diff --git a/lib/metadata/vdo_manip.c b/lib/metadata/vdo_manip.c
index d7b63ecf0..1716e29cc 100644
--- a/lib/metadata/vdo_manip.c
+++ b/lib/metadata/vdo_manip.c
@@ -196,6 +196,7 @@ int parse_vdo_pool_status(struct dm_pool *mem, const struct logical_volume *vdo_
 {
 	struct dm_vdo_status_parse_result result;
 	char *dm_name;
+	uint64_t blocks;
 
 	status->usage = DM_PERCENT_INVALID;
 	status->saving = DM_PERCENT_INVALID;
@@ -227,7 +228,9 @@ int parse_vdo_pool_status(struct dm_pool *mem, const struct logical_volume *vdo_
 						result.status->total_blocks);
 		status->saving = dm_make_percent(status->logical_blocks_used - status->data_blocks_used,
 						 status->logical_blocks_used);
-		status->data_usage = dm_make_percent(status->data_blocks_used * DM_VDO_BLOCK_SIZE,
+		/* coverity needs to use a local variable to handle check here */
+		status->data_usage = dm_make_percent(((blocks = status->data_blocks_used) < (ULLONG_MAX / DM_VDO_BLOCK_SIZE)) ?
+						     (blocks * DM_VDO_BLOCK_SIZE) : ULLONG_MAX,
 						     first_seg(vdo_pool_lv)->vdo_pool_virtual_extents *
 						     (uint64_t) vdo_pool_lv->vg->extent_size);
 	}
diff --git a/lib/mm/memlock.c b/lib/mm/memlock.c
index a2f491426..735cda8eb 100644
--- a/lib/mm/memlock.c
+++ b/lib/mm/memlock.c
@@ -364,7 +364,7 @@ static int _memlock_maps(struct cmd_context *cmd, lvmlock_t lock, size_t *mstats
 		for (len = 0 ; len < _maps_len; len += n) {
 			if (!(n = read(_maps_fd, _maps_buffer + len, _maps_len - len)))
 				break; /* EOF */
-			if (n == -1) {
+			if ((n < 0) || (len >= (SSIZE_MAX - n))) {
 				log_sys_debug("read", _procselfmaps);
 				return 0;
 			}
diff --git a/libdm/libdm-stats.c b/libdm/libdm-stats.c
index 796d1b2be..ad74fb881 100644
--- a/libdm/libdm-stats.c
+++ b/libdm/libdm-stats.c
@@ -1444,7 +1444,8 @@ static void _stats_walk_next_present(const struct dm_stats *dms,
 	}
 
 	/* advance to next present, non-skipped region or end */
-	while (++(*cur_r) <= dms->max_region) {
+	while ((*cur_r < UINT64_MAX) &&
+	       ++(*cur_r) <= dms->max_region) {
 		cur = &dms->regions[*cur_r];
 		if (!_stats_region_present(cur))
 			continue;