Kernel Vulnerability Affecting Amlogic SPI Driver in Linux

CVE-2026-43461

What is CVE-2026-43461?

This vulnerability in the Amlogic SPI driver within the Linux kernel involves flaws in DMA mapping error handling. Key issues include improper cleanup on DMA mapping failure, leading to resource leaks; a potential double-unmap situation that could occur when dealing with failed DMA mappings; and incorrect unmap size management which may disrupt DMA synchronization processes. These issues underscore the importance of careful handling of memory resources in driver development to prevent unintended consequences and system instability.

References