Out of Bounds Memory Access in Linux Kernel - CVE-2025-38088
Summary
CVE-2025-38088: In the Linux kernel, the following vulnerability has been resolved: powerpc/powernv/memtrace: Fix out of bounds issue in memtrace mmap memtrace mmap issue has an out of bounds issue. Affects linux versions < 6.1.147-1. Fixed in 6.1.147-1. How to fix ↓
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Background
The Linux kernel is the core component of the Linux operating system, responsible for managing hardware resources and providing essential services to applications. It supports a wide range of hardware architectures and is known for its stability, performance, and security features. However, vulnerabilities can arise, such as CVE-2025-38088, which affects the powerpc/powernv/memtrace subsystem, potentially compromising system integrity.
Vulnerability Detail
CVE-2025-38088 is a vulnerability in the Linux kernel's memtrace mmap functionality, which allows for out-of-bounds memory access. This issue arises when the requested mapping region size exceeds the allocated region size, leading to potential memory corruption or unauthorized access to sensitive data. Such vulnerabilities can be exploited by attackers to execute arbitrary code or crash the system, posing significant security risks.
How To Fix
Minimum fixed version
6.1.147-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade linuxTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, there are no specific workarounds mentioned for this vulnerability. The best course of action is to apply the patch by updating the Linux package as described in the 'how_to_fix' section.
Conclusion
CVE-2025-38088 is a critical vulnerability in the Linux kernel that can lead to severe security risks due to out-of-bounds memory access. It is essential to update the affected Linux packages to ensure system integrity and security. Utilizing tools like Vulert can help monitor and alert for such vulnerabilities in real-time.
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FAQ
CVE-2025-38088 is a vulnerability in the Linux kernel that allows for out-of-bounds memory access in the memtrace mmap functionality.
Exploitation of this vulnerability could lead to memory corruption, unauthorized access to sensitive data, or system crashes.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. Visit Vulert Scanner to check your application without requiring signup.
Yes, a patch is available. Updating the Linux package to the latest version will resolve the issue.
While there are no specific workarounds, it is crucial to prioritize updating your system to mitigate the risks associated with this vulnerability.
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