apparmor: add signal and ptrace rules for stacked profiles#919
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With AppArmor 5.0+ (Ubuntu 25.10+), child processes inside containers get stacked profiles (e.g. containers-default//&crun). The existing signal and ptrace peer rules only match the base profile name, causing DENIED audit events that break systemd-based containers. Add //&* wildcard rules for signal and ptrace to match any stacked profile peer. Signed-off-by: Ayato Tokubi <atokubi@redhat.com> Assisted-by: Claude Code <https://claude.com/claude-code>
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With AppArmor 5.0+, child processes get stacked profiles like profile//&crun. Add //&* wildcard rules for signal and ptrace to match stacked profile peers.
This is a reproducer.
https://gist.github.com/bitoku/6fe0dd11aed0e4dad31eb0171c49279f
This will fix cri-o/cri-o#10036 .
Assisted-by: Claude Code https://claude.com/claude-code