CVE-2026-43399
kernel: drm/amdgpu/userq: Fix reference leak in amdgpu_userq_wait_ioctl
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 8, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's AMD GPU (amdgpu) driver. Specifically, a reference leak occurs in the amdgpu_userq_wait_ioctl function. This issue arises when an I/O control (ioctl) operation is aborted because the output array provided is insufficient. A local attacker could exploit this to cause resource exhaustion, leading to a denial of service (DoS) on the system.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-911 · Improper Update of Reference Count