Re: [PATCH v3 3/3] mm/usercopy: Detect compound page overruns

Kees Cook
2021-12-13T20:52:46Z

On Mon, Dec 13, 2021 at 02:27:03PM +0000, Matthew Wilcox (Oracle) wrote:
> Move the compound page overrun detection out of
> CONFIG_HARDENED_USERCOPY_PAGESPAN so it's enabled for more people.

I'd argue that everything else enabled by USERCOPY_PAGESPAN could be
removed now too. Do you want to add a 4th patch to rip that out?

https://github.com/KSPP/linux/issues/163

Thanks!

-Kees

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Kees Cook