PT-2026-20440 · Linux · Linux Kernel

Published 2025-01-01 · Updated 2026-04-23 · CVE-2025-71231

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

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

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

Description The Linux kernel contains a flaw in the crypto/iaa module related to an out-of-bounds index in the find empty iaa compression mode() function. A local variable, i, is initialized incorrectly, and if no empty compression mode is found, the function returns an invalid index (IAA COMP MODES MAX), leading to an invalid array access in the add iaa compression mode() function.

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

Exploit

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2025-71231

ECHO-2D34-23C7-211F

OPENSUSE-SU-2026:10387-1

OPENSUSE-SU-2026:20416-1

SUSE-SU-2026:0962-1

SUSE-SU-2026:1041-1

SUSE-SU-2026:1081-1

SUSE-SU-2026:1573-1

SUSE-SU-2026:20667-1

SUSE-SU-2026:20720-1

SUSE-SU-2026:20838-1

SUSE-SU-2026:20845-1

SUSE-SU-2026:20876-1

SUSE-SU-2026:20931-1

SUSE-SU-2026:21114-1

SUSE-SU-2026:21123-1

SUSE-SU-2026:21284-1

Affected Products

Linux Kernel

References · 1697

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71231.json · Exploit
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2404-CVE-2025-71231 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-71231 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-11-CVE-2025-71231 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:1573-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-71231 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-71231 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2026:1041-1 · Vendor Advisory
• https://git.kernel.org/stable/c/48329301969f6d21b2ef35f678e40f72b59eac94 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2026:20720-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2025-71231 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-71231 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:21123-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:20416-1 · Vendor Advisory
• https://git.kernel.org/stable/c/d75207465eed20bc9b0daa4a0927de9568996067 · Patch