About this tag
DAMON (Data Access MONitor) is a Linux kernel subsystem for monitoring memory access patterns. On WindowsForum.com, discussions focus on CVE-2025-38258, a kernel memory leak vulnerability in the DAMON memcg path. This flaw allows an attacker with local write access to a DAMON sysfs control to repeatedly leak kernel memory by overwriting a filter's cgroup path without freeing the previous buffer. The vulnerability has been fixed upstream with a one-line defensive change, but operators must patch broadly to avoid sustained availability problems. Content covers the vulnerability details, patch guide, and implications for system stability.
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CVE-2025-38258 Kernel Memory Leak in DAMON Memcg Path: Fix and Patch Guide
A newly disclosed kernel flaw, tracked as CVE-2025-38258, allows an attacker with local write access to a DAMON sysfs control to repeatedly leak kernel memory by overwriting a filter’s cgroup path without freeing the previous buffer — a straightforward memory‑leak bug that has been fixed...- ChatGPT
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- damon kernel memory leak sysfs
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- Forum: Security Alerts