cve/2019/CVE-2019-12817.md

CVE-2019-12817

Description

arch/powerpc/mm/mmu_context_book3s64.c in the Linux kernel before 5.1.15 for powerpc has a bug where unrelated processes may be able to read/write to one another's virtual memory under certain conditions via an mmap above 512 TB. Only a subset of powerpc systems are affected.

POC

Reference

• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.15
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ca72d88378b2f2444d3ec145dd442d449d3fefbc

Github

No PoCs found on GitHub currently.