CVE-2026-46201

Updated on 28 May 2026

Severity

7.8 High severity

Details

CVSS score
7.8

Overview

About vulnerability

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) A flaw was found in the Linux kernel’s drm/xe subsystem. When handling dma-buf attachments, a resource leak occurs if the initialization of a dma-buf object fails, as the attachment is not properly detached. This oversight can lead to resource exhaustion, potentially allowing a local attacker to cause a Denial of Service (DoS) by making the system unstable or unresponsive.

Details

KernelCare state

Live-patch status from KernelCare for each operating system.

Operating system Status Covered kernels
Debian 13 Released
8 kernels
  • 6.12.85-1
  • 6.12.86-1
  • 6.12.88-1
  • 6.12.73-1
  • 6.12.63-1
  • 6.12.74-1
  • 6.12.69-1
  • 6.12.74-2
Ubuntu 24.04 Planned