K 10
svn:author
V 2
kp
K 8
svn:date
V 27
2020-04-17T14:35:11.309331Z
K 7
svn:log
V 390
pf: Do not allow negative ps_len in DIOCGETSTATES

Userspace may pass a negative ps_len value to us, which causes an
assertion failure in malloc().
Treat negative values as zero, i.e. return the required size.

Reported-by:	syzbot+53370d9d0358ee2a059a@syzkaller.appspotmail.com
Reviewed by:	lutz at donnerhacke.de
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D24447

END