PT-2025-18861 · Linux+4 · Linux Kernel+4

Published 2023-02-08 · Updated 2026-03-14 · CVE-2023-53097

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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

Description A memory leak issue has been identified in the Linux kernel, specifically in the powerpc/iommu component. The problem occurs when using the debugfs lookup() function, which requires a subsequent call to dput() to prevent memory leaks. To simplify the process, the debugfs lookup and remove() function can be used instead, as it handles the necessary logic.

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

Exploit

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

ALSA-2025_16880

BDU:2026-02284

CVE-2023-53097

RHSA-2024:2394

RHSA-2024_2394

SUSE-SU-2025:02264-1

SUSE-SU-2025:02321-1

SUSE-SU-2025:02322-1

SUSE-SU-2025:02537-1

SUSE-SU-2025:2264-1

SUSE-SU-2025_02264-1

SUSE-SU-2025_02537-1

Affected Products

Astra Linux

Debian

Linux Kernel

Red Hat

Suse

References · 598

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53097.json · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53097 · Vendor Advisory
• https://git.kernel.org/stable/c/24c1bd1cd0d1ff821fd7d2f01a1e648c7882dfc2 · Patch
• https://security-tracker.debian.org/tracker/CVE-2023-53097 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53097 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53097 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-11-CVE-2023-53097 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53097 · Security Note
• https://bdu.fstec.ru/vul/2026-02284 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:02537-1 · Vendor Advisory
• https://git.kernel.org/stable/c/b505063910c134778202dfad9332dfcecb76bab3 · Patch
• https://ubuntu.com/security/CVE-2023-53097 · Vendor Advisory
• https://git.kernel.org/stable/c/4050498c0ae3946c223fc63e9dd7b878b76611e0 · Patch
• https://git.kernel.org/stable/c/e3a62a35f903fd8be5b44542fe3901ec45f16757 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:02321-1 · Vendor Advisory