The helper bpf_get_current_pid_tgid returns wrong PID for process in container

Steps:
1) Run https://github.com/Alan-Jowett/connection_tracker/
2) Run curl 1.1.1.1 from within a Windows isolated container

Expected result:
Shows the PID of the process doing the curl.

Actual result:
PID shows up as 4 (aka system).

Start by running the linked connection_tracker reproduction and issuing curl from a Windows isolated container. Trace where bpf_get_current_pid_tgid is handled for that process and compare the reported PID with the curl process. Done means the helper reports the calling process PID instead of 4 in this scenario.

Written by the indexing model from the issue text.