[PATCH v3 14/15] exec: Use sane stack rlimit under secureexec

On Tue, 18 Jul 2017, Kees Cook wrote:

For a secureexec, before memory layout selection has happened, reset the
stack rlimit to something sane to avoid the caller having control over
the resulting layouts.

$ ulimit -s
8192
$ ulimit -s unlimited
$ /bin/sh -c 'ulimit -s'
unlimited
$ sudo /bin/sh -c 'ulimit -s'
8192

Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Kees Cook <redacted>

Reviewed-by: James Morris <redacted>


-- 
James Morris
[off-list ref]

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