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Re: [PATCH] fexecve

> All of a sudden, the very presence of those sockets means not just
> that a component A running in chroot Ca, with uid Ua, can pass _data_
> to a component B running in chroot Cb, with uid Ub -- which was part
> of the design -- but that it can enable B to run new code that was
> formerly not available at all in Cb (because all memory and
> filesystems available to processes in Cb are either read-only, or
> executable, but not both).

It always could, just not with exec()-family calls.  Did you read the
points you didn't quote about script interpreters and VMs?

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