Filesystem vanishes in VIM4 1.7.5 kernel

VIM4
1

Which system do you use? Android, Ubuntu, OOWOW or others?

Ubuntu Server on VIM4 NP

Which version of system do you use? Please provide the version of the system here:

vim4-ubuntu-24.04-server-linux-5.15-fenix-1.7.5-250925

Please describe your issue below:

If I run a large java program that accesses the camera and 5g modem (as a normal user) the filesystem is erased after a short time. Then the system can’t reboot.

This does not happen with the 1.7.4 kernel version (even fully updated updates).
I tried newer and older java versions.

Have the filesystem drivers changed somehow? Does running a single large program confuse the kernel somehow?

Post a console log of your issue below:

I can’t get the console log but here is a screenshot of the boot failing.

260b07a0-98ba-4458-9df0-b5c02595a5c7
260b07a0-98ba-4458-9df0-b5c02595a5c71802×1352 272 KB

2

Hello @steely-glint

Could you tell us how to reproduce this issue? Could you provide the test program and steps to us?

3

I will see if I can narrow it down to a simple test case. There are quite a lot of requirements in the current config (modem, camera, jam, java etc).

1 Like
4

It looks like the problem is that 1.7.5 exposed adbd on 5555 to the world.
So probably it got drive-by hacked. 1.7.4 does not have adbd running by default.

5

@numbqq I guess you can reproduce it by connecting a vim4 to the internet with tcp 5555 not firewalled or NATed (eg on a 5g modem with ipv6 support). No camera or java needed I think.

6

Yes, you are right.

So if you disable this port, do you still the the issue?

7

@numbqq I’ve had one running behind NAT for 24 hours now and it has not lost any files.

I can’t find a way to disable the port - it doesn’t seem to be started by systemd (I couldn’t find it) and I couldn’t apt-get remove it either.

What is the best way to stop adbd from running (I don’t want it on production devices)?

8

You can disable it:

sudo systemctl disable usb-gadget-khadas.service

And you can edit /usr/local/bin/usb-gadget to remove export ADB_TCP_PORT=5555 to disable the ADB_TCP_PORT.

9

I’m uncomfortable with this defaulting to on - especially for IPV6 - perhaps it should be off?

10

Yes, just disable it .

11

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