Files
react-native/packages
antFranconandFacebook GitHub Bot 6aeca53b3e fix(android): Prevent ArrayIndexOutOfBoundsException in permission check (#47047)
Summary:
This PR addresses a potential `ArrayIndexOutOfBoundsException` in the Android module's permission checking logic.

```diff
- results.length > 0 && results[j] == PackageManager.PERMISSION_GRANTED
+ results.length > j && results[j] == PackageManager.PERMISSION_GRANTED
```

It ensures that we only access the results array when the index `j` is within bounds, preventing crashes due to invalid array access that have been occurring in the production environment.

Here is the Crashlytics dashboard concerning this type of crash on my app last week (react-native 0.75.4 - old arch):
![image](https://github.com/user-attachments/assets/0b7c1a10-39f6-4a17-9eee-4b17986f5b85)

## Changelog:

[ANDROID] [FIXED] - Prevent ArrayIndexOutOfBoundsException in permission check

Pull Request resolved: https://github.com/facebook/react-native/pull/47047

Test Plan:
1. Verify normal permission request scenarios still work on Android:
   - Request a permission (e.g., camera, location)
   - Grant the permission
   - Verify the app functions correctly with the granted permission

2. Monitor production crash reports:
   - Deploy the fix to production
   - Observe a decrease in ArrayIndexOutOfBoundsException occurrences in the permission check logic

Note: As this crash was only observed in production, we'll rely on production monitoring to verify the fix's effectiveness over time.

Reviewed By: rshest

Differential Revision: D64464171

Pulled By: cortinico

fbshipit-source-id: 87beacf7ee749a51665577d05a56cc8d6889d70f
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