Bug 2414516 (CVE-2025-40132)

Summary: CVE-2025-40132 kernel: ASoC: Intel: sof_sdw: Prevent jump to NULL add_sidecar callback
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedKeywords: Security
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OS: Linux   
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Description OSIDB Bzimport 2025-11-12 11:04:56 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ASoC: Intel: sof_sdw: Prevent jump to NULL add_sidecar callback

In create_sdw_dailink() check that sof_end->codec_info->add_sidecar
is not NULL before calling it.

The original code assumed that if include_sidecar is true, the codec
on that link has an add_sidecar callback. But there could be other
codecs on the same link that do not have an add_sidecar callback.
Comment 1 Alexander B 2025-11-13 13:08:57 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025111254-CVE-2025-40132-9d00@gregkh/T