CVE-2026-64243
Published: July 29, 2026Last modified: July 29, 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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.1 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.177-r0) |
| 25 LTS | linux-lts | Fixed (6.12.95-r0) | |
| Stream | linux-lts | Fixed (6.18.35-r1) |
References
- https://git.kernel.org/stable/c/05ef77f02607a3dc5d7f9762cb990f76843315d4
- https://git.kernel.org/stable/c/164dcbec9632ca93ae313e6da6e4e05584fa0f02
- https://git.kernel.org/stable/c/2ff3ac6f7664fe5639cad01712ac5e021fa7939c
- https://git.kernel.org/stable/c/5fe860af8630cf7c78523cbd68e5a234743585aa
- https://git.kernel.org/stable/c/6fb653b62f169f6050fac45b56bf21ad097e19f6
- https://git.kernel.org/stable/c/d8cc3e747b002a8b965c529de79c0654675b9a1a
- https://git.kernel.org/stable/c/f63ad68e18d774a5d15cd7e405ead63f6b322679