diff --git a/src/processor/exploitability_linux.cc b/src/processor/exploitability_linux.cc
index d4900bb0..c54cb046 100644
--- a/src/processor/exploitability_linux.cc
+++ b/src/processor/exploitability_linux.cc
@@ -518,18 +518,17 @@ bool ExploitabilityLinux::DisassembleBytes(const string& architecture,
            raw_bytes_tmpfile);
   FILE* objdump_fp = popen(cmd, "r");
   if (!objdump_fp) {
-    fclose(objdump_fp);
     unlink(raw_bytes_tmpfile);
     BPLOG(ERROR) << "Failed to call objdump.";
     return false;
   }
-  if (fread(objdump_output_buffer, 1, buffer_len, objdump_fp) <= 0) {
-    fclose(objdump_fp);
+  if (fread(objdump_output_buffer, 1, buffer_len, objdump_fp) != buffer_len) {
+    pclose(objdump_fp);
     unlink(raw_bytes_tmpfile);
     BPLOG(ERROR) << "Failed to read objdump output.";
     return false;
   }
-  fclose(objdump_fp);
+  pclose(objdump_fp);
   unlink(raw_bytes_tmpfile);
   return true;
 }