A race condition in the Linux kernel’s AMD XDNA accelerator driver can allow a locally privileged userspace program to submit commands during a narrow autosuspend window. Because the driver’s rpm_on flag is still set, it may skip the required resume operation, causing commands to be processed while the device is not fully active. This results in incorrect or corrupt device behavior, potentially leading to application errors or a denial of service for services relying on the accelerator. The likely attack vector involves a locally privileged user-space process that can issue commands during the autosuspend window.

The flaw affects any Linux kernel running the AMD XDNA (ACCEL) driver that does not contain the referenced patch. No specific kernel version numbers are listed in the advisory, meaning the issue may persist in a wide range of kernel releases against which the device module is available.

The CVSS score is not disclosed and the EPSS score is unavailable; the vulnerability is not listed in CISA’s KEV catalog. Based on the description, it is inferred that exploitation would require local privileged access to submit device commands while an autosuspend cycle is underway. The impact is limited to device operation and does not provide direct remote code execution or full system compromise, but it can disrupt dependent services and applications, and the likelihood of exploitation remains uncertain.