1 files changed, 10 insertions, 1 deletions
diff --git a/src/feature/dirparse/unparseable.c b/src/feature/dirparse/unparseable.c
index 98b68f90bb..930717a6ff 100644
--- a/src/feature/dirparse/unparseable.c
+++ b/src/feature/dirparse/unparseable.c
@@ -1,7 +1,7 @@
 /* Copyright (c) 2001 Matej Pfajfar.
  * Copyright (c) 2001-2004, Roger Dingledine.
  * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
- * Copyright (c) 2007-2020, The Tor Project, Inc. */
+ * Copyright (c) 2007-2021, The Tor Project, Inc. */
 /* See LICENSE for licensing information */
 
 /**
@@ -497,6 +497,15 @@ dump_desc,(const char *desc, const char *type))
 {
   tor_assert(desc);
   tor_assert(type);
+#ifndef TOR_UNIT_TESTS
+  /* For now, we are disabling this function, since it can be called with
+   * strings that are far too long.  We can turn it back on if we fix it
+   * someday, but we'd need to give it a length argument. A likelier
+   * resolution here is simply to remove this module entirely.  See tor#40286
+   * for background. */
+  if (1)
+    return;
+#endif
   size_t len;
   /* The SHA256 of the string */
   uint8_t digest_sha256[DIGEST256_LEN];