CVE-2025-40156
In the Linux kernel, the following vulnerability has been resolved: PM / devfreq: mtk-cci: Fix potential error pointer dereference in probe() The drv->sram_reg pointer could be set to ERR_PTR(-EPROBE_DEFER) which would lead to a error pointer dereference. Use IS_ERR_OR_NULL() to check that the pointer is valid.
Affected versions
Linux kernel versions
6.1
and later are affected. Fixed in
6.1.156,
6.6.112,
6.12.53,
6.17.3,
6.18
and their respective stable series.
References
The following references provide additional information about CVE-2025-40156 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/24d61b6e23d2c7291c528dd43a0bf76b5c05c8f0
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PatchKernel patch commithttps://git.kernel.org/stable/c/44e32104cf7e670e3d683c97b52350d8fac23322
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PatchKernel patch commithttps://git.kernel.org/stable/c/80eab6a9df7e1107dc334434dbacd05297703377
Frequently asked questions
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What is CVE-2025-40156?
CVE-2025-40156 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.1 onward and has been patched in 6.1.156, 6.6.112, 6.12.53 and others. CVE-2025-40156 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-2025-40156?
Yes — CVE-2025-40156 has been patched. Fixed versions include 6.1.156, 6.6.112, 6.12.53 and others. If you are running Linux kernel 6.1 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2025-40156 actively exploited?
No — CVE-2025-40156 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.