Summary
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 , < 5ee9bbe2af2f373e08d3017f9aef2f2eaf29fbc3 (git)
Affected: 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 , < 10def23b67b42679d5b1a356e1a6f3498bd188c3 (git)
Affected: 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 , < 2f1be283aa777d655525d000d16474b7e7d015ea (git)
Affected: 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 , < 12e579b889624ec54a201d98fdff975de556c731 (git)
Affected: 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 , < 6effd6f7b0ba1f5d1df702b2ef7460bcc215e9b7 (git)
Affected: 0700bc2fb94c28459f57a10d2ee2c7ef4cb70862 , < 7d3fb78b550301e43fdc60312aed733069694426 (git)
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Linux Linux Affected: 5.16
Unaffected: 0 , < 5.16 (semver)
Unaffected: 6.1.176 , ≤ 6.1.* (semver)
Unaffected: 6.6.143 , ≤ 6.6.* (semver)
Unaffected: 6.12.94 , ≤ 6.12.* (semver)
Unaffected: 6.18.36 , ≤ 6.18.* (semver)
Unaffected: 7.0.13 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: wm_adsp: Fix NULL dereference when removing firmware controls\n\nIn wm_adsp_control_remove() check that the priv pointer is not NULL\nbefore attempting to cleanup what it points to.\n\nWhen cs_dsp creates a control it calls wm_adsp_control_add_cb() so that\nwm_adsp can create its own private control data. There are two cases\nwhere private data is not created:\n\n1. The control is a SYSTEM control, so an ALSA control is not created.\n\n2. The codec driver has registered a control_add() callback that\n   hides the control, so wm_adsp_control_add() is not called.\n\nWhen cs_dsp_remove destroys its control list it calls\nwm_adsp_control_remove() for each control. But wm_adsp_control_remove()\nwas attempting to cleanup the private data pointed to by cs_ctl-\u003epriv\nwithout checking the pointer for NULL."
        }
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        "dateUpdated": "2026-07-01T13:32:27.975Z",
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        "shortName": "Linux"
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    "dateReserved": "2026-06-09T07:44:35.399Z",
    "dateUpdated": "2026-07-01T13:32:27.975Z",
    "state": "PUBLISHED"
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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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