PT-2025-54160 · Linux · Linux Kernel

Published 2023-07-19 · Updated 2026-03-24 · CVE-2023-54314

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 flaw exists in the Linux kernel’s af9005 i2c xfer function. The function processes data controlled by the user through the msg variable. A null pointer dereference can occur if msg[i].buf is null and msg[i].len is zero, leading to a potential crash. The issue arises because of insufficient checks on msg[i].buf before accessing it. The fix adds a check on msg[i].len to prevent the crash.

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:2026-01174

CVE-2023-54314

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 · 1473

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54314.json · Exploit
• https://cve.org/CVERecord?id=CVE-2023-54314 · Security Note
• https://bdu.fstec.ru/vul/2026-01174 · Security Note
• https://ubuntu.com/security/CVE-2023-54314 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-54314 · 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://osv.dev/vulnerability/SUSE-SU-2026:20876-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0293-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20498-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-54314 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20477-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-54314 · Security Note
• https://osv.dev/vulnerability/CVE-2023-54314 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-54314 · Vendor Advisory