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newkeys
2017 Apr 06
5
[Bug 2704] New: Avoid passing pointers between processes
...Priority: P5
Component: sshd
Assignee: unassigned-bugs at mindrot.org
Reporter: brooks at freebsd.org
Created attachment 2972
--> https://bugzilla.mindrot.org/attachment.cgi?id=2972&action=edit
Patch to pass ciphers by name rather than by virtual address
The newkeys_(from|to)_blob() functions currently pass a pointer to the
static cipher structure between processes. This works as long as
pointers are opaque integer data. With upcoming pointer integrity
schemes such as CHERI (which ensures pointer derivations are valid with
hardware tags) this no longer works...