FreeBSD/src a070559 (r344234)stand/libsa/zfs zfs.c

It turns out r344226 narrowed the overrun bug but did not eliminate it entirely

This commit fixes a remaining output buffer overrun in the
single-sector case when there is a non-zero tail.

Reviewed by:    allanjude, tsoome
MFC after:      3 months
MFC with:       r344226
Differential Revision:  https://reviews.freebsd.org/D19220
DeltaFile
+2-2stand/libsa/zfs/zfs.c
+2-21 files

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