PT-2026-34425 · Linux · Linux Kernel

Published 2026-04-22 · Updated 2026-05-26 · CVE-2026-31520

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 A memory leak exists in the apple report fixup() function. The function returns a buffer allocated via kmemdup(), but this buffer is never freed. The caller of report fixup() does not take ownership of the returned pointer, leading to the leak.

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

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

CVE-2026-31520

ECHO-DFDB-65A8-B7AB

Affected Products

Linux Kernel

References · 18

• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31520 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31520 · Vendor Advisory
• https://git.kernel.org/stable/c/31860c3f7ac66ab897a8c90dc4e74fa17ca0b624 · Patch
• https://cve.org/CVERecord?id=CVE-2026-31520 · Security Note
• https://git.kernel.org/stable/c/e2f090aeb7b9930a964e151910f4d45b04c8a7e5 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-31520 · Security Note
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2026-31520 · Vendor Advisory
• https://git.kernel.org/stable/c/239c15116d80f67d32f00acc34575f1a6b699613 · Patch
• https://git.kernel.org/stable/c/2635d0c715f3fb177e0f80ecd5fa48feb6bf3884 · Patch
• https://osv.dev/vulnerability/BELL-CVE-2026-31520 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-31520 · Vendor Advisory
• https://git.kernel.org/stable/c/e652ebd29928181c3e6820e303da25873e9917d4 · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-31520 · Vendor Advisory
• https://git.kernel.org/stable/c/be1a341c161430282acdfe2ac99b413271575cf1 · Patch
• https://git.kernel.org/linus/239c15116d80f67d32f00acc34575f1a6b699613 · Note