K 10
svn:author
V 2
kp
K 8
svn:date
V 27
2018-01-23T04:30:46.233894Z
K 7
svn:log
V 580
MFC r327675

pf: Avoid integer overflow issues by using mallocarray() iso. malloc()

pfioctl() handles several ioctl that takes variable length input, these
include:
- DIOCRADDTABLES
- DIOCRDELTABLES
- DIOCRGETTABLES
- DIOCRGETTSTATS
- DIOCRCLRTSTATS
- DIOCRSETTFLAGS

All of them take a pfioc_table struct as input from userland. One of
its elements (pfrio_size) is used in a buffer length calculation.
The calculation contains an integer overflow which if triggered can lead
to out of bound reads and writes later on.

Reported by:	Ilja Van Sprundel <ivansprundel@ioactive.com>

END