[Bug 427863] Re: binfmt allows breaking out of chroots due to not respecting namespaces

[Oliver Grawert]

well, my chroot is run inside qemu userspace emulation and it tries to
execute a mono binary, i wonder if either influences this.

could you try with qemu-arm-static and using the build-arm-chroot to create your chroot env ? 
it might not be binfmt itself being at fault but the mono interpreter or the detector ...

ogra at osiris:~$ cat /usr/share/binfmts/cli 
package mono-common
detector /usr/lib/cli/binfmt-detector-cli
interpreter /usr/bin/cli
magic MZ

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binfmt allows breaking out of chroots due to not respecting namespaces
https://bugs.launchpad.net/bugs/427863
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