From d086fe51092b6302cf2fc5a460e63393726468e5 Mon Sep 17 00:00:00 2001
From: Steven Moreland <smoreland@google.com>
Date: Tue, 26 Jul 2022 22:11:13 +0000
Subject: [PATCH] libutils: disallow extending lifetime on stack

Bug: 232557259
Test: libutils_test
Change-Id: Iacf45b9f295a48904606ced35994ba35566bfcc3
---
 libutils/RefBase.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libutils/RefBase.cpp b/libutils/RefBase.cpp
index 79c57434f..12c2c29e8 100644
--- a/libutils/RefBase.cpp
+++ b/libutils/RefBase.cpp
@@ -791,6 +791,8 @@ RefBase::~RefBase()
 
 void RefBase::extendObjectLifetime(int32_t mode)
 {
+    check_not_on_stack(this);
+
     // Must be happens-before ordered with respect to construction or any
     // operation that could destroy the object.
     mRefs->mFlags.fetch_or(mode, std::memory_order_relaxed);