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Add a check for the new JIT #29

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Add a check for the new JIT #29

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jvoisin
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@jvoisin jvoisin commented Jul 23, 2020

See https://wiki.php.net/rfc/jit for reference

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bef commented Aug 8, 2021

Can you elaborate on how JIT may affect the security? Are there any known vulnerabilities in connection with opcache.jit?

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jvoisin commented Aug 10, 2021

Same answer as in #21

PHP's JIT is allocating a RWX memory area, weakening "Executable space protection" and making it easier to exploit memory corruption without resorting to ROP.

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@jvoisin @bef