PT-2025-52984 · Linux · Linux Kernel

Published 2023-07-22 · Updated 2026-03-24 · CVE-2023-54027

Positive Technologies (AI Summary)

CVSS v2.0

4.3

Medium

Base vector

AV:A/AC:H/Au:S/C:N/I:N/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 IIO core that can lead to an invalid memory access when a device lacks a parent. A commit intended to improve label retrieval during device registration inadvertently introduced this issue. Specifically, when creating a new entry in configfs with the IIO dummy driver, a NULL pointer dereference occurs if the device has no parent. This results in a kernel BUG. The issue arises from accessing a NULL pointer within the iio device register function during the device registration process.

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

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2026-01138

CVE-2023-54027

SUSE-SU-2026:0278-1

SUSE-SU-2026:0281-1

SUSE-SU-2026:0293-1

SUSE-SU-2026:0315-1

SUSE-SU-2026:20477-1

SUSE-SU-2026:20498-1

SUSE-SU-2026:20845-1

SUSE-SU-2026:20876-1

Affected Products

Linux Kernel

References · 1459

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54027.json · Exploit
• https://bdu.fstec.ru/vul/2026-01138 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-54027 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-54027 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-54027 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20845-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0281-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-54027 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:20876-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0293-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-54027 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-54027 · Security Note
• https://osv.dev/vulnerability/CVE-2023-54027 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20498-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20477-1 · Vendor Advisory