The userid and groupid are "strange" in my home

General
#1

I noticed this, the userid and groupid are missing:

drwxrwx---   18 501023   appsuppo      4096 Jun 15 18:35 android_storage

[root@sfos defaultuser]# ls -al android_storage
total 144
drwxrwx---   18 501023   appsuppo      4096 Jun 15 18:35 .
drwxr-x---   20 defaultu defaultu      4096 Jun 21 17:18 ..
drwxrwx---    4 510036   510036        4096 Jun 13 23:59 .here-maps
-rw-rwxr--    1 root     root             6 Jun  6 13:30 .privilege_migration_done
-rw-rw----    1 root     root             0 Jun  6 13:30 .storage_migration_done
drwxrwx---    2 510036   510036        4096 Jun  1 14:00 Alarms
drwxrws--x    5 501023   appsuppo      4096 Jun  1 14:00 Android
drwxrwx---    2 510036   510036        4096 Jun  1 14:00 Audiobooks
drwxrwx---    4 510036   510036        4096 Jun  7 19:20 Aurora
drwxrwx---    5 510036   510036        4096 Jun 12 05:13 DCIM
drwxrwx---    2 510036   510036        4096 Jun 20 17:28 Documents
drwxrwx---    6 510036   510036        4096 Jun 18 13:11 Download
drwxrwx---    3 510036   510036        4096 Jun  1 14:00 Movies
drwxrwx---    3 510036   510036        4096 Jun  1 14:00 Music
drwxrwx---    2 510036   510036        4096 Jun  1 14:00 Notifications
drwxrwx---    4 510036   510036        4096 Jun  9 06:37 Pictures
drwxrwx---    2 510036   510036        4096 Jun  1 14:00 Podcasts
drwxrwx---    2 510036   510036        4096 Jun  1 14:00 Ringtones
drwxrwx---    2 510036   510036        4096 Jun  9 07:23 Seekers
drwxrwx---    2 510036   510036        4096 Jun 12 05:08 panoramas

Is this normal, I mean also in yours 4.5.0.19? I do not think so.

#2

It looks perfectly normal for systems making use of cgroups uid/gid translations. I never owned a device with the “new style” Android App Support myself, but AFAIR, this is exactly how it is implemented (and the very reason why Xperia X with older kernels doesn’t support this feature).

So nothing to worry about. It’s a security feature, after all; think “privilege separation”.

2 Likes
#3

Hey baby, tell older to another kernel, this one

Linux sfos 4.14.264 #1 SMP PREEMPT Mon Feb 13 16:33:56 UTC 2023 aarch64 GNU/Linux

is just mature enough to meet its EOL today:

  • longterm: 4.14.319 2023-06-21

Seasoned like a great scotch wiskey! :grin: