This is not the first time that security patches have caused eBPF to behave oddly: https://blog.cloudflare.com/ebpf-cant-count/ https://blog.cloudflare.com/ebpf

This is not the first time that security patches have caused eBPF to behave oddly: https://blog.cloudflare.com/ebpf-cant-count/ https://blog.cloudflare.com/ebpf-cant-count/ is an amazing anecdote about how side-channel mitigations + a bug in the BPF verifier caused arithmetic bugs to appear. I hope that by the time things begin to hit mainline, Cloudflare's engineers will chime in with ideas that allow (e)BPF to continue to run, as they seem to use it widely internally.