hexchat (all versions) is unsound (use-after-free)

[SoniEx2]

The hexchat crate has register_command and deregister_command functions. When used together, they can cause an use-after-free. This seems to be the case with most if not all of the callback-related functions.

Additionally, the crate seems to be no longer maintained.

[jorgecarleitao]

Linking to relevant issue, pie-flavor/hexchat-rs#1

[pinkforest]

Would be keen to get this ticket and #913 dealt with

I've pinged the maintainer and asked if the crate should be used here - pie-flavor/hexchat-rs#2

[pinkforest]

@SoniEx2 would you like to send informational = "unmaintained" PR and describe these soundness issues alongside

It should deal with both this and #913 but we could just flag one unmaintained that contains the soundness issues

Cheers