CVE-2026-53189

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

25/06/2026

Last modified:

06/07/2026

Description

In the Linux kernel, the following vulnerability has been resolved: mm/huge_memory: update file PMD counter before folio_put() __split_huge_pmd_locked() updates the file/shmem RSS counter after dropping the PMD mapping&#39;s folio reference. If folio_put() drops the last reference, mm_counter_file() can later read freed folio state via folio_test_swapbacked(). Move the counter update before folio_put().

Impact

Vector 3.x

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

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	4.19 (including)	5.10.259 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.210 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.176 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.6.143 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.12.94 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.13 (including)	6.18.36 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.19 (including)	7.0.13 (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::::::
cpe:2.3:o:linux:linux_kernel:7.1:rc5::::::
cpe:2.3:o:linux:linux_kernel:7.1:rc6::::::

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

CVE-2026-53189

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools