CVE-2025-40226
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Account for failed debug initialization When the SCMI debug subsystem fails to initialize, the related debug root will be missing, and the underlying descriptor will be NULL. Handle this fault condition in the SCMI debug helpers that maintain metrics counters.
Affected versions
Linux kernel versions
6.6.92,
6.12
and later are affected. Fixed in
6.6.115,
6.12.56,
6.17.6,
6.18
and their respective stable series.
References
The following references provide additional information about CVE-2025-40226 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/2290ab43b9d8eafb8046387f10a8dfa2b030ba46
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PatchKernel patch commithttps://git.kernel.org/stable/c/554c9d5c6c695aedaecfb4365c187102709397b0
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PatchKernel patch commithttps://git.kernel.org/stable/c/d719ce9f286c439795cd2beee4c91f12b84bc5a0
Frequently asked questions
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What is CVE-2025-40226?
CVE-2025-40226 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.6.92 onward and has been patched in 6.6.115, 6.12.56, 6.17.6 and others. CVE-2025-40226 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-2025-40226?
Yes — CVE-2025-40226 has been patched. Fixed versions include 6.6.115, 6.12.56, 6.17.6 and others. If you are running Linux kernel 6.6.92 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2025-40226 actively exploited?
No — CVE-2025-40226 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.