Linux Kernel up to 6.1.10 LRU Page mem_cgroup_track_foreign_dirty_slowpath null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.1.10. It has been rated as critical. Impacted is the function mem_cgroup_track_foreign_dirty_slowpath of the component LRU Page Handler. This manipulation causes null pointer dereference. This vulnerability is registered as CVE-2023-52939. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 6.1.10. Affected by this vulnerability is the function mem_cgroup_track_foreign_dirty_slowpath of the component LRU Page Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. 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: memcg: fix NULL pointer in mem_cgroup_track_foreign_dirty_slowpath() As commit 18365225f044 ("hwpoison, memcg: forcibly uncharge LRU pages"), hwpoison will forcibly uncharg a LRU hwpoisoned page, the folio_memcg could be NULl, then, mem_cgroup_track_foreign_dirty_slowpath() could occurs a NULL pointer dereference, let's do not record the foreign writebacks for folio memcg is null in mem_cgroup_track_foreign_dirty() to fix it.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2023-52939 since 08/21/2024. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 241018 (EulerOS 2.0 SP13 : kernel (EulerOS-SA-2025-1704)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.1.11 eliminates this vulnerability. Applying the patch b79ba5953f6fdc5559389ad415620bffc24f024b/ac86f547ca1002aec2ef66b9e64d03f45bbbfbb9 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 (241018) and CERT Bund (WID-SEC-2025-0649). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Dell Avamar
  • Open Source Linux Kernel
  • SolarWinds Security Event Manager
  • Dell NetWorker
  • Dell Secure Connect Gateway

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.5

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

CVSSv2info

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 241018
Nessus Name: EulerOS 2.0 SP13 : kernel (EulerOS-SA-2025-1704)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 6.1.11
Patch: b79ba5953f6fdc5559389ad415620bffc24f024b/ac86f547ca1002aec2ef66b9e64d03f45bbbfbb9

Timelineinfo

08/21/2024 🔍
03/27/2025 +218 days 🔍
03/27/2025 +0 days 🔍
12/07/2025 +255 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-52939 (🔍)
GCVE (CVE): GCVE-0-2023-52939
GCVE (VulDB): GCVE-100-301735
CERT Bund: WID-SEC-2025-0649 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 03/27/2025 18:04
Updated: 12/07/2025 02:17
Changes: 03/27/2025 18:04 (59), 07/01/2025 15:19 (2), 08/24/2025 08:55 (7), 12/07/2025 02:17 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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