Out of Bounds Memory Access in Linux Kernel PowerPC Products

CVE-2025-38088

What is CVE-2025-38088?

This vulnerability in the Linux kernel relates to an out of bounds memory access issue within the PowerPC memtrace mmap functionality. Specifically, it allows requests for mapping regions that exceed the allocated region’s boundaries. The recent patch addresses this flaw by implementing checks that ensure any requested mapping size does not surpass the designated allocated memory, thereby enhancing the overall security and stability of Linux-based systems.

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