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Vulnerability DatabaseCVE-2022-50287
CVE-2022-50287:
Linux Kernel vulnerability analysis and mitigation
Overview
CVE-2022-50287 is a vulnerability in the Linux kernel affecting the drm/i915/bios component. The vulnerability was discovered and disclosed in September 2025. It specifically involves a memory leak issue in the generate_lfp_data_ptrs function (NVD).
Technical details
The vulnerability occurs when (size != 0 || ptrs->lvds_entries != 3), where the program attempts to free() the ptrs pointer. The issue arises because ptrs is not created using kzmalloc() but is instead obtained through pointer offset operations. This implementation can lead to memory leaks or undefined behavior. The fix involves replacing the arguments of kfree() with ptrs_block (NVD).
Impact
The vulnerability can result in memory leaks in the Linux kernel's DRM (Direct Rendering Manager) subsystem, specifically affecting the Intel i915 graphics driver's BIOS handling functionality (NVD).
Mitigation and workarounds
The issue has been resolved through a kernel patch that modifies the memory management in the generate_lfp_data_ptrs function. The fix was cherry-picked from commit 7674cd0b7d28b952151c3df26bbfa7e07eb2b4ec (NVD).
Additional resources
Source: This report was generated using AI
Related Linux Kernel vulnerabilities:
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