can core_pattern be modified from privileged CT?

/proc/sys is mounted ro in privileged containers as well (protected by apparmor). that being said, unprivileged containers do offer more isolation and an additional barrier compared to privileged ones, see "Unprivileged Containers" and "Privileged Containers" in https://pve.proxmox.com/pve-docs/chapter-pct.html#pct_general
 
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