DivestOS/Patches/LineageOS-17.1/android_frameworks_base/378102.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mat=C3=ADas=20Hern=C3=A1ndez?= <matiashe@google.com>
Date: Thu, 15 Jun 2023 18:31:34 +0200
Subject: [PATCH] Forbid granting access to NLSes with too-long component names
This makes the limitation, which was previously only checked on the Settings UI, enforced everywhere.
Fixes: 260570119
Fixes: 286043036
Test: atest + manually
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:dc71156a29427c8b228129f5b1368392f297835b)
Merged-In: I4c25d80978cb37a8fa1531f5045259d25ac64692
Change-Id: I4c25d80978cb37a8fa1531f5045259d25ac64692
---
.../java/android/app/NotificationManager.java | 6 ++++
.../NotificationManagerService.java | 5 ++++
.../android/server/vr/VrManagerService.java | 6 +++-
.../NotificationManagerServiceTest.java | 28 +++++++++++++++++++
4 files changed, 44 insertions(+), 1 deletion(-)
diff --git a/core/java/android/app/NotificationManager.java b/core/java/android/app/NotificationManager.java
index b81a86331ca0..3f0fff4f40dd 100644
--- a/core/java/android/app/NotificationManager.java
+++ b/core/java/android/app/NotificationManager.java
@@ -378,6 +378,12 @@ public class NotificationManager {
*/
public static final int IMPORTANCE_MAX = 5;
+ /**
+ * Maximum length of the component name of a registered NotificationListenerService.
+ * @hide
+ */
+ public static int MAX_SERVICE_COMPONENT_NAME_LENGTH = 500;
+
@UnsupportedAppUsage
private static INotificationManager sService;
diff --git a/services/core/java/com/android/server/notification/NotificationManagerService.java b/services/core/java/com/android/server/notification/NotificationManagerService.java
index 7ae80d927aaa..d056eac37039 100755
--- a/services/core/java/com/android/server/notification/NotificationManagerService.java
+++ b/services/core/java/com/android/server/notification/NotificationManagerService.java
@@ -4161,6 +4161,11 @@ public class NotificationManagerService extends SystemService {
boolean granted) {
Preconditions.checkNotNull(listener);
checkCallerIsSystemOrShell();
+ if (granted && listener.flattenToString().length()
+ > NotificationManager.MAX_SERVICE_COMPONENT_NAME_LENGTH) {
+ throw new IllegalArgumentException(
+ "Component name too long: " + listener.flattenToString());
+ }
final long identity = Binder.clearCallingIdentity();
try {
if (mAllowedManagedServicePackages.test(
diff --git a/services/core/java/com/android/server/vr/VrManagerService.java b/services/core/java/com/android/server/vr/VrManagerService.java
index 45689ce73c9f..7eeba02542e4 100644
--- a/services/core/java/com/android/server/vr/VrManagerService.java
+++ b/services/core/java/com/android/server/vr/VrManagerService.java
@@ -1045,7 +1045,11 @@ public class VrManagerService extends SystemService
for (ComponentName c : possibleServices) {
if (Objects.equals(c.getPackageName(), pkg)) {
- nm.setNotificationListenerAccessGrantedForUser(c, userId, true);
+ try {
+ nm.setNotificationListenerAccessGrantedForUser(c, userId, true);
+ } catch (Exception e) {
+ Slog.w(TAG, "Could not grant NLS access to package " + pkg, e);
+ }
}
}
}
diff --git a/services/tests/uiservicestests/src/com/android/server/notification/NotificationManagerServiceTest.java b/services/tests/uiservicestests/src/com/android/server/notification/NotificationManagerServiceTest.java
index f3a9ef1eb63e..34550bb52a52 100755
--- a/services/tests/uiservicestests/src/com/android/server/notification/NotificationManagerServiceTest.java
+++ b/services/tests/uiservicestests/src/com/android/server/notification/NotificationManagerServiceTest.java
@@ -2403,6 +2403,34 @@ public class NotificationManagerServiceTest extends UiServiceTestCase {
any(), anyInt(), anyBoolean(), anyBoolean());
}
+ @Test
+ public void testSetListenerAccessForUser_grantWithNameTooLong_throws() throws Exception {
+ UserHandle user = UserHandle.of(mContext.getUserId() + 10);
+ ComponentName c = new ComponentName("com.example.package",
+ com.google.common.base.Strings.repeat("Blah", 150));
+
+ try {
+ mBinderService.setNotificationListenerAccessGrantedForUser(c, user.getIdentifier(),
+ /* enabled= */ true);
+ fail("Should've thrown IllegalArgumentException");
+ } catch (IllegalArgumentException e) {
+ // Good!
+ }
+ }
+
+ @Test
+ public void testSetListenerAccessForUser_revokeWithNameTooLong_okay() throws Exception {
+ UserHandle user = UserHandle.of(mContext.getUserId() + 10);
+ ComponentName c = new ComponentName("com.example.package",
+ com.google.common.base.Strings.repeat("Blah", 150));
+
+ mBinderService.setNotificationListenerAccessGrantedForUser(
+ c, user.getIdentifier(), /* enabled= */ false);
+
+ verify(mListeners).setPackageOrComponentEnabled(
+ c.flattenToString(), user.getIdentifier(), true, /* enabled= */ false);
+ }
+
@Test
public void testSetAssistantAccessForUser() throws Exception {
UserHandle user = UserHandle.of(10);