In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Properly acquire queue buffers in CRIU restore When… (CVE-2026-98905)

The vulnerability in the Linux kernel's drm/amdkfd subsystem was due to the omission of a call to kfd_queue_acquire_buffers() in the set_queue_properties_from_criu() function after it was split from set_queue_properties_from_user(). This omission caused the buffer fields in queue_properties to remain uninitialized during CRIU restore operations, potentially leading to errors or instability when later code assumes these buffers are properly set. The patch added the missing call and corrected casting issues to properly initialize these buffers.

The impact involves potential instability or errors in the handling of queue buffers during CRIU restore operations in the drm/amdkfd kernel component. The exact consequences are not detailed, but uninitialized buffer fields could lead to unexpected behavior in kernel operations related to AMD GPU device queues.

A fix has been applied to the Linux kernel to properly acquire queue buffers in the set_queue_properties_from_criu() function. Users should update to a kernel version that includes the commit 88ed96abbbe27b70193544fbc1ee06448c274714 or later to remediate this issue. No additional mitigation steps are specified.