The vulnerability is a concurrency defect in the Linux kernel’s AMD X‑DNA accelerator driver. The runtime suspend callback drains the job workqueue before suspending the device. If a job that is still executing calls pm_runtime_resume_and_get(), it may re‑enter the suspend path and deadlock with the runtime suspend code. The deadlock prevents the device from completing suspend or resume operations, halting workloads that rely on the accelerator. The weakness is captured by CWE‑367 (Deadlock).

All Linux kernel releases containing the AMD X‑DNA driver before the application of commit 6b13cb8f48a42ddf6dd98865b673a82e37ff238b are affected. This covers every mainline kernel shipped with the driver code preceding that commit. The flaw applies only to systems that have an AMD X‑DNA accelerator and the associated driver installed.

EPSS data indicates a low probability of exploitation, with a score of less than 1%. Based on the description, it is inferred that an attacker would need the ability to submit jobs to the device, which typically requires local or privileged access. With such access, the attacker could trigger the deadlock during a runtime suspend, causing a local denial of service against the device and any workloads that depend on it. The vulnerability is not listed in the CISA KEV catalog, and no remote execution or data exfiltration is possible from this issue.