From 0ea32e0c7bc2569e597e412a20151ad8a7e64623 Mon Sep 17 00:00:00 2001
From: Joshua Peraza <jperaza@chromium.org>
Date: Mon, 20 Dec 2021 12:57:44 -0800
Subject: [PATCH] linux: initialize padding bytes in tests for msan

Bug: chromium:1281317
Change-Id: I83a50b851e9648e5270793c9149206103ac40ed1
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3350751
Reviewed-by: Justin Cohen <justincohen@chromium.org>
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
---
 client/crashpad_client_linux_test.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/client/crashpad_client_linux_test.cc b/client/crashpad_client_linux_test.cc
index ddf15390..1ab974e7 100644
--- a/client/crashpad_client_linux_test.cc
+++ b/client/crashpad_client_linux_test.cc
@@ -90,6 +90,9 @@ class StartHandlerForSelfTest
   ~StartHandlerForSelfTest() = default;
 
   void SetUp() override {
+    // MSAN requires that padding bytes have been initialized for structs that
+    // are written to files.
+    memset(&options_, 0, sizeof(options_));
     std::tie(options_.start_handler_at_crash,
              options_.set_first_chance_handler,
              options_.crash_non_main_thread,