Bug 2414467 (CVE-2025-40162) - CVE-2025-40162 kernel: ASoC: amd/sdw_utils: avoid NULL deref when devm_kasprintf() fails
Summary: CVE-2025-40162 kernel: ASoC: amd/sdw_utils: avoid NULL deref when devm_kaspri...
Keywords:
Status: NEW
Alias: CVE-2025-40162
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
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Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-11-12 11:01 UTC by OSIDB Bzimport
Modified: 2025-12-10 00:42 UTC (History)
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Description OSIDB Bzimport 2025-11-12 11:01:35 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ASoC: amd/sdw_utils: avoid NULL deref when devm_kasprintf() fails

devm_kasprintf() may return NULL on memory allocation failure,
but the debug message prints cpus->dai_name before checking it.
Move the dev_dbg() call after the NULL check to prevent potential
NULL pointer dereference.
Comment 1 Alexander B 2025-11-13 16:53:59 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025111227-CVE-2025-40162-210b@gregkh/T
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