PT-2026-39059 · Linux · Linux Kernel

Published 2026-05-08 · Updated 2026-05-26 · CVE-2026-43398

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 drm/amdgpu component where the amdgpu userq wait ioctl function fails to properly validate user inputs. Providing excessively large input values can lead to an Out-Of-Memory (OOM) condition, which is a state where the system cannot allocate enough memory to perform necessary operations, potentially resulting in a denial of service.

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

Exploit

Related Identifiers

CVE-2026-43398

Affected Products

Linux Kernel

References · 20

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43398.json · Exploit
• https://git.kernel.org/stable/c/64ac7c09fc44985ec9bb6a9db740899fa40ca613 · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-43398 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-43398 · Vendor Advisory
• https://git.kernel.org/stable/c/b1d10508da559da2e0ca9cca6505094a7df948e1 · Patch
• https://ubuntu.com/security/CVE-2026-43398 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2026-43398 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-43398 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-43398 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-43398 · Vendor Advisory
• https://git.kernel.org/stable/c/3cd93bc695b3456f26f5ed52753d9071da26202a · Patch
• https://osv.dev/vulnerability/CVE-2026-43398 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-43398 · Vendor Advisory
• https://twitter.com/CVEnew/status/2052767683754750419 · Twitter Post
• https://twitter.com/infoflowcloud/status/2052769511980335299 · Twitter Post