CVE-2026-98997

A flaw was found in the Linux kernel's AMDGPU graphics driver. In the user queue implementation, the driver fails to verify whether a buffer object was designated for queue doorbells before placing it in the doorbell domain. A local user can exploit this vulnerability by submitting a shared memory buffer from another application as a doorbell handle, prompting the driver to discard the buffer's data. This can result in unauthorized data loss and disruption for other clients sharing memory on the same device.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.