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Vulnerability DatabaseCVE-2023-53002
CVE-2023-53002:
Linux Kernel vulnerability analysis and mitigation
Overview
CVE-2023-53002 affects the Linux kernel and involves a memory leak vulnerability in the drm/i915 component. The issue was discovered and disclosed on March 27, 2025, affecting the memory management functionality related to mmap_offset operations (NVD).
Technical details
The vulnerability stems from an imbalance in the calling of drmvmanodeallow() and drmvmanoderevoke() functions. The system calls drmvmanodeallow() once per-file every time a user calls mmapoffset, but only calls drmvmanoderevoke once per-file on each mmapoffset. When the mmapoffset is reused by the client, the per-file vmcount may remain non-zero, resulting in a memory leak in the rbtree structure (NVD).
Impact
The vulnerability results in a memory leak condition that could potentially lead to resource exhaustion over time. This affects systems running the Linux kernel with the drm/i915 graphics driver (Ubuntu).
Mitigation and workarounds
The fix involves replacing drmvmanodeallow() with drmvmanodeallowonce() to prevent the memory leak condition. This ensures proper cleanup of resources when mmapoffset is reused (NVD).
Additional resources
Source: This report was generated using AI
Related Linux Kernel vulnerabilities:
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