CVE-2026-64243
ASoC: codecs: simple-mux: Fix enum control bounds check
Description
In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: simple-mux: Fix enum control bounds check simple_mux_control_put() rejects values greater than e->items, but enum control values are zero based. For the two-entry mux used by this driver, valid values are 0 and 1, so value 2 must be rejected as well. Accepting e->items can store an invalid mux state, pass it to the GPIO setter, and pass it on to the DAPM mux update path where it is used as an index into the enum text array. Use the same >= e->items check used by the ASoC enum helpers.
INFO
Published Date :
July 24, 2026, 4:16 p.m.
Last Modified :
Aug. 17, 2026, 7:26 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
- Update the Linux kernel to the latest version.
- Apply the ASoC: codecs: simple-mux patch.
- Verify the fix by testing enum control functionality.
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-2026-64243.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-64243 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-2026-64243
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-2026-64243 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-64243 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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Initial Analysis by [email protected]
Aug. 17, 2026
Action Type Old Value New Value Added CWE CWE-129 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) 6.13 up to (excluding) 6.18.35 *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) 6.7 up to (excluding) 6.12.93 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.210 *cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.12 Added Reference Type kernel.org: https://git.kernel.org/stable/c/05ef77f02607a3dc5d7f9762cb990f76843315d4 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/164dcbec9632ca93ae313e6da6e4e05584fa0f02 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/2ff3ac6f7664fe5639cad01712ac5e021fa7939c Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/5fe860af8630cf7c78523cbd68e5a234743585aa Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/6fb653b62f169f6050fac45b56bf21ad097e19f6 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/d8cc3e747b002a8b965c529de79c0654675b9a1a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f63ad68e18d774a5d15cd7e405ead63f6b322679 Types: Patch -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 27, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 24, 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': '342fbb7578d1741ff646d7b08e14e8753267b9fa', 'lessThan': '6fb653b62f169f6050fac45b56bf21ad097e19f6', 'versionType': 'git'}, {'status': 'affected', 'version': '342fbb7578d1741ff646d7b08e14e8753267b9fa', 'lessThan': 'd8cc3e747b002a8b965c529de79c0654675b9a1a', 'versionType': 'git'}, {'status': 'affected', 'version': '342fbb7578d1741ff646d7b08e14e8753267b9fa', 'lessThan': '5fe860af8630cf7c78523cbd68e5a234743585aa', 'versionType': 'git'}, {'status': 'affected', 'version': '342fbb7578d1741ff646d7b08e14e8753267b9fa', 'lessThan': '2ff3ac6f7664fe5639cad01712ac5e021fa7939c', 'versionType': 'git'}, {'status': 'affected', 'version': '342fbb7578d1741ff646d7b08e14e8753267b9fa', 'lessThan': '164dcbec9632ca93ae313e6da6e4e05584fa0f02', 'versionType': 'git'}, {'status': 'affected', 'version': '342fbb7578d1741ff646d7b08e14e8753267b9fa', 'lessThan': '05ef77f02607a3dc5d7f9762cb990f76843315d4', 'versionType': 'git'}, {'status': 'affected', 'version': '342fbb7578d1741ff646d7b08e14e8753267b9fa', 'lessThan': 'f63ad68e18d774a5d15cd7e405ead63f6b322679', 'versionType': 'git'}], 'programFiles': ['sound/soc/codecs/simple-mux.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.11'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.11', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.15.210', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'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': '6.12.93', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.35', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.12', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['sound/soc/codecs/simple-mux.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: simple-mux: Fix enum control bounds check simple_mux_control_put() rejects values greater than e->items, but enum control values are zero based. For the two-entry mux used by this driver, valid values are 0 and 1, so value 2 must be rejected as well. Accepting e->items can store an invalid mux state, pass it to the GPIO setter, and pass it on to the DAPM mux update path where it is used as an index into the enum text array. Use the same >= e->items check used by the ASoC enum helpers. Added Reference https://git.kernel.org/stable/c/05ef77f02607a3dc5d7f9762cb990f76843315d4 Added Reference https://git.kernel.org/stable/c/164dcbec9632ca93ae313e6da6e4e05584fa0f02 Added Reference https://git.kernel.org/stable/c/2ff3ac6f7664fe5639cad01712ac5e021fa7939c Added Reference https://git.kernel.org/stable/c/5fe860af8630cf7c78523cbd68e5a234743585aa Added Reference https://git.kernel.org/stable/c/6fb653b62f169f6050fac45b56bf21ad097e19f6 Added Reference https://git.kernel.org/stable/c/d8cc3e747b002a8b965c529de79c0654675b9a1a Added Reference https://git.kernel.org/stable/c/f63ad68e18d774a5d15cd7e405ead63f6b322679