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CVE-2025-40338: ASoC: Intel: avs: Do not share the name pointer between components

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-09 · updated 2026-10-30

Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: Intel: avs: Do not share the name pointer between components By sharing 'name' directly, tearing down components may lead to use-after-free errors. Duplicate the name to avoid that. At the same time, update the order of operations - since commit cee28113db17 ("ASoC: dmaengine_pcm: Allow passing component name via config") the framework does not override component->name if set before invoking the initializer.

Affected products

• Linux: 5.19 — fixed in 6.18

How to fix

Upgrade to a fixed version: Linux 6.18. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0a187ea7a5b4e78b9be1f9c1507cff04f3ae4ab1
• https://git.kernel.org/stable/c/0e1440e0d8b2394adfc3f1ac0710e6419600d5c1
• https://git.kernel.org/stable/c/128bf29c992988f8b4f3829227339908fde5ec86
• https://git.kernel.org/stable/c/4dee5c1cc439b0d5ef87f741518268ad6a95b23d
• https://git.kernel.org/stable/c/a80a82f567f7c6276d96409377d4691ea30d18a2

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