From e4f18f9daabf34213e0c7338fd48296e6f49281d Mon Sep 17 00:00:00 2001
From: Scott Nonnenberg <scott@signal.org>
Date: Fri, 1 Mar 2019 12:03:05 -0800
Subject: [PATCH] libsignal-protocol: Protect against null thrown Errors

---
 libtextsecure/libsignal-protocol.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/libtextsecure/libsignal-protocol.js b/libtextsecure/libsignal-protocol.js
index ac4c28b5a..ac9b7fd7b 100644
--- a/libtextsecure/libsignal-protocol.js
+++ b/libtextsecure/libsignal-protocol.js
@@ -36155,7 +36155,11 @@ SessionCipher.prototype = {
     // using each one at a time. Stop and return the result if we get
     // a valid result
     if (sessionList.length === 0) {
-        return Promise.reject(errors[0]);
+        var error = errors[0];
+        if (!error) {
+          error = new Error('decryptWithSessionList: list is empty, but no errors in array');
+        }
+        return Promise.reject(error);
     }
 
     var session = sessionList.pop();