MFS12 r341490, r341493:

r341490 (markj):

MFC r341442, r341443:
Plug memory disclosures via ptrace(2).

r341493 (garga):

MFC r341464:
Restore /var/crash permissions to 0750, as declared in mtree file.
After r337337 it changed to 0755.

As this would have otherwise been resolved as a post-release EN/SA
from so@, this does not warrant adding RC4 to the 12.0 schedule.

Approved by: re (implicit), so
Sponsored by: The FreeBSD Foundation