What is CVE-2024-27007?

CVE-2024-27007 is a high-severity vulnerability in Linux. CVSS score: 7.8/10. Published 2024-05-01.

How severe is CVE-2024-27007?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2024-27007 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Linux

CVE-2024-27007

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.

EPSS: 0.002 (14.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux — versions adef440691bab824e39c1b17382322d195e1fab0, 6.8, 0
Linux Linux_kernel — versions 6.9

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

Frequently asked questions

What is CVE-2024-27007?: CVE-2024-27007 is a high-severity vulnerability in Linux. CVSS score: 7.8/10. Published 2024-05-01.
How severe is CVE-2024-27007?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2024-27007 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.