Vulnerability in Linux Kernel: mm/pages_alloc.c
Summary
GSD-2022-1002450: mm/pages_alloc.c: don't create ZONE_MOVABLE beyond the end of a node. Affects Kernel versions >= 2a1e274acf0b1c192face19a4be7c12d4503eaaf, < 4d6d259e5fa3647b5bc41a17276464ab8c2e1a44. No fix is published. How to fix ↓
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Background
The Linux Kernel is the core component of the Linux operating system, responsible for managing system resources and providing essential functionality. The mm/pages_alloc.c file is a part of the kernel's memory management subsystem, specifically handling the allocation of pages. This vulnerability in mm/pages_alloc.c allows the creation of a ZONE_MOVABLE beyond the end of a node, potentially leading to security issues.
Vulnerability Detail
The vulnerability in mm/pages_alloc.c arises from the creation of ZONE_MOVABLE beyond the end of a node. This can result in various security risks, although the exact impact and attack plausibility have not been proven. The vulnerability was introduced in version v2.6.23 of the Linux Kernel and has been fixed in version v4.14.276. For more technical details, please refer to the references link.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability. It is advised to apply the fix mentioned in the 'how_to_fix' section.
Conclusion
In conclusion, the vulnerability in mm/pages_alloc.c of the Linux Kernel can result in security risks. It is recommended to update the Linux Kernel to version v4.14.276 or later to mitigate this vulnerability. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The Linux Kernel is the core component of the Linux operating system, responsible for managing system resources and providing essential functionality.
mm/pages_alloc.c is a file in the Linux Kernel's memory management subsystem, specifically handling the allocation of pages.
ZONE_MOVABLE is a memory zone in the Linux Kernel that allows movable memory allocations, which can be useful for certain scenarios such as memory hotplug.
The exact impact and attack plausibility of this vulnerability have not been proven. However, it could potentially lead to security issues in systems running the affected versions of the Linux Kernel.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability. Vulert monitors and alerts in real-time for open-source vulnerabilities without requiring access to the code or installation.
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