CVE-2026-43396
Analyzed Analyzed - Analysis Complete
DRM/XE Sync User Fence Leak Fix

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/xe/sync: Fix user fence leak on alloc failure When dma_fence_chain_alloc() fails, properly release the user fence reference to prevent a memory leak. (cherry picked from commit a5d5634cde48a9fcd68c8504aa07f89f175074a0)
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-05-08
Last Modified
2026-05-21
Generated
2026-06-19
AI Q&A
2026-05-08
EPSS Evaluated
2026-06-18
NVD
CVE-2026-43396
EUVD
EUVD-2026-28702
Affected Vendors & Products
Showing 7 associated CPEs
Vendor Product Version / Range
linux linux_kernel 6.18
linux linux_kernel 6.18
linux linux_kernel 6.18
linux linux_kernel 6.18
linux linux_kernel 7.0
linux linux_kernel From 6.19 (inc) to 6.19.9 (exc)
linux linux_kernel From 6.18.1 (inc) to 6.18.20 (exc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-401 The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Impact Analysis

The impact of this vulnerability is a memory leak in the Linux kernel. Over time, this could lead to increased memory usage and potentially degrade system performance or stability if the leak is significant and occurs frequently.

Executive Summary

This vulnerability is a memory leak issue in the Linux kernel related to the drm/xe/sync component. Specifically, when the function dma_fence_chain_alloc() fails during allocation, it does not properly release the user fence reference, which leads to a memory leak.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-43396. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart