DivestOS/Patches/LineageOS-17.1/android_frameworks_base/353946.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Hao Ke <haok@google.com>
Date: Mon, 12 Dec 2022 15:49:16 +0000
Subject: [PATCH] Fix checkKeyIntentParceledCorrectly's bypass
The checkKeyIntentParceledCorrectly method was added in checkKeyIntent, which was originaly only invoked when AccountManagerService deserializes the KEY_INTENT value as not NULL. However, due to the self-changing bundle technique in Parcel mismatch problems, the Intent value can change after reparceling; hence would bypass the added checkKeyIntentParceledCorrectly call.
This CL did the following:
- Ensure the checkKeyIntent method is also called when result.getParcelable(AccountManager.KEY_INTENT) == null.
Bug: 260567867
Bug: 262230405
Test: local test, see b/262230405
Test: atest CtsAccountManagerTestCases
Merged-In: I7b528f52c41767ae12731838fdd36aa26a8f3477
Change-Id: I7b528f52c41767ae12731838fdd36aa26a8f3477
(cherry picked from commit 9f623983a8d4ec48d58b0eda56fa461fc6748981)
Merged-In: I7b528f52c41767ae12731838fdd36aa26a8f3477
---
.../server/accounts/AccountManagerService.java | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/services/core/java/com/android/server/accounts/AccountManagerService.java b/services/core/java/com/android/server/accounts/AccountManagerService.java
index 58978a55a32a..b4edf94927b2 100644
--- a/services/core/java/com/android/server/accounts/AccountManagerService.java
+++ b/services/core/java/com/android/server/accounts/AccountManagerService.java
@@ -3434,8 +3434,7 @@ public class AccountManagerService
Bundle.setDefusable(result, true);
mNumResults++;
Intent intent = null;
- if (result != null
- && (intent = result.getParcelable(AccountManager.KEY_INTENT)) != null) {
+ if (result != null) {
if (!checkKeyIntent(
Binder.getCallingUid(),
result)) {
@@ -4800,8 +4799,10 @@ public class AccountManagerService
EventLog.writeEvent(0x534e4554, "250588548", authUid, "");
return false;
}
-
Intent intent = bundle.getParcelable(AccountManager.KEY_INTENT);
+ if (intent == null) {
+ return true;
+ }
// Explicitly set an empty ClipData to ensure that we don't offer to
// promote any Uris contained inside for granting purposes
if (intent.getClipData() == null) {
@@ -4854,7 +4855,10 @@ public class AccountManagerService
p.recycle();
Intent intent = bundle.getParcelable(AccountManager.KEY_INTENT);
Intent simulateIntent = simulateBundle.getParcelable(AccountManager.KEY_INTENT);
- return (intent.filterEquals(simulateIntent));
+ if (intent == null) {
+ return (simulateIntent == null);
+ }
+ return intent.filterEquals(simulateIntent);
}
private boolean isExportedSystemActivity(ActivityInfo activityInfo) {
@@ -4999,8 +5003,7 @@ public class AccountManagerService
}
}
}
- if (result != null
- && (intent = result.getParcelable(AccountManager.KEY_INTENT)) != null) {
+ if (result != null) {
if (!checkKeyIntent(
Binder.getCallingUid(),
result)) {