CVE-2026-68346
ALSA: hda: cs35l41: validate and free ACPI mute object
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.
INFO
Published Date :
Aug. 10, 2026, 1:20 p.m.
Last Modified :
Aug. 17, 2026, 6:17 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Use typed _DSM helper.
- Validate buffer size.
- Free ACPI object after use.
- Apply Linux kernel updates.
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-2026-68346.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68346 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-2026-68346
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-2026-68346 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68346 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.
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CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '447106e92a0c86c332d40710436f38f64c322cd6', 'lessThan': '7fea0c89ed39a13d9a31163a74f8c62de30a4ffc', 'versionType': 'git'}, {'status': 'affected', 'version': '447106e92a0c86c332d40710436f38f64c322cd6', 'lessThan': '08433c71f15984ddd5f5a307cf3f0aa9b84583aa', 'versionType': 'git'}, {'status': 'affected', 'version': '447106e92a0c86c332d40710436f38f64c322cd6', 'lessThan': 'd5dfdf43259ad9d054052012095b1630e7366dcf', 'versionType': 'git'}, {'status': 'affected', 'version': '447106e92a0c86c332d40710436f38f64c322cd6', 'lessThan': '3b597d24dc0455ae926f1053f97c2725038fc3cd', 'versionType': 'git'}], 'programFiles': ['sound/hda/codecs/side-codecs/cs35l41_hda.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.7'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.7', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc5', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['sound/hda/codecs/side-codecs/cs35l41_hda.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '447106e92a0c86c332d40710436f38f64c322cd6', 'lessThan': '7fea0c89ed39a13d9a31163a74f8c62de30a4ffc', 'versionType': 'git'}, {'status': 'affected', 'version': '447106e92a0c86c332d40710436f38f64c322cd6', 'lessThan': '08433c71f15984ddd5f5a307cf3f0aa9b84583aa', 'versionType': 'git'}, {'status': 'affected', 'version': '447106e92a0c86c332d40710436f38f64c322cd6', 'lessThan': 'd5dfdf43259ad9d054052012095b1630e7366dcf', 'versionType': 'git'}, {'status': 'affected', 'version': '447106e92a0c86c332d40710436f38f64c322cd6', 'lessThan': '3b597d24dc0455ae926f1053f97c2725038fc3cd', 'versionType': 'git'}], 'programFiles': ['sound/hda/codecs/side-codecs/cs35l41_hda.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.7'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.7', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['sound/hda/codecs/side-codecs/cs35l41_hda.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 10, 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': '447106e92a0c86c332d40710436f38f64c322cd6', 'lessThan': '7fea0c89ed39a13d9a31163a74f8c62de30a4ffc', 'versionType': 'git'}, {'status': 'affected', 'version': '447106e92a0c86c332d40710436f38f64c322cd6', 'lessThan': '08433c71f15984ddd5f5a307cf3f0aa9b84583aa', 'versionType': 'git'}, {'status': 'affected', 'version': '447106e92a0c86c332d40710436f38f64c322cd6', 'lessThan': 'd5dfdf43259ad9d054052012095b1630e7366dcf', 'versionType': 'git'}, {'status': 'affected', 'version': '447106e92a0c86c332d40710436f38f64c322cd6', 'lessThan': '3b597d24dc0455ae926f1053f97c2725038fc3cd', 'versionType': 'git'}], 'programFiles': ['sound/hda/codecs/side-codecs/cs35l41_hda.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.7'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.7', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc5', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['sound/hda/codecs/side-codecs/cs35l41_hda.c'], 'defaultStatus': 'affected'}] 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. Added Reference https://git.kernel.org/stable/c/08433c71f15984ddd5f5a307cf3f0aa9b84583aa Added Reference https://git.kernel.org/stable/c/3b597d24dc0455ae926f1053f97c2725038fc3cd Added Reference https://git.kernel.org/stable/c/7fea0c89ed39a13d9a31163a74f8c62de30a4ffc Added Reference https://git.kernel.org/stable/c/d5dfdf43259ad9d054052012095b1630e7366dcf