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34 lines
1.7 KiB
Diff
34 lines
1.7 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Kunal Malhotra <malhk@google.com>
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Date: Thu, 2 Feb 2023 23:48:27 +0000
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Subject: [PATCH] Adding in verification of calling UID in onShellCommand
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Test: manual testing on device
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Bug: b/261709193
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(cherry picked from commit b651d295b44eb82d664861b77f33dbde1bce9453)
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(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:3ef3f18ba3094c4cc4f954ba23d1da421f9ca8b0)
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Merged-In: I68903ebd6d3d85f4bc820b745e3233a448b62273
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Change-Id: I68903ebd6d3d85f4bc820b745e3233a448b62273
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---
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.../java/com/android/server/am/ActivityManagerService.java | 7 +++++++
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1 file changed, 7 insertions(+)
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diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
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index 6e1c913105aa..0bdc9531064e 100644
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--- a/services/core/java/com/android/server/am/ActivityManagerService.java
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+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
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@@ -15165,6 +15165,13 @@ public class ActivityManagerService extends IActivityManager.Stub
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public void onShellCommand(FileDescriptor in, FileDescriptor out,
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FileDescriptor err, String[] args, ShellCallback callback,
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ResultReceiver resultReceiver) {
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+ final int callingUid = Binder.getCallingUid();
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+ if (callingUid != ROOT_UID && callingUid != Process.SHELL_UID) {
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+ if (resultReceiver != null) {
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+ resultReceiver.send(-1, null);
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+ }
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+ throw new SecurityException("Shell commands are only callable by root or shell");
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+ }
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(new ActivityManagerShellCommand(this, false)).exec(
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this, in, out, err, args, callback, resultReceiver);
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}
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