Merge pull request #4 from ycdxsb/master

fix an error in function replace_insns and the issue comes from a mmh version difference

Author: 5angjun

kafl_fuzzer/common/util.py

@@ -279,7 +279,7 @@ def get_dependency(self, ioctl):
             return None
         else:
 
-            while True:
+            for _ in range(100):
                 num = random.choice(self.dependency[target_index])
                 if num==ioctl:
                     continue

kafl_fuzzer/technique/havoc.py

@@ -134,7 +134,7 @@ def replace_insns(irp_list, func):
         new_irp_list.append(rand.select(appended_target_list))
 
         pos = rand.int(len(irp_list))
-        new_irp_list = irp_list[:pos]+ new_irp_list.pop() + irp_list[pos+1:]
+        new_irp_list = irp_list[:pos]+ new_irp_list + irp_list[pos+1:]
         func(new_irp_list)
         new_irp_list.clear()
 
@@ -256,4 +256,4 @@ def get_valid_length(target, IoControlCode):
 
     target.InBuffer_length = origin_InBufferLength
     target.OutBuffer_length = origin_OutBufferLength
-    target.InBuffer = origin_InBuffer
+    target.InBuffer = origin_InBuffer

kafl_fuzzer/worker/execution_result.py

@@ -63,7 +63,7 @@ def hash(self, pre_lut=False):
             assert not pre_lut, "Request pre-LUT hash but LUT has been applied already."
         else:
             self.apply_lut()
-        return "%016x" % mmh3.hash64(self.cbuffer, seed=0xaaaaaaaa, x64arch=True, signed=False)[0]
+        return "%016x" % mmh3.hash64(bytes(self.cbuffer), seed=0xaaaaaaaa, x64arch=True, signed=False)[0]
 
     def apply_lut(self):
         if not self.lut_applied: