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High severity7.8NVD Advisory· Published May 1, 2024· Updated Aug 4, 2026

CVE-2024-27007

CVE-2024-27007

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

8
  • Linux/Kernel7 versions
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 6 more
    • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=6.8,<6.8.8
    • cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:*
    • (no CPE)
    • (no CPE)range: 6.8
  • osv-coords
    pkg:linux/kernel
    Range: >= 6.8.0, < 6.8.8

Patches

Vulnerability mechanics

References

5

News mentions

0

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