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

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Author: admin
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Old-Topics: [pcre-dev] [Bug 1749] New: PCRE-JITted code should be executed from non-writable memory to obey execmem SELinux restriction
Subject: [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 #22 from Zoltan Herczeg <hzmester@???> ---
> The error code is visible in the strace output I quoted in the comment #16.
> Return value is -1 and errno is EACCES. This failure is result of the
> SELinux policy that not only prevents from having RWX pages (previous code
> mmapped them), but also prevents from turning RW- pages into R-X pages
> (current code does the mprotect).


I am sorry, I haven't noticed it. Is it possible to turn RW- pages to R-- first
and then R-X?

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