PT-2026-39057 · Linux · Linux Kernel

Published 2026-05-08 · Updated 2026-05-15 · CVE-2026-43396

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 occurs in the Linux kernel when the dma fence chain alloc() function fails, as the user fence reference is not properly released.

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-2026-43396

Affected Products

Linux Kernel

References · 13

• https://ubuntu.com/security/CVE-2026-43396 · Vendor Advisory
• https://git.kernel.org/stable/c/0879c3f04f67e2a1677c25dcc24669ce21eb6a6c · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-43396 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-43396 · Security Note
• https://git.kernel.org/stable/c/05edc78eb4699e8e000a62aaa8dace50a17e19e3 · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-43396 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-43396 · Vendor Advisory
• https://git.kernel.org/stable/c/f8f90b33934b307f6e4599b9fae38aa1ee5441a7 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-43396 · Security Note
• https://twitter.com/CVEnew/status/2052767686187516093 · Twitter Post
• https://twitter.com/infoflowcloud/status/2052769547329970358 · Twitter Post
• https://git.kernel.org/linus/0879c3f04f67e2a1677c25dcc24669ce21eb6a6c · Note
• https://twitter.com/hetmehtaa/status/2055151398283837677 · Twitter Post