[LTP] CVE-2020-29373 reproducer fails on v5.11

[Petr Vorel]

Hi Jens, Pavel,

> On 2/10/21 12:32 PM, Pavel Begunkov wrote:
> > On 10/02/2021 19:08, Petr Vorel wrote:
> >> Hi all,

> >> I found that the reproducer for CVE-2020-29373 from Nicolai Stange (source attached),
> >> which was backported to LTP as io_uring02 by Martin Doucha [1] is failing since
> >> 10cad2c40dcb ("io_uring: don't take fs for recvmsg/sendmsg") from v5.11-rc1.

> > Thanks for letting us know, we need to revert it

> I'll queue up a revert. Would also be nice to turn that into
> a liburing regression test.
Thanks a lot for a quick feedback and fix!

Kind regards,
Petr