CVE-2025-38395
HighCVSS 8.4Exploitation Probability (EPSS)
Low risk7th percentile - higher than 7% of all known CVEs
Summary
In the GPIO regulator in the Linux kernel, an out-of-bounds access to the drvdata::gpiods array was found. Memory was allocated for only one pointer, while config::ngpios can be greater than 1. The fix allocates sufficient memory.
Risk Assessment
Out-of-bounds access can lead to memory corruption, system crashes, or potential exploitation.
Recommendation
Update the Linux kernel to a version containing this fix to avoid buffer overflow errors.
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Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: regulator: gpio: Fix the out-of-bounds access to drvdata::gpiods drvdata::gpiods is supposed to hold an array of 'gpio_desc' pointers. But the memory is allocated for only one pointer. This will lead to out-of-bounds access later in the code if 'config::ngpios' is > 1. So fix the code to allocate enough memory to hold 'config::ngpios' of GPIO descriptors. While at it, also move the check for memory allocation failure to be below the allocation to make it more readable.