CVE-2025-40156
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-11-12

Last updated on: 2025-11-12

Assigner: kernel.org

Description
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.
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Meta Information
Published
2025-11-12
Last Modified
2025-11-12
Generated
2026-06-16
AI Q&A
2025-11-13
EPSS Evaluated
2026-06-15
NVD
CVE-2025-40156
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
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Exploitability
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability is in the Linux kernel's PM / devfreq subsystem, specifically in the mtk-cci driver. The issue is that the drv->sram_reg pointer could be set to an error pointer (ERR_PTR(-EPROBE_DEFER)) but was not properly checked before use, leading to a potential error pointer dereference. The fix involves using IS_ERR_OR_NULL() to ensure the pointer is valid before dereferencing it.

Impact Analysis

If exploited, this vulnerability could cause the Linux kernel to dereference an invalid error pointer, potentially leading to kernel crashes or instability. This could affect system reliability and availability.

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