From 611b730bade54a0a79dbcc3087d9393086e6dbdf Mon Sep 17 00:00:00 2001
From: Devin Moore <devinmoore@google.com>
Date: Wed, 12 Mar 2025 19:35:53 +0000
Subject: Check mDataPos to see if the Parcel needs to grow

Flag: EXEMPT bug fix
Ignore-AOSP-First: security fix
Test: atest binderUnitTest
Bug: 399155883
Change-Id: I38b755ca3381cfca3300292873f763823fbf169b
---
 libs/binder/Parcel.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'libs/binder/Parcel.cpp')

diff --git a/libs/binder/Parcel.cpp b/libs/binder/Parcel.cpp
index 777c22a63e..2c37624304 100644
--- a/libs/binder/Parcel.cpp
+++ b/libs/binder/Parcel.cpp
@@ -542,7 +542,7 @@ status_t Parcel::appendFrom(const Parcel* parcel, size_t offset, size_t len) {
         return BAD_VALUE;
     }
 
-    if ((mDataSize+len) > mDataCapacity) {
+    if ((mDataPos + len) > mDataCapacity) {
         // grow data
         err = growData(len);
         if (err != NO_ERROR) {
-- 
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