Limit the memory size used by the jailed process

[vporton]

We need to limit the memory size used by the jailed process, so that a hacked would not run out of memory and swap.

[reinerh]

ulimit?

[vporton]

On Fri, 2016-06-24 at 10:02 -0700, Reiner Herrmann wrote:

ulimit?

I am aware about ulimit, but this will be probably a little more
efficient with single firejail executable than running ulimit firejail composed from two commands.

[reinerh]

It's probably a bit more convenient, I agree, but duplicating functionality already provided by other means also increases the complexity of firejail.

[chiraag-nataraj]

Another way is to assign the process to a cgroup and set limits on the cgroup (which you might be able to do in a config file somewhere).

[netblue30]

Yes, cgroup is the way to go. Set up a control group and pass it to the sandbox using --cgroup.