PT-2025-40697 · Linux+2 · Linux Kernel+2

Published 2023-08-04 · Updated 2025-11-28 · CVE-2023-53555

Positive Technologies (AI Summary)

CVSS v2.0

6.0

Medium

Base vector

AV:L/AC:H/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A flaw exists in the Linux kernel’s memory management subsystem, specifically within the DAMON (Data Access MONitor) functionality. The damos new filter() function does not initialize the list field of newly allocated filter objects. This lack of initialization, coupled with the absence of initialization in the DAMON sysfs interface and DAMON RECLAIM, can lead to accessing uninitialized memory. Adding multiple DAMOS filters through the DAMON sysfs interface can trigger a NULL pointer dereference.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Use of Uninitialized Resource

NULL Pointer Dereference

Weakness Enumeration

CWE-908

CWE-476

Related Identifiers

ALSA-2025_12746

ALSA-2025_12752

ALSA-2025_12753

ALSA-2025_16880

BDU:2026-04413

CVE-2023-53555

RHSA-2025:6966

RHSA-2025_6966

SUSE-SU-2025:21040-1

SUSE-SU-2025:21052-1

SUSE-SU-2025:21056-1

SUSE-SU-2025:21064-1

SUSE-SU-2025:4057-1

SUSE-SU-2025:4128-1

SUSE-SU-2025:4132-1

SUSE-SU-2025:4140-1

SUSE-SU-2025:4141-1

SUSE-SU-2025:4301-1

Affected Products

Linux Kernel

Red Hat

Suse

References · 1013

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53555.json · Exploit
• https://bdu.fstec.ru/vul/2026-04413 · Security Note
• https://osv.dev/vulnerability/CVE-2023-53555 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53555 · Security Note
• https://git.kernel.org/stable/c/da7beebb49c643cd03c54447ed66595936a7a1ce · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:4301-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4128-1 · Vendor Advisory
• https://git.kernel.org/stable/c/5f1fc67f2cb8d3035d3acd273b48b97835af8afd · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:4141-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:21052-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4057-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53555 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2023-53555 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53555 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4140-1 · Vendor Advisory