OpenBSD Errata: December 20th, 2018 (recvwait)
18 December, 2018 by email@example.com | openbsd
Errata patches for the kernel have been released for OpenBSD 6.3 and 6.4. While recv(2) with the MSG_WAITALL flag was receiving control messages from a socket, the kernel could panic. Binary updates for the amd64, i386, and arm64 platforms are available via the syspatch utility. Source code patches can be found on the respective errata page: https://www.openbsd.org/errata63.html https://www.openbsd.org/errata64.html As these affect the kernel, a reboot will be needed after patching.