CVE-2025-40224
In the Linux kernel, the following vulnerability has been resolved: hwmon: (cgbc-hwmon) Add missing NULL check after devm_kzalloc() The driver allocates memory for sensor data using devm_kzalloc(), but did not check if the allocation succeeded. In case of memory allocation failure, dereferencing the NULL pointer would lead to a kernel crash. Add a NULL pointer check and return -ENOMEM to handle allocation failure properly.
Affected versions
Linux kernel versions
6.15
and later are affected. Fixed in
6.17.6,
6.18
and their respective stable series.
References
The following references provide additional information about CVE-2025-40224 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/240b82b86a091c1aa49d951d4467425420a081a0
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PatchKernel patch commithttps://git.kernel.org/stable/c/a09a5aa8bf258ddc99a22c30f17fe304b96b5350
Frequently asked questions
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What is CVE-2025-40224?
CVE-2025-40224 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.15 onward and has been patched in 6.17.6 and 6.18. CVE-2025-40224 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2025-40224?
Yes — CVE-2025-40224 has been patched. Fixed versions include 6.17.6 and 6.18. If you are running Linux kernel 6.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2025-40224 actively exploited?
No — CVE-2025-40224 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.