CVE-2025-39907

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.1.82

Description The Linux kernel mtd subsystem, specifically the STM32 FMC2 NAND controller, contained a flaw where overlapping mappings could occur on the ECC buffer. This issue was addressed by utilizing a contiguous non-cacheable buffer to prevent these overlaps. The issue manifested as DMA-API errors and warnings during operation, potentially leading to system instability.

Recommendations Update to Linux kernel version 6.1.82 or later.