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| author | Abodunrinwa Toki <toki@google.com> | 2019-07-01 19:41:44 +0100 |
|---|---|---|
| committer | Abodunrinwa Toki <toki@google.com> | 2019-07-08 15:16:19 +0100 |
| commit | e8492693c234853c76d19531dabea3aaa41970f3 (patch) | |
| tree | 3346a787b877e6213d4d5548709f08494b302fcb /rs/java/android/renderscript/ProgramVertexFixedFunction.java | |
| parent | d6f8273add3ddfc9bf5aae45f0d826a2749a6a98 (diff) | |
TextClassifier cross-user vulnerability in direct-reply
Sys UI runs on user 0. This can lead to the TextClassifier (TC)
running for the wrong user. Consequencies are user A can launch apps
in user B via the TC's predicted actions and selected text being
unintentionally shared from user A to an app running in user B.
This fix ensures that the correct user id is passed and verified for
every TC request going across process boundaries (i.e. via SystemTC).
- Sys UI sets the appropriate user id in the TextView
- TextClassificationManager (TCM) system service is constructed using
a context generated from this user id
- SystemTC sets this user id before querying the TCMService
- TCMService validates the user id before forwarding the request to
the TCService belonging to that user id.
Bug: 136483597
Test: atest android.view.textclassifier
atest android.widget.TextViewActivityTest
(manual) Verified according to steps in bug 123232892
Change-Id: I2fdffd8eb4221782cb1f34d2ddbe41dd3d36595c
Diffstat (limited to 'rs/java/android/renderscript/ProgramVertexFixedFunction.java')
0 files changed, 0 insertions, 0 deletions