diff --git a/src/SharpEmu.Libs/Kernel/KernelMemoryCompatExports.cs b/src/SharpEmu.Libs/Kernel/KernelMemoryCompatExports.cs
index fa88d6b..1f9dee4 100644
--- a/src/SharpEmu.Libs/Kernel/KernelMemoryCompatExports.cs
+++ b/src/SharpEmu.Libs/Kernel/KernelMemoryCompatExports.cs
@@ -2844,15 +2844,23 @@ public static partial class KernelMemoryCompatExports
                 return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT;
             }
 
-            var searchStart = searchStartRaw < 0 ? 0UL : (ulong)searchStartRaw;
-            var searchEnd = searchEndRaw <= 0
-                ? GuestMemoryLayout.DirectBytes
-                : Math.Min((ulong)searchEndRaw, GuestMemoryLayout.DirectBytes);
-            if (searchStart >= searchEnd)
+            if (!ctx.TryWriteUInt64(outAddress, 0) || !ctx.TryWriteUInt64(outSize, 0))
+            {
+                return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT;
+            }
+
+            if (searchStartRaw < 0 || searchEndRaw < 0)
             {
                 return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT;
             }
 
+            var searchStart = (ulong)searchStartRaw;
+            var searchEnd = Math.Min((ulong)searchEndRaw, GuestMemoryLayout.DirectBytes);
+            if (searchStart >= searchEnd)
+            {
+                return MemoryNoSpace;
+            }
+
             bool foundSpan;
             ulong candidate;
             ulong rangeAvailable;
@@ -2868,7 +2876,7 @@ public static partial class KernelMemoryCompatExports
 
             if (!foundSpan)
             {
-                return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_NOT_FOUND;
+                return MemoryNoSpace;
             }
 
             if (!ctx.TryWriteUInt64(outAddress, candidate) || !ctx.TryWriteUInt64(outSize, rangeAvailable))