K 10
svn:author
V 3
jtl
K 8
svn:date
V 27
2018-11-16T18:32:48.987478Z
K 7
svn:log
V 408
Add some additional length checks to the IPv4 fragmentation code.

Specifically, block 0-length fragments, even when the MF bit is clear.
Also, ensure that every fragment with the MF bit clear ends at the same
offset and that no subsequently-received fragments exceed that offset.

Reviewed by:	glebius, markj
MFC after:	3 days
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D17922

END