Android/frameworks_base
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Public volumes belong to a single user.

Browse Source 
When a public (vfat) device is inserted, it's strongly associated
with the current foreground user, and no other users should be able
to access it, since otherwise that would be a cross-user data leak.

To use the device under a different user, switch users and then
eject/remount the device.

Test: verified user isolation of USB drive
Bug: 32523490
Change-Id: I590c791996f1fea8d78f625dc942d149f1f41614
This commit is contained in:
Jeff Sharkey
2016-10-31 14:33:49 -06:00
committed by Jeff Sharkey
parent e97969b4d0
commit 8b38d083c4
1 changed files with 2 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
packages/ExternalStorageProvider/src/com/android/externalstorage/ExternalStorageProvider.java
View File

@@ -161,7 +161,8 @@ public class ExternalStorageProvider extends DocumentsProvider {
final VolumeInfo privateVol = mStorageManager.findPrivateForEmulated(volume); final VolumeInfo privateVol = mStorageManager.findPrivateForEmulated(volume);
title = mStorageManager.getBestVolumeDescription(privateVol); title = mStorageManager.getBestVolumeDescription(privateVol);
} }
} else if (volume.getType() == VolumeInfo.TYPE_PUBLIC) { } else if (volume.getType() == VolumeInfo.TYPE_PUBLIC
&& volume.getMountUserId() == userId) {
rootId = volume.getFsUuid(); rootId = volume.getFsUuid();
title = mStorageManager.getBestVolumeDescription(volume); title = mStorageManager.getBestVolumeDescription(volume);
} else { } else {