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Severity
Medium
Analysis Summary
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.
Impact
Privilege escalation
Affected Vendors
Linux
Affected Products
- Redhat Enterprise Linux 8
- Linux kernel 4.17.7
- Linux kernel 4.17.3
- Linux kernel 4.17.2
- Linux kernel 4.17.1
- Linux kernel 4.17.4
- Linux kernel 4.17.11
- Linux kernel 4.17.10
- Linux kernel 4.17-rc2
- Linux kernel 4.17
Remediation
Currently there are no patches available for this vulnerability.