Seccomp Syscall: pidfd_open

Hi

Our snap invokes a syscall pidfd_open which is blocked. I tried to add various interfaces in hope there is one which allows the call, but no luck. How can I allow this syscall?

OS: Ubuntu 24.04 LTS snapd: v2.72, also tried v2.73 beta

snappy-debug says:

= Seccomp =
Time: 2025-12-12T08:3
Log: auid=4294967295 uid=0 gid=0 ses=4294967295 subj=snap.vms-ge4.daemon pid=3352 comm="ruby" exe="/snap/vms-ge4/x10/usr/bin/ruby" sig=0 arch=c000003e 434(pidfd_open) compat=0 ip=0x7532758ee28d code=0x50000
Syscall: pidfd_open

Any help is appreciated.

It would be nice if this could be solved with the release of v2.73.