Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2025-38543
CVE-2025-38543:
Linux Kernel vulnerability analysis and mitigation
Overview
CVE-2025-38543 is a vulnerability in the Linux kernel related to the DRM (Direct Rendering Manager) Tegra driver, specifically in the NVDEC component. The vulnerability was discovered and published to the CVE List on August 16, 2025. The issue involves improper error checking in the dmaalloccoherent function within the drm/tegra: nvdec driver (NVD).
Technical details
The vulnerability stems from an improper NULL return value check with dmaalloccoherent in the NVDEC driver. This issue is similar to a previous fix implemented for vic.c in the 'drm/tegra: vic: Fix DMA API misuse' patch. The fix involves implementing proper error checking for memory allocation failures (NVD).
Impact
The vulnerability affects the Linux kernel's DRM Tegra driver subsystem. When exploited, it could potentially lead to memory-related issues due to improper handling of allocation failures (NVD).
Mitigation and workarounds
The vulnerability has been addressed through patches in the Linux kernel. The fix involves implementing proper error checking for the dmaalloccoherent function in the NVDEC driver. Multiple kernel commits have been created to address this issue, as evidenced by the references in the CVE entry (NVD).
Additional resources
Source: This report was generated using AI
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