OpenBSD Errata: April 21st, 2018 (arp)

Errata patches for the kernel's Address Resolution Protocol implementation
have been released for OpenBSD 6.3.

ARP replies could be sent on the wrong member of a bridge(4) interface.

Binary updates for the amd64, i386, and arm64 platforms are available via
the syspatch utility. Source code patches can be found on the errata page:

  https://www.openbsd.org/errata63.html

As this affects the kernel, a reboot will be needed after patching.