Buffer Overflow Vulnerability in Linux Kernel Affects ALSA USB Audio

CVE-2025-39757

What is CVE-2025-39757?

A vulnerability in the Linux kernel's ALSA USB audio driver can allow for unchecked buffer sizes in UAC3 class segment descriptors. Failure to validate the sizes can lead to out-of-bounds (OOB) accesses when malicious firmware is introduced. This poses a potential risk for system stability and security, emphasizing the need for verification of descriptor lengths before allocation to prevent exploitation.

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