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Fix vulnerability where large GPS XTRA data can be injected. -Can potentially crash system with OOM. Bug: 29555864 am: dde12c6923

Browse Source 
am: 3462e52676

Change-Id: I45779f683b417fe2d3cd4f7702d07a9cd13bd6f0
This commit is contained in:
David Christie
2016-08-11 18:33:15 +00:00
committed by android-build-merger
parent f645010092 3462e52676
commit b4a5615416
1 changed files with 4 additions and 2 deletions
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6
services/core/java/com/android/server/location/GpsXtraDownloader.java
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@@ -44,6 +44,7 @@ public class GpsXtraDownloader {
private static final String TAG = "GpsXtraDownloader";
static final boolean DEBUG = false;
private static final long MAXIMUM_CONTENT_LENGTH_BYTES = 1000000; // 1MB.
private Context mContext;
private String[] mXtraServers;
@@ -138,8 +139,9 @@ public class GpsXtraDownloader {
byte[] body = null;
if (entity != null) {
try {
if (entity.getContentLength() > 0) {
body = new byte[(int) entity.getContentLength()];
long contentLength = entity.getContentLength();
if (contentLength > 0 && contentLength <= MAXIMUM_CONTENT_LENGTH_BYTES) {
body = new byte[(int) contentLength];
DataInputStream dis = new DataInputStream(entity.getContent());
try {
dis.readFully(body);