diff --git a/cocotbext/axi/axi_master.py b/cocotbext/axi/axi_master.py
index 6f395ab..97010cb 100644
--- a/cocotbext/axi/axi_master.py
+++ b/cocotbext/axi/axi_master.py
@@ -291,6 +291,9 @@ class AxiMasterWrite(Region, Reset):
         if isinstance(data, int):
             raise ValueError("Expected bytes or bytearray for data")
 
+        if burst != AxiBurstType.FIXED and address+len(data) >= 2**self.address_width:
+            raise ValueError("Requested transfer overruns end of address space")
+
         if awid is None or awid < 0:
             awid = None
         elif awid > self.id_count:
@@ -357,6 +360,9 @@ class AxiMasterWrite(Region, Reset):
         if isinstance(data, int):
             raise ValueError("Expected bytes or bytearray for data")
 
+        if burst != AxiBurstType.FIXED and address+len(data) >= 2**self.address_width:
+            raise ValueError("Requested transfer overruns end of address space")
+
         if awid is None or awid < 0:
             awid = None
         elif awid > self.id_count:
@@ -717,6 +723,9 @@ class AxiMasterRead(Region, Reset):
         if length < 0:
             raise ValueError("Read length must be positive")
 
+        if burst != AxiBurstType.FIXED and address+length >= 2**self.address_width:
+            raise ValueError("Requested transfer overruns end of address space")
+
         if arid is None or arid < 0:
             arid = None
         elif arid > self.id_count:
@@ -771,6 +780,9 @@ class AxiMasterRead(Region, Reset):
         if length < 0:
             raise ValueError("Read length must be positive")
 
+        if burst != AxiBurstType.FIXED and address+length >= 2**self.address_width:
+            raise ValueError("Requested transfer overruns end of address space")
+
         if arid is None or arid < 0:
             arid = None
         elif arid > self.id_count:
diff --git a/cocotbext/axi/axil_master.py b/cocotbext/axi/axil_master.py
index d1f48fd..f833362 100644
--- a/cocotbext/axi/axil_master.py
+++ b/cocotbext/axi/axil_master.py
@@ -182,6 +182,9 @@ class AxiLiteMasterWrite(Region, Reset):
         if isinstance(data, int):
             raise ValueError("Expected bytes or bytearray for data")
 
+        if address+len(data) >= 2**self.address_width:
+            raise ValueError("Requested transfer overruns end of address space")
+
         if not self.awprot_present and prot != AxiProt.NONSECURE:
             raise ValueError("awprot sideband signal value specified, but signal is not connected")
 
@@ -419,6 +422,12 @@ class AxiLiteMasterRead(Region, Reset):
         if address < 0 or address >= 2**self.address_width:
             raise ValueError("Address out of range")
 
+        if length < 0:
+            raise ValueError("Read length must be positive")
+
+        if address+length >= 2**self.address_width:
+            raise ValueError("Requested transfer overruns end of address space")
+
         if not self.arprot_present and prot != AxiProt.NONSECURE:
             raise ValueError("arprot sideband signal value specified, but signal is not connected")