[Script] Treat overly long scriptPubKeys as unspendable

random-zebra · random-zebra · commit 0657a1344912 · 2019-10-09T00:15:08.000+02:00
Backports bitcoin/bitcoin 4f87af6
diff --git a/src/script/script.h b/src/script/script.h
@@ -618,7 +618,7 @@ class CScript : public std::vector<unsigned char>
      */
     bool IsUnspendable() const
     {
-        return (size() > 0 && *begin() == OP_RETURN);
+        return (size() > 0 && *begin() == OP_RETURN) || (size() > MAX_SCRIPT_SIZE);
     }
 
     std::string ToString() const;

Original file line number	Diff line number	Diff line change
`@@ -618,7 +618,7 @@ class CScript : public std::vector<unsigned char>`
`618`	`618`	`*/`
`619`	`619`	`bool IsUnspendable() const`
`620`	`620`	`{`
`621`		`- return (size() > 0 && *begin() == OP_RETURN);`
	`621`	`+ return (size() > 0 && *begin() == OP_RETURN) \|\| (size() > MAX_SCRIPT_SIZE);`
`622`	`622`	`}`
`623`	`623`
`624`	`624`	`std::string ToString() const;`