bpo-30704, bpo-30604: Fix memleak in code_dealloc() (#2455) (#2456)

vstinner · ned-deily · commit c794b643c917 · 2017-07-06T23:45:50.000-04:00
Free also co_extra->ce_extras, not only co_extra. (cherry picked from commit 23e7944) (cherry picked from commit 26daad4)
diff --git a/Objects/codeobject.c b/Objects/codeobject.c
@@ -422,7 +422,8 @@ code_dealloc(PyCodeObject *co)
             }
         }
 
-        PyMem_FREE(co->co_extra);
+        PyMem_Free(co_extra->ce_extras);
+        PyMem_Free(co_extra);
     }
 
     Py_XDECREF(co->co_code);

Original file line number	Diff line number	Diff line change
`@@ -422,7 +422,8 @@ code_dealloc(PyCodeObject *co)`
`422`	`422`	`}`
`423`	`423`	`}`
`424`	`424`
`425`		`- PyMem_FREE(co->co_extra);`
	`425`	`+ PyMem_Free(co_extra->ce_extras);`
	`426`	`+ PyMem_Free(co_extra);`
`426`	`427`	`}`
`427`	`428`
`428`	`429`	`Py_XDECREF(co->co_code);`