Data Reordering Issue in Linux Kernel Affecting Loongson Products

CVE-2026-80748

What is CVE-2026-80748?

A vulnerability has been identified in the Linux Kernel related to the handling of data reordering functions within the Loongson2 MMC driver. Specifically, in the functions responsible for data reordering, incorrect usage of the for_each_sg() macro leads to potential access of invalid scatterlist entries. This misimplementation can cause unintended memory accesses, which may result in data corruption or system instability.

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