diff --git a/drivers/gpu/drm/xe/xe_bo.c b/drivers/gpu/drm/xe/xe_bo.c
index 09f7f6f12c4c..152bdea13d7f 100644
--- a/drivers/gpu/drm/xe/xe_bo.c
+++ b/drivers/gpu/drm/xe/xe_bo.c
@@ -1982,6 +1982,16 @@ static vm_fault_t xe_bo_cpu_fault_fastpath(struct vm_fault *vmf, struct xe_devic
 	if (!dma_resv_trylock(tbo->base.resv))
 		goto out_validation;
 
+	/*
+	 * Reject CPU faults to purgeable BOs. DONTNEED BOs can be purged
+	 * at any time, and purged BOs have no backing store. Either case
+	 * is undefined behavior for CPU access.
+	 */
+	if (xe_bo_madv_is_dontneed(bo) || xe_bo_is_purged(bo)) {
+		ret = VM_FAULT_SIGBUS;
+		goto out_unlock;
+	}
+
 	if (xe_ttm_bo_is_imported(tbo)) {
 		ret = VM_FAULT_SIGBUS;
 		drm_dbg(&xe->drm, "CPU trying to access an imported buffer object.\n");
@@ -2072,6 +2082,15 @@ static vm_fault_t xe_bo_cpu_fault(struct vm_fault *vmf)
 		if (err)
 			break;
 
+		/*
+		 * Reject CPU faults to purgeable BOs. DONTNEED BOs can be
+		 * purged at any time, and purged BOs have no backing store.
+		 */
+		if (xe_bo_madv_is_dontneed(bo) || xe_bo_is_purged(bo)) {
+			err = -EFAULT;
+			break;
+		}
+
 		if (xe_ttm_bo_is_imported(tbo)) {
 			err = -EFAULT;
 			drm_dbg(&xe->drm, "CPU trying to access an imported buffer object.\n");