Linux Kernel Vulnerability Impacts Memory Management Functionality

CVE-2025-38207

What is CVE-2025-38207?

A vulnerability in the Linux kernel's memory management can lead to improper handling of user space probes (uprobes) when expanding virtual memory areas (VMAs). This bug arises during the remapping process where the page table entries (PTEs) for uprobe pages can be inadvertently overwritten. Specifically, during the remapping steps, unnecessary adjustments can cause orphaned uprobe PTEs, potentially leading to memory inconsistencies and exploitation opportunities. This issue was identified with specific conditions involving memory mapping operations and necessitates immediate patches to stabilize kernel functionality.

References