Re: Suggested Patch is not working for 22851 Bugzilla issue
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From: Linus Torvalds <torvalds@linux-foundation.org>
Date: 2019-11-20 19:46:22
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On Wed, Nov 20, 2019 at 10:39 AM Kees Cook [off-list ref] wrote:
Yes, as Michal mentions, there were legitimate binaries that expected to overlap mappings
I'm not sure they were really overlapping as much as "the ELF sections
were in a bad order and we don't do the whole "optimize loading"
thing.
It's one of those things that *might* be fixed by first creating a
"simplified/combined map of the ELF sections", and them using mmap()
on that simplified one. But that code is nasty and hairy.
Linus