CVE-2026-89961

CVE-2026-89961 affects the Linux kernel 's powerpc/mm subsystem, specifically the vmemmap_populate_compound_pages() function. The root cause is a mismatch in how addr_pfn is advanced relative to the loop's addr variable in vmemmap address space. Because each PAGE_SIZE step in addr spans PAGE_SIZE...

Linux Distros Unpatched Vulnerability : CVE-2026-89961

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - powerpc/mm: fix wrong addrpfn tracking in compound vmemmap population vmemmappopulatecompoundpages uses addrpfn to determine the PFN offset within a compound pa...