Entreprise française de cybersécurité depuis 2004
☎ 03 60 47 09 81 - info@securiteinfo.com
☎ 03 60 47 09 81 - info@securiteinfo.com
In the Linux kernel, the following vulnerability has been resolved:userfaultfd: change src_folio after ensuring it's unpinned in UFFDIO_MOVECommit d7a08838ab74 ("mm: userfaultfd: fix unexpected change to src_foliowhen UFFDIO_MOVE fails") moved the src_folio->{mapping, index} changing toafter clearing the page-table and ensuring that it's not pinned. Thisavoids failure of swapout+migration and possibly memory corruption.However, the commit missed fixing it in the huge-page case.
No PoCs from references.
- https://github.com/fkie-cad/nvd-json-data-feeds