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              "value": "AV:L - The vulnerable code is reached through the local DRM Xe `XE_EXEC_QUEUE_CREATE` ioctl on a GPU device/render node. It is not reachable by remote network traffic or adjacent/physical input.\nAC:L - The attacker controls the ioctl sequence and can drive the relevant error cleanup paths through local resource pressure or interruptible operations. No uncontrollable race or rare victim state is required for the dangling queue pointer to be created and later exercised.\nPR:L - The ioctl is registered with `DRM_RENDER_ALLOW`, with no root, DRM master, or authentication requirement, so an unprivileged local GPU client that can open the render node can reach it. This is basic local user access, not real administrator privilege.\nUI:N - Exploitation only requires the attacker to issue ioctls from their own process. No victim user action is needed.\nS:U - The bug is within the kernel DRM Xe driver and impacts kernel resources under the same OS security authority. It does not cross a VM, hypervisor, or IOMMU security boundary by itself.\nC:H - The cleanup bug leaves a freed `struct xe_exec_queue` linked into VM or hardware-engine-group lists, creating a use-after-free. Under the required kernel scoring guidance, UAF memory corruption is treated as enabling high confidentiality impact.\nI:H - The stale list entry is later dereferenced through queue fields and operation pointers, making this kernel heap use-after-free potentially exploitable for control-flow or memory corruption. Under the required guidance, UAF implies high integrity impact.\nA:H - The dangling pointer can be reached by later VM or engine-group list traversal and can cause kernel oops, panic, or hang. A local attacker can trigger the condition repeatedly, so availability impact is high."
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