CVE-2026-46201
Analyzed Analyzed - Analysis Complete
Memory Leak in Linux Kernel DRM/xe Subsystem

Publication date: 2026-05-28

Last updated on: 2026-06-10

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: drm/xe: Fix dma-buf attachment leak in xe_gem_prime_import() When xe_dma_buf_init_obj() fails, the attachment from dma_buf_dynamic_attach() is not detached. Add dma_buf_detach() before returning the error. Note: we cannot use goto out_err here because xe_dma_buf_init_obj() already frees bo on failure, and out_err would double-free it. (cherry picked from commit a828eb185aac41800df8eae4b60501ccc0dbbe51)
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-05-28
Last Modified
2026-06-10
Generated
2026-06-17
AI Q&A
2026-05-28
EPSS Evaluated
2026-06-16
NVD
CVE-2026-46201
EUVD
EUVD-2026-32828
Affected Vendors & Products
Showing 4 associated CPEs
Vendor Product Version / Range
linux linux_kernel 7.1
linux linux_kernel From 6.13 (inc) to 6.18.32 (exc)
linux linux_kernel From 6.19 (inc) to 7.0.9 (exc)
linux linux_kernel From 6.8 (inc) to 6.12.90 (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
Executive Summary

This vulnerability is a resource leak in the Linux kernel's drm/xe component related to dma-buf attachments. Specifically, when the function xe_dma_buf_init_obj() fails, it does not properly detach the attachment created by dma_buf_dynamic_attach(), leading to a dma-buf attachment leak. The fix involves adding a call to dma_buf_detach() before returning the error to prevent this leak.

Impact Analysis

This vulnerability can cause a resource leak in the Linux kernel, which may lead to increased memory usage or resource exhaustion over time. While it does not directly indicate a security breach such as privilege escalation or data corruption, the leak could degrade system performance or stability if exploited repeatedly.

Mitigation Strategies

The vulnerability has been resolved in the Linux kernel by fixing a dma-buf attachment leak in the drm/xe component. To mitigate this vulnerability, you should update your Linux kernel to a version that includes the fix for this issue.

Specifically, ensure your kernel includes the patch that adds dma_buf_detach() before returning an error in xe_dma_buf_init_obj(), preventing the attachment leak.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-46201. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart