PT-2026-26116 · Linux+1 · Linux Kernel+1

Published 2026-01-01 · Updated 2026-05-22 · CVE-2026-23256

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 An issue exists in the Linux kernel related to the liquidio component. Specifically, a flaw was identified in the setup nic devices() function where an off-by-one error in the cleanup loop can lead to a memory leak. The original cleanup loop, using while(i--), skips the failing index i, resulting in unreleased memory. The correction involves modifying the loop to iterate from the current index i down to 0. This issue was identified through code review and has been addressed.

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

Exploit

Weakness Enumeration

CWE-193

Related Identifiers

CVE-2026-23256

USN-8278-1

USN-8289-1

USN-8296-1

Affected Products

Linux Kernel

Ubuntu

References · 224

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23256.json · Exploit
• https://ubuntu.com/security/CVE-2026-23095 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23025 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23254 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23167 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23145 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-71198 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23131 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-71196 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23020 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23257 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23059 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23103 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-8289-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-8289-1 · Vendor Advisory