We should backport a workaround for a future Linux userspace ABI change, where the msg_flags struct msghdr member is no longer ignored by sendmmsg.
Author: Florian Weimer <email@example.com>
Date: Mon Apr 9 10:08:07 2018 +0200
resolv: Fully initialize struct mmsghdr in send_dg [BZ #23037]
Verified, SanityOnly, the patch was successfully applied
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.