Fix crash on failure to read bytecode (arguments, local variables, etc.)

penneryu · saghul · commit c0fd00c21d95 · 2025-09-01T09:13:52.000+02:00
diff --git a/quickjs.c b/quickjs.c
@@ -34079,7 +34079,8 @@ static void free_function_bytecode(JSRuntime *rt, JSFunctionBytecode *b)
 {
     int i;
 
-    free_bytecode_atoms(rt, b->byte_code_buf, b->byte_code_len, true);
+    if (b->byte_code_buf)
+        free_bytecode_atoms(rt, b->byte_code_buf, b->byte_code_len, true);
 
     if (b->vardefs) {
         for(i = 0; i < b->arg_count + b->var_count; i++) {

Original file line number	Diff line number	Diff line change
`@@ -34079,7 +34079,8 @@ static void free_function_bytecode(JSRuntime rt, JSFunctionBytecode b)`
`34079`	`34079`	`{`
`34080`	`34080`	`int i;`
`34081`	`34081`
`34082`		`- free_bytecode_atoms(rt, b->byte_code_buf, b->byte_code_len, true);`
	`34082`	`+ if (b->byte_code_buf)`
	`34083`	`+ free_bytecode_atoms(rt, b->byte_code_buf, b->byte_code_len, true);`
`34083`	`34084`
`34084`	`34085`	`if (b->vardefs) {`
`34085`	`34086`	`for(i = 0; i < b->arg_count + b->var_count; i++) {`