PT-2026-44363 · Linux · Linux Kernel

CVE-2026-46240 · Published 2026-05-28 · Updated 2026-07-28

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Description A use-after-free issue exists in the iris release internal buffers() function. A regression was introduced where session release buf() could free a buffer while the caller, iris release internal buffers(), continued to access the buffer variable, potentially leading to memory corruption or system instability.

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

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2026-46240

OPENSUSE-SU-2026:10954-1

USN-8566-1

USN-8568-1

USN-8569-1

USN-8593-1

USN-8603-1

USN-8618-1

Affected Products

Linux Kernel

References · 1404

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46240.json · Exploit
• https://ubuntu.com/security/CVE-2026-64049 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-64070 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-46024 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-64517 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-63910 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-63841 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-64075 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-53025 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-63860 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-45991 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-46137 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-64066 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-46223 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-64243 · Vendor Advisory