Page Table Management Flaw in Linux Kernel Affects Multiple Versions
CVE-2025-38084

Currently unrated

Key Information:

Vendor: Linux
Status: Linux
Vendor: CVE Published:; 28 June 2025

What is CVE-2025-38084?

CVE-2025-38084 is a vulnerability in the Linux kernel pertaining to a flaw in page table management related to hugetlb (huge pages). The Linux kernel serves as the core interface between a computer's hardware and its processes, managing system resources and allowing different software applications to communicate. The specific vulnerability arises during the process of splitting virtual memory areas (VMAs) where the timing of page table unsharing is critical. This flaw can lead to scenarios where page tables are shared inadvertently between processes, potentially allowing unauthorized access to memory contents and posing a risk to system integrity. Exploitation of this vulnerability could lead to data leakage or corruption, and the integrity of services relying on the Linux kernel may be compromised, impacting organizations that depend on these systems.

Potential impact of CVE-2025-38084

Data Leakage: The flaw allows for the potential sharing of page table entries between processes. This could lead to unauthorized access of sensitive data stored in memory, creating avenues for data breaches and exposing sensitive information that could be exploited by malicious entities.
System Instability: By allowing racing conditions within page table management, the vulnerability could lead to inconsistent states within memory management, resulting in system crashes or unpredictable behavior in applications relying on the kernel.
Exploitation for Privilege Escalation: In scenarios where attackers gain access to a low-privileged process, they could leverage this vulnerability to escalate privileges, gaining unauthorized access to system resources or further compromising system security.

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