AMDKFD Memory Leak in Linux Kernel

Publication date: 2026-05-08

Last updated on: 2026-05-21

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Unreserve bo if queue update failed Error handling path should unreserve bo then return failed. (cherry picked from commit c24afed7de9ecce341825d8ab55a43a254348b33)

CVSS Scores

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Meta Information

Published

2026-05-08

Last Modified

2026-05-21

Generated

2026-07-09

AI Q&A

2026-05-08

EPSS Evaluated

2026-07-08

NVD

CVE-2026-43444

EUVD

EUVD-2026-28750

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	From 6.12 (inc) to 6.12.78 (exc)
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	From 6.13 (inc) to 6.18.19 (exc)
linux	linux_kernel	From 6.19 (inc) to 6.19.9 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-476	The product dereferences a pointer that it expects to be valid but is NULL.

Attack-Flow Graph

Executive Summary

This vulnerability is related to the Linux kernel's Direct Rendering Manager (DRM) component, specifically the amdkfd driver. The issue involves improper error handling where a buffer object (bo) was not unreserved if a queue update failed. The fix ensures that the buffer object is properly unreserved before returning a failure status.

Impact Analysis

If the buffer object is not unreserved properly when a queue update fails, it could lead to resource leaks or improper resource management within the kernel. This might cause system instability, degraded performance, or unexpected behavior in applications relying on the affected driver.

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