In the Linux kernel, the following vulnerability has been resolved:

ALSA: hda: cs35l41: validate and free ACPI mute object

cs35l41_get_acpi_mute_state() evaluates a _DSM method to get the ACPI
mute state and reads the first byte from the returned object.

However, the returned ACPI object is owned by the caller and is never
freed after use, so each successful query leaks the _DSM result object.

The code also assumes that the returned object is a buffer with at least
one byte. A malformed firmware response can return a different object
type or an empty buffer, and the direct ret->buffer.pointer dereference
can then access an invalid pointer.

Use the typed _DSM helper, validate that the returned buffer contains at
least one byte, and free the ACPI object after reading it.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
447106e92a0c86c332d40710436f38f64c322cd6 affected < 7fea0c89ed39a13d9a31163a74f8c62de30a4ffc
447106e92a0c86c332d40710436f38f64c322cd6 affected < 08433c71f15984ddd5f5a307cf3f0aa9b84583aa
447106e92a0c86c332d40710436f38f64c322cd6 affected < d5dfdf43259ad9d054052012095b1630e7366dcf
447106e92a0c86c332d40710436f38f64c322cd6 affected < 3b597d24dc0455ae926f1053f97c2725038fc3cd
Linux Linux affected
Version Status Constraints
6.7 affected —
0 unaffected < 6.7
6.12.101 unaffected ≤ 6.12.*
6.18.42 unaffected ≤ 6.18.*
7.1.6 unaffected ≤ 7.1.*
7.2-rc5 unaffected ≤ *

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/08433c71f15984ddd5f5a307cf3f0aa9b84583aa cve-icon
https://git.kernel.org/stable/c/3b597d24dc0455ae926f1053f97c2725038fc3cd cve-icon
https://git.kernel.org/stable/c/7fea0c89ed39a13d9a31163a74f8c62de30a4ffc cve-icon
https://git.kernel.org/stable/c/d5dfdf43259ad9d054052012095b1630e7366dcf cve-icon
History

Mon, 10 Aug 2026 17:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-401
CWE-476

Mon, 10 Aug 2026 12:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: cs35l41: validate and free ACPI mute object cs35l41_get_acpi_mute_state() evaluates a _DSM method to get the ACPI mute state and reads the first byte from the returned object. However, the returned ACPI object is owned by the caller and is never freed after use, so each successful query leaks the _DSM result object. The code also assumes that the returned object is a buffer with at least one byte. A malformed firmware response can return a different object type or an empty buffer, and the direct ret->buffer.pointer dereference can then access an invalid pointer. Use the typed _DSM helper, validate that the returned buffer contains at least one byte, and free the ACPI object after reading it.
Title ALSA: hda: cs35l41: validate and free ACPI mute object
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-10T12:03:23.079Z

Reserved: 2026-07-30T09:28:09.384Z

Link: CVE-2026-68346

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-10T16:45:03Z

Weaknesses