Linux Kernel up to 7.0.12 mm folio_put locking

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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Linux Kernel up to 7.0.12. The affected element is the function folio_put of the component mm. This manipulation causes locking. This vulnerability appears as CVE-2026-53189. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 7.0.12. Affected by this vulnerability is the function folio_put of the component mm. The manipulation with an unknown input leads to a locking vulnerability. The CWE definition for the vulnerability is CWE-667. The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors. As an impact it is known to affect availability. The summary by CVE is:

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'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().

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2026-53189 since 06/09/2026. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 323560 (Linux Distros Unpatched Vulnerability : CVE-2026-53189), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.94, 6.18.36 or 7.0.13 eliminates this vulnerability. Applying the patch 84b3212b166b446faea27ebebb7161405ffceef9/108963978a681c0c468d279cac2b930c27672877/459771c9cf30f378bdbd30fc65d17f7eb931bb59/ae9d4caf6f133e884cf5fcda4982c493b35e5194/6c29a8ba084e89499ca77b947e07ae817f9c16ce/5f5b604e1e6bde4e889199168ee80fe8306d06ad/ed5b030931292c94133437ac5e5ff580e498eabd/8d878059924f12c1bc24556a92ec56add74de3c8 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (323560) and CERT Bund (WID-SEC-2026-2077). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Open Source Linux Kernel

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.6

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.8
CNA Vector (Linux): 🔒

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Locking
CWE: CWE-667
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 323560
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-53189

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.10.259/5.15.210/6.1.176/6.6.143/6.12.94/6.18.36/7.0.13
Patch: 84b3212b166b446faea27ebebb7161405ffceef9/108963978a681c0c468d279cac2b930c27672877/459771c9cf30f378bdbd30fc65d17f7eb931bb59/ae9d4caf6f133e884cf5fcda4982c493b35e5194/6c29a8ba084e89499ca77b947e07ae817f9c16ce/5f5b604e1e6bde4e889199168ee80fe8306d06ad/ed5b030931292c94133437ac5e5ff580e498eabd/8d878059924f12c1bc24556a92ec56add74de3c8

Timelineinfo

06/09/2026 CVE reserved
06/25/2026 +16 days Advisory disclosed
06/25/2026 +0 days VulDB entry created
07/03/2026 +8 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-53189 (🔒)
GCVE (CVE): GCVE-0-2026-53189
GCVE (VulDB): GCVE-100-373753
CERT Bund: WID-SEC-2026-2077 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 06/25/2026 12:13
Updated: 07/03/2026 13:20
Changes: 06/25/2026 12:13 (59), 06/29/2026 06:16 (7), 06/29/2026 09:23 (2), 07/03/2026 13:20 (11)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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