[PATCH] Allow exec on 32-bit from readable, non-exec pages, with a warning.
arnd at arndb.de
Tue Jul 10 06:25:24 EST 2007
On Monday 09 July 2007, Scott Wood wrote:
> In older versions of glibc (through 2.3), the dynamic linker executes a
> small amount of code from the data segment, which is not marked as
> executable. A recent change (commit 9ba4ace39fdfe22268daca9f28c5df384ae462cf)
> stops this from working; there should be a deprecation period before
> older glibc versions stop working.
> The problem has been observed on glibc 2.2. While glibc 2.3 has the same
> code, I did not see the problem; it may be that it accesses the page in
> question as data before executing from it, and thus it is already mapped.
I may be missing the obvious, but doesn't that defeat the purpose of
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