PT-2025-49721 · Linux+2 · Linux Kernel+2

CVE-2023-53830 · Published 2023-03-31 · Updated 2026-07-01

Positive Technologies (AI Summary)

CVSS v2.0

4.6

Medium

Base vector

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

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

Description A memory leak exists in the Linux kernel related to the think-lmi module when displaying current settings. Specifically, when retrieving an item string using the tlmi setting() function, the returned string is not always freed using kfree(), leading to a memory leak in the current value show() function when malformed item strings are encountered. The issue is resolved by eliminating the early return responsible for the leak.

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

Exploit

Missing Release of Resource after Effective Lifetime

Memory Leak

Weakness Enumeration

CWE-772

CWE-401

Related Identifiers

BDU:2026-10223

CVE-2023-53830

SUSE-SU-2026:0263-1

SUSE-SU-2026:0317-1

SUSE-SU-2026:0411-1

SUSE-SU-2026:0617-1

Affected Products

Linux Kernel

Red Os

Think-Lmi

References · 981

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53830.json · Exploit
• https://osv.dev/vulnerability/SUSE-SU-2026:0317-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0617-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53830 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-53830 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53830 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0263-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-53830 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0411-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53830 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53830 · Security Note
• https://osv.dev/vulnerability/BELL-CVE-2023-53830 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-10223 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-53830 · Security Note
• https://suse.com/security/cve/CVE-2025-40331 · Note