CVE-2023-52939
kernel: mm: memcg: fix NULL pointer in mem_cgroup_track_foreign_dirty_slowpath()
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · March 27, 2025
Updated · June 30, 2026
Description
A flaw was found in the memory management subsystem in the Linux kernel. A NULL pointer dereference can be triggered due to an improper check of the memory cgroup value, resulting in a system crash and a denial of service.
Statement
This issue has been fixed in Red Hat Enterprise Linux 9.4 via RHSA-2024:2394 [1].
[1]. https://access.redhat.com/errata/RHSA-2024:2394
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference