Re: KASAN: use-after-free Read in configfs_composite_bind

[Rondreis]

Thanks for your reply! I ran the reproducer again on the master
branch(commit id: 7726d4c3e60bfe206738894267414a5f10510f1a) and it
didn't crash.

The reason for not using the latest version is I can't attach more
than one gadget at a time using `configfs` and `dummy_hcd`. When I
attach the second gadget with a different `udc` it always fails and
the kernel message says:

```
[ 1625.254858] Error: Driver 'configfs-gadget' is already registered,
aborting...
[ 1625.271018] UDC core: g1: driver registration failed: -16
```

I'm not sure if this is a new feature from version v5.19(v5.18, commit
id: 4b0986a3613c92f4ec1bdc7f60ec66fea135991f works very well) or a
potential bug, or my mistake...

The kernel config is: https://pastebin.com/raw/SLmNMMRd
The shell to attach gadgets is: https://pastebin.com/raw/2eDPNip3
The kernel log is: https://pastebin.com/raw/MaDwMQWk

Best wishes!
Rondreis