User Space Data Validation Flaw in Linux Kernel cs40l50-vibra Driver

CVE-2026-80575

What is CVE-2026-80575?

The cs40l50-vibra driver within the Linux kernel has a critical input validation issue that allows for the unsafe copying of user-defined data. When handling custom data from user space, the driver does not enforce length checks, enabling potential memory manipulation and buffer overflows. An attacker can exploit this vulnerability by providing manipulated input, leading to dereferencing of zero-sized or incorrectly allocated memory, which can compromise system integrity. Proper measures, such as enforcing strict length validation and appropriate type handling, are essential to mitigate these risks.

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