What’s Vulnerable › Vulnerabilities

CVE-2025-68167: gpiolib: fix invalid pointer access in debugfs

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-16 · updated 2026-10-14

Description

In the Linux kernel, the following vulnerability has been resolved: gpiolib: fix invalid pointer access in debugfs If the memory allocation in gpiolib_seq_start() fails, the s->private field remains uninitialized and is later dereferenced without checking in gpiolib_seq_stop(). Initialize s->private to NULL before calling kzalloc() and check it before dereferencing it.

Affected products

• Linux kernel: 6.9 — fixed in 6.18

How to fix

Upgrade to a fixed version: Linux kernel 6.18. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2f6115ad8864cf3f48598f26c74c7c8e5c391919
• https://git.kernel.org/stable/c/3c91c8f424d3e44c8645ab765a38773e58afb07d
• https://git.kernel.org/stable/c/70180a6031056096c93ed2f47c41803268bdd91c

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