Kees Cook da029c11e6 exec: Limit arg stack to at most 75% of _STK_LIM ...

To avoid pathological stack usage or the need to special-case setuid
execs, just limit all arg stack usage to at most 75% of _STK_LIM (6MB).

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

2017-07-07 20:05:08 -07:00

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