Improper Handling of DMA Unmap in Linux Kernel by Linux Foundation
CVE-2026-23093

Currently unrated

Key Information:

Vendor: Linux
Status: Linux
Vendor: CVE Published:; 4 February 2026

What is CVE-2026-23093?

This vulnerability pertains to improper handling of the dma_unmap_sg() function within the Linux kernel, specifically related to the ksmbd component. The issue arises when dma_unmap_sg() is invoked with an incorrect number of segments (nents) compared to the corresponding dma_map_sg() function. This misalignment may lead to potential memory management issues, impacting system stability and security. It is crucial for users and administrators to heed these details to protect their systems from potential exploits.

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