CVE-2026-43399 Details
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/userq: Fix reference leak in amdgpu_userq_wait_ioctl Drop reference to syncobj and timeline fence when aborting the ioctl due output array being too small. (cherry picked from commit 68951e9c3e6bb22396bc42ef2359751c8315dd27)
A reference leak vulnerability has been identified in the Linux kernel's AMDGPU user queue implementation. This issue arises in the 'amdgpu_userq_wait_ioctl' function, where references to synchronization objects and timeline fences are not properly released when the ioctl operation is aborted due to the output array being too small. The vulnerability is present in Linux kernel versions 6.16 and later.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/49abfa812617a7f2d0132c70d23ac98b389c6ec1 | kernel.org | Patch |
| https://git.kernel.org/stable/c/5409247d41f372bec5b141ef599f2d9f5e81b746 | kernel.org | Patch |
| https://git.kernel.org/stable/c/762f47e2b824383d5be65eee2c40a1269b7d50c8 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-Other | Weakness Not in a Standard CWE Category | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.16, < 6.18.19 >= 6.19, < 6.19.9 7.0 rc1 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| May 21, 2026 | Initial Analysis | [email protected] |
| May 8, 2026 | New CVE Received | kernel.org |