Backport r67975: #4759: fix segfault in bytearray.translate(x, None).
diff --git a/Objects/bytearrayobject.c b/Objects/bytearrayobject.c
index d75eb53..56071a0 100644
--- a/Objects/bytearrayobject.c
+++ b/Objects/bytearrayobject.c
@@ -1465,6 +1465,7 @@
     if (delobj != NULL) {
         if (_getbuffer(delobj, &vdel) < 0) {
             result = NULL;
+            delobj = NULL;  /* don't try to release vdel buffer on exit */
             goto done;
         }
     }