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bug#30918: Don't use syscall() to call renameat2()

From: Clint Adams
Subject: bug#30918: Don't use syscall() to call renameat2()
Date: Sat, 24 Mar 2018 21:00:24 +0000
User-agent: NeoMutt/20170113 (1.7.2)

On Fri, Mar 23, 2018 at 12:02:36PM -0700, Paul Eggert wrote:
> That would reintroduce race-condition security holes in the ordinary build
> of GNU Coreutils on GNU/Linux, which would not be a good thing. Instead, how
> about fixing fakeroot so that it traps 'syscall' and fails with errno ==
> ENOTSUP? Better yet, fix fakeroot so that it implements the renameat2
> semantics with that syscall. (Or even better, add renameat2 to both glibc
> and fakeroot. :-)

What's keeping it out of glibc?

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