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Do AppArmor and Flatpak have any weird interactions? (self.linux)

submitted 2 weeks ago by DeltaWingDragon to c/linux

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I'm trying to generate AppArmor policies to secure my "major/internet-facing" programs.
Most of those programs are Flatpaks.
Flatpaks already have their own sandboxing mechanism, which uses bwrap and XDG portals.
Does AppArmor have any weird interactions with Flatpak, e. g. blocking too much, or blocking too little, or being unable to block anything without rendering the whole program unusable?

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[–] [email protected] 1 points 5 days ago

Oh I understand now, you're referring to making AppArmor profiles to target a specific app. I just did a little research and it's possible to create AppArmor policies for binaries that are in a user's home folder.

Rather than hardcoding a specific user's home, you can instead say "@{HOME}". So you could create a profile for "@{HOME}/.local/share/flatpak/app/appID/current/active/files/bin/binaryName" that would confine the app for all users.