OpenBSD Errata: October 6th, 2020 (mmap)

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OpenBSD Errata: October 6th, 2020 (mmap)

T.J. Townsend
Errata patches for the kernel have been released for OpenBSD 6.7.

mmap can exhaust kernel memory for PROT_NONE MAP_SHARED mappings.

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/errata67.html

As these affect the kernel, a reboot will be needed after patching.