CVE-2024-27007

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

01/05/2024

Last modified:

04/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved: userfaultfd: change src_folio after ensuring it&#39;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&#39;s not pinned. This avoids failure of swapout+migration and possibly memory corruption. However, the commit missed fixing it in the huge-page case.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

5.50

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	6.8 (including)	6.8.8 (excluding)
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::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2024-27007

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools