D31170.diff
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	diff --git a/sys/geom/eli/g_eli_integrity.c b/sys/geom/eli/g_eli_integrity.c
	--- a/sys/geom/eli/g_eli_integrity.c
	+++ b/sys/geom/eli/g_eli_integrity.c
	@@ -515,6 +515,17 @@
	if (bp->bio_cmd == BIO_WRITE)
	memset(data + sc->sc_alen + data_secsize, 0,
	encr_secsize - sc->sc_alen - data_secsize);
	+ } else if (data_secsize + sc->sc_alen != encr_secsize) {
	+ /*
	+ * If the HMAC size is not a multiple of 128 bits, the
	+ * per-sector data size is rounded down to ensure that
	+ * encryption can be performed without requiring any
	+ * padding. In this case, each sector contains unused
	+ * bytes.
	+ */
	+ if (bp->bio_cmd == BIO_WRITE)
	+ memset(data + sc->sc_alen + data_secsize, 0,
	+ encr_secsize - sc->sc_alen - data_secsize);
	}

	if (bp->bio_cmd == BIO_WRITE) {