[pcre-dev] [Bug 1749] PCRE-JITted code should be executed fr…

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Alte Treads: [pcre-dev] [Bug 1749] New: PCRE-JITted code should be executed from non-writable memory to obey execmem SELinux restriction
Betreff: [pcre-dev] [Bug 1749] PCRE-JITted code should be executed from non-writable memory to obey execmem SELinux restriction
https://bugs.exim.org/show_bug.cgi?id=1749

--- Comment #10 from Zoltan Herczeg <hzmester@???> ---
It seems the trick is mapping it twice:

> One is writeable, the other is executable.

So one thread can write a new code while another executes an existing pattern.

Next question: how can you allocate / deallocate 64K+ chunks of this file?

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