CVE-2026-64243

ASoC: codecs: simple-mux: Fix enum control bounds check

State: Published
Severity: 7.1 High
Published: Jul 24, 2026
Updated: Oct 19, 2026
Reserved: Jul 19, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	7.1 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H	Linux

Weaknesses

CWE-125 Out-of-bounds Read

Affected Products

Product	Versions
LinuxLinux	342fbb7578d1741ff646d7b08e14e8753267b9fa to before 6fb653b62f169f6050fac45b56bf21ad097e19f6Affected 342fbb7578d1741ff646d7b08e14e8753267b9fa to before d8cc3e747b002a8b965c529de79c0654675b9a1aAffected 342fbb7578d1741ff646d7b08e14e8753267b9fa to before 5fe860af8630cf7c78523cbd68e5a234743585aaAffected 342fbb7578d1741ff646d7b08e14e8753267b9fa to before 2ff3ac6f7664fe5639cad01712ac5e021fa7939cAffected 342fbb7578d1741ff646d7b08e14e8753267b9fa to before 164dcbec9632ca93ae313e6da6e4e05584fa0f02Affected 342fbb7578d1741ff646d7b08e14e8753267b9fa to before 05ef77f02607a3dc5d7f9762cb990f76843315d4Affected 342fbb7578d1741ff646d7b08e14e8753267b9fa to before f63ad68e18d774a5d15cd7e405ead63f6b322679Affected
LinuxLinux	5.11Affected before 5.11Not affected 5.15.210 through 5.15.Not affected 6.1.176 through 6.1.Not affected 6.6.143 through 6.6.Not affected 6.12.93 through 6.12.Not affected 6.18.35 through 6.18.Not affected 7.0.12 through 7.0.Not affected 7.1 and laterNot affected

Product

Versions

LinuxLinux

342fbb7578d1741ff646d7b08e14e8753267b9fa to before 6fb653b62f169f6050fac45b56bf21ad097e19f6Affected
342fbb7578d1741ff646d7b08e14e8753267b9fa to before d8cc3e747b002a8b965c529de79c0654675b9a1aAffected
342fbb7578d1741ff646d7b08e14e8753267b9fa to before 5fe860af8630cf7c78523cbd68e5a234743585aaAffected
342fbb7578d1741ff646d7b08e14e8753267b9fa to before 2ff3ac6f7664fe5639cad01712ac5e021fa7939cAffected
342fbb7578d1741ff646d7b08e14e8753267b9fa to before 164dcbec9632ca93ae313e6da6e4e05584fa0f02Affected
342fbb7578d1741ff646d7b08e14e8753267b9fa to before 05ef77f02607a3dc5d7f9762cb990f76843315d4Affected
342fbb7578d1741ff646d7b08e14e8753267b9fa to before f63ad68e18d774a5d15cd7e405ead63f6b322679Affected

LinuxLinux

5.11Affected
before 5.11Not affected
5.15.210 through 5.15.*Not affected
6.1.176 through 6.1.*Not affected
6.6.143 through 6.6.*Not affected
6.12.93 through 6.12.*Not affected
6.18.35 through 6.18.*Not affected
7.0.12 through 7.0.*Not affected
7.1 and laterNot affected

References

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