PT-2025-40156 · Linux+2 · Linux Kernel+2

Published 2023-02-09 · Updated 2025-10-23 · CVE-2023-53449

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 was identified in the dasd eckd init() function within the s390/dasd module of the Linux kernel. The dasd reserve req structure is allocated before dasd vol info req, and requires freeing before an error return, similar to other cases within the function. This issue could lead to a memory leak.

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

Exploit

Improper Resource Release

Allocation of Resources Without Limits

Resource Exhaustion

Memory Leak

Weakness Enumeration

CWE-404

CWE-770

CWE-400

CWE-401

Related Identifiers

BDU:2026-04517

CVE-2023-53449

SUSE-SU-2025:03615-1

SUSE-SU-2025:03628-1

SUSE-SU-2025:3716-1

SUSE-SU-2025:3761-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 865

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53449.json · Exploit
• https://bdu.fstec.ru/vul/2026-04517 · Security Note
• https://git.kernel.org/stable/c/aede5230d154b6b237985ec9df7ebbd1dce96810 · Patch
• https://git.kernel.org/stable/c/460e9bed82e49db1b823dcb4e421783854d86c40 · Patch
• https://security-tracker.debian.org/tracker/CVE-2023-53449 · Vendor Advisory
• https://git.kernel.org/stable/c/544a552be0869231799784279d52704c4d314d33 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:03628-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53449 · Security Note
• https://ubuntu.com/security/CVE-2023-53449 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:3761-1 · Vendor Advisory
• https://git.kernel.org/stable/c/a50e28d433acf22258f9f34831057387f04ef074 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:03615-1 · Vendor Advisory
• https://git.kernel.org/stable/c/ef3a7ffc0a6f833578bc8d1dcb79d0633c7e4ec3 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53449 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53449 · Vendor Advisory