K 10
svn:author
V 3
jhb
K 8
svn:date
V 27
2020-04-21T17:40:23.015220Z
K 7
svn:log
V 265
Check the magic value in longjmp() before calling sigprocmask().

This avoids passing garbage to sigprocmask() if the jump buffer is
invalid.

Reviewed by:	mhorne
Obtained from:	CheriBSD
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D24483

END