https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-09-29T18:57:10.454932+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2024-27007 CVE-2024-27007 — userfaultfd: change src_folio after ensuring it's unpinned in UFFDIO_MOVE 2026-09-29T18:57:10.456617+00:00

Affected: Linux

In the Linux kernel, the following vulnerability has been resolved:

userfaultfd: change src_folio after ensuring it's unpinned in UFFDIO_MOVE

Commit d7a08838ab74 ("mm: userfaultfd: fix unexpected change to src_folio when UFFDIO_MOVE fails") moved the src_folio->{mapping, index} changing to after clearing the page-table and ensuring that it's not pinned. This avoids failure of swapout+migration and possibly memory corruption.

However, the commit missed fixing it in the huge-page case.