Linux Kernel Vulnerability in DAMON Feature by Linux Foundation

CVE-2025-38519

What is CVE-2025-38519?

A vulnerability exists in the Linux kernel's DAMON feature that may lead to a crash when handling regions of zero size. Although a fix has been implemented to address the divide by zero error in the damon_get_intervals_score() function, zero size regions are still permitted for backward compatibility. This decision could impact users relying on null regions, while additional checks are also recommended for stable kernel versions to mitigate similar risks related to access breakpoints.

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