On Sun, Jun 17, 2018 at 09:29:48AM -0400, T.J. Townsend wrote: > Errata patches for x86 floating-point units have been released for OpenBSD > 6.3. > > Intel CPUs speculatively access FPU registers even when the FPU is disabled, > so data (including AES keys) from previous contexts could be discovered if > using the lazy-save approach. > > Binary updates for the amd64 platform 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. >
Errata patches and binary updates for this issue are now also available for OpenBSD 6.2/amd64: https://www.openbsd.org/errata62.html
