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38 lines
1.8 KiB
Diff
38 lines
1.8 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Yi-an Chen <theianchen@google.com>
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Date: Tue, 23 Apr 2024 21:53:02 +0000
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Subject: [PATCH] Fix security vulnerability of non-dynamic permission removal
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The original removePermission() code in PermissionManagerService
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missed a logical negation operator when handling non-dynamic
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permissions, causing both
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testPermissionPermission_nonDynamicPermission_permissionUnchanged and
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testRemovePermission_dynamicPermission_permissionRemoved tests in
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DynamicPermissionsTest to fail.
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The corresponding test DynamicPermissionsTest is also updated in the
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other CL: ag/27073864
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Bug: 321711213
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Test: DynamicPermissionsTest on sc-dev and tm-dev locally
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(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:35d77a77feef62dc108f6478cb9228cc6044f70d)
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Merged-In: Id573b75cdcfce3a1df5731ffb00c4228c513e686
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Change-Id: Id573b75cdcfce3a1df5731ffb00c4228c513e686
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---
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.../android/server/pm/permission/PermissionManagerService.java | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/services/core/java/com/android/server/pm/permission/PermissionManagerService.java b/services/core/java/com/android/server/pm/permission/PermissionManagerService.java
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index eb27a13523ba..53164c7424d5 100644
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--- a/services/core/java/com/android/server/pm/permission/PermissionManagerService.java
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+++ b/services/core/java/com/android/server/pm/permission/PermissionManagerService.java
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@@ -641,7 +641,7 @@ public class PermissionManagerService extends IPermissionManager.Stub {
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if (bp == null) {
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return;
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}
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- if (bp.isDynamic()) {
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+ if (!bp.isDynamic()) {
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// TODO: switch this back to SecurityException
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Slog.wtf(TAG, "Not allowed to modify non-dynamic permission "
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+ permName);
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