John Baldwin ae95396817 Check that the frame pointer is within the current stack.
This same check is used on other architectures.  Previously this would
permit a stack frame to unwind into any arbitrary kernel address
(including unmapped addresses).

Reviewed by:	andrew, markj
Obtained from:	CheriBSD
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D27362
2020-12-08 18:00:58 +00:00
..
2020-10-13 02:36:16 +00:00