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

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

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

Memory Leak

Improper Resource Release

Assertion Failure

Allocation of Resources Without Limits

Double Free

Resource Exhaustion

Weakness Enumeration

CWE-401

CWE-404

CWE-617

CWE-770

CWE-415

CWE-400

Related Identifiers

BDU:2026-04517

BDU:2026-09391

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 · 870

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53449.json · Exploit
• https://git.kernel.org/stable/c/544a552be0869231799784279d52704c4d314d33 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:3716-1 · Vendor Advisory
• https://git.kernel.org/stable/c/aede5230d154b6b237985ec9df7ebbd1dce96810 · Patch
• https://osv.dev/vulnerability/BELL-CVE-2023-53449 · Vendor Advisory
• https://git.kernel.org/stable/c/ee986d80acdef710a886be404308188ea11000c8 · Patch
• https://bdu.fstec.ru/vul/2026-09391 · Security Note
• https://osv.dev/vulnerability/CVE-2023-53449 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-53449 · Security Note
• https://ubuntu.com/security/CVE-2023-53449 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-04517 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:3761-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53449 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:03628-1 · Vendor Advisory
• https://git.kernel.org/stable/c/460e9bed82e49db1b823dcb4e421783854d86c40 · Patch