CVE-2026-64129

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

19/07/2026

Last modified:

13/08/2026

Description

In the Linux kernel, the following vulnerability has been resolved: mm/migrate_device: fix spinlock leak in migrate_vma_insert_huge_pmd_page When check_stable_address_space() fails after the PMD spinlock has been acquired via pmd_lock(), the code jumps directly to the abort label, bypassing the spin_unlock() call in unlock_abort. This causes the PMD spinlock to be permanently held, leading to a deadlock. Change the goto target from abort to unlock_abort to ensure the spinlock is always released on this error path.

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::::::::	6.19 (including)	7.0.11 (excluding)
cpe:2.3:o:linux:linux_kernel:7.1:rc1::::::
cpe:2.3:o:linux:linux_kernel:7.1:rc2::::::
cpe:2.3:o:linux:linux_kernel:7.1:rc3::::::
cpe:2.3:o:linux:linux_kernel:7.1:rc4::::::

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

CVE-2026-64129

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools