https://bugs.exim.org/show_bug.cgi?id=2455
Bug ID: 2455
Summary: pcre.jit don't work in PHP and nginx with
--enable-jit-sealloc and noexec flag in /tmp and
/var/tmp
Product: PCRE
Version: 10.33 (PCRE2)
Hardware: x86
OS: Linux
Status: NEW
Severity: bug
Priority: medium
Component: Code
Assignee: p...@hermes.cam.ac.uk
Reporter: i...@ilya.pp.ua
CC: pcre-dev@exim.org
In PHP and nginx (probably in all other applications) don't work pcre.jit if
pcre compile with --enable-jit-sealloc and /tmp and /var/tmp mount with noexec
flag. (old server security practice).
Details are set out in this report, and there are also links to strace.
https://bugs.php.net/bug.php?id=78630
I believe that /tmp and /var/tmp directories are not intended for creating and
executing JIT code, but for this the (/var)/run directory is intended and just
in time code should be executed in it.
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