Messages in this thread | | | From | Linus Torvalds <> | Date | Wed, 16 Jan 2019 17:34:01 +1200 | Subject | Re: [PATCH] mm/mincore: allow for making sys_mincore() privileged |
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On Wed, Jan 16, 2019 at 5:25 PM Andy Lutomirski <luto@amacapital.net> wrote: > > Something like CAP_DAC_READ_SEARCH might not be crazy.
I agree that it would work. In fact' it's what Jiri's patch basically did. Except Jiri used CAP_SYS_ADMIN instead.
But that then basically limits it to root (or root-like with capability masks), which is quite likely to not work in practice all that well. That's why I wanted to find alternatives.
*Very* few people want to run their databases as root.
Jiri's original patch kind of acknowledged that by making the new test be conditional, and off by default. So then it's a "only do this for lockdown mode, because normal people won't find it acceptable".
And I'm not a huge fan of that approach. If you don't protect normal people, then what's the point, really?
Linus
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