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39 lines
2.1 KiB
Diff
39 lines
2.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Raphael Kim <raphk@google.com>
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Date: Mon, 18 Sep 2023 14:07:23 -0700
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Subject: [PATCH] Validate component name length before requesting notification
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access.
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Bug: 295335110
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Test: Test app with long component name
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(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:447216ecbe5f22ea06379d9587dae530b1202fe8)
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Merged-In: I7ea5d5c1f78858db9865f3310d1e0aff9c8b5579
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Change-Id: I7ea5d5c1f78858db9865f3310d1e0aff9c8b5579
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---
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.../server/companion/CompanionDeviceManagerService.java | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/services/companion/java/com/android/server/companion/CompanionDeviceManagerService.java b/services/companion/java/com/android/server/companion/CompanionDeviceManagerService.java
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index e39652d77b7a..087fe8560fc8 100644
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--- a/services/companion/java/com/android/server/companion/CompanionDeviceManagerService.java
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+++ b/services/companion/java/com/android/server/companion/CompanionDeviceManagerService.java
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@@ -107,6 +107,8 @@ public class CompanionDeviceManagerService extends SystemService implements Bind
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private static final boolean DEBUG = false;
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private static final String LOG_TAG = "CompanionDeviceManagerService";
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+ private static final int MAX_CN_LENGTH = 500;
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+
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private static final String XML_TAG_ASSOCIATIONS = "associations";
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private static final String XML_TAG_ASSOCIATION = "association";
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private static final String XML_ATTR_PACKAGE = "package";
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@@ -290,6 +292,9 @@ public class CompanionDeviceManagerService extends SystemService implements Bind
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String callingPackage = component.getPackageName();
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checkCanCallNotificationApi(callingPackage);
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int userId = getCallingUserId();
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+ if (component.flattenToString().length() > MAX_CN_LENGTH) {
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+ throw new IllegalArgumentException("Component name is too long.");
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+ }
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final long identity = Binder.clearCallingIdentity();
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try {
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return PendingIntent.getActivity(getContext(),
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