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44 lines
2.2 KiB
Diff
44 lines
2.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Pranav Madapurmath <pmadapurmath@google.com>
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Date: Tue, 11 Jun 2024 15:51:39 +0000
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Subject: [PATCH] Unbind CallScreeningService when timeout reached.
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In a vulnerability, the exploiter showed that an app which implements a
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service with role holding ROLE_CALL_SCREENING can be used to keep a
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service alive. The assumption is that the CallScreeningService class
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uses MSG_SCREEN_CALL to screen the call and results in the service being
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unbound for outgoing calls once screening completes. However, a vanilla
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service which holds the ROLE_CALL_SCREENING role can still be used as
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the default call screening app which keeps the service alive.
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This CL ensures that after the timeout is reached that we try to unbind
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the service if possible.
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Bug: 300904123
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Test: Manual test to verify that onDestroy is called for the service
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after the timeout is reached.
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(cherry picked from commit 9d97cd5825066ac8e15bbf97f6755663c5341afb)
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(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:d57f25311acb7fb887fb0296364526345cc905bb)
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Merged-In: I30d276867c571ece113106d3b363fce99d64f441
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Change-Id: I30d276867c571ece113106d3b363fce99d64f441
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---
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.../android/server/telecom/CallScreeningServiceHelper.java | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/src/com/android/server/telecom/CallScreeningServiceHelper.java b/src/com/android/server/telecom/CallScreeningServiceHelper.java
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index 89778e43a..5582a7da4 100644
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--- a/src/com/android/server/telecom/CallScreeningServiceHelper.java
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+++ b/src/com/android/server/telecom/CallScreeningServiceHelper.java
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@@ -185,6 +185,10 @@ public class CallScreeningServiceHelper {
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Log.w(TAG, "Cancelling call id process due to timeout");
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}
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mFuture.complete(null);
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+ mContext.unbindService(serviceConnection);
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+ } catch (IllegalArgumentException e) {
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+ Log.i(this, "Exception when unbinding service %s : %s", serviceConnection,
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+ e.getMessage());
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} finally {
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Log.endSession();
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}
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