diff --git a/usr.sbin/bhyve/block_if.c b/usr.sbin/bhyve/block_if.c
index ffa343c0dd5e..b29bc7856e86 100644
--- a/usr.sbin/bhyve/block_if.c
+++ b/usr.sbin/bhyve/block_if.c
@@ -270,13 +270,12 @@ blockif_open(const char *optstr, const char *ident)
 		assert(sectsz != 0);
 	}
 
-	bc = malloc(sizeof(struct blockif_ctxt));
+	bc = calloc(1, sizeof(struct blockif_ctxt));
 	if (bc == NULL) {
 		close(fd);
 		return (NULL);
 	}
 
-	memset(bc, 0, sizeof(*bc));
 	bc->bc_magic = BLOCKIF_SIG;
 	bc->bc_fd = fd;
 	bc->bc_size = size;
diff --git a/usr.sbin/bhyve/mevent.c b/usr.sbin/bhyve/mevent.c
index 82faab2d245b..b83ec6904d63 100644
--- a/usr.sbin/bhyve/mevent.c
+++ b/usr.sbin/bhyve/mevent.c
@@ -268,12 +268,11 @@ mevent_add(int tfd, enum ev_type type,
 	/*
 	 * Allocate an entry, populate it, and add it to the change list.
 	 */
-	mevp = malloc(sizeof(struct mevent));
+	mevp = calloc(1, sizeof(struct mevent));
 	if (mevp == NULL) {
 		goto exit;
 	}
 
-	memset(mevp, 0, sizeof(struct mevent));
 	if (type == EVF_TIMER) {
 		mevp->me_msecs = tfd;
 		mevp->me_timid = mevent_timid++;
diff --git a/usr.sbin/bhyve/pci_ahci.c b/usr.sbin/bhyve/pci_ahci.c
index fb32bade1f71..3f9fc7f1c33c 100644
--- a/usr.sbin/bhyve/pci_ahci.c
+++ b/usr.sbin/bhyve/pci_ahci.c
@@ -1756,8 +1756,7 @@ pci_ahci_init(struct vmctx *ctx, struct pci_devinst *pi, char *opts, int atapi)
 	dbg = fopen("/tmp/log", "w+");
 #endif
 
-       	sc = malloc(sizeof(struct pci_ahci_softc));
-	memset(sc, 0, sizeof(struct pci_ahci_softc));
+	sc = calloc(1, sizeof(struct pci_ahci_softc));
 	pi->pi_arg = sc;
 	sc->asc_pi = pi;
 	sc->ports = MAX_PORTS;
diff --git a/usr.sbin/bhyve/pci_emul.c b/usr.sbin/bhyve/pci_emul.c
index 3c3188a9d4c1..c403233208cb 100644
--- a/usr.sbin/bhyve/pci_emul.c
+++ b/usr.sbin/bhyve/pci_emul.c
@@ -688,8 +688,7 @@ pci_emul_init(struct vmctx *ctx, struct pci_devemu *pde, int bus, int slot,
 	struct pci_devinst *pdi;
 	int err;
 
-	pdi = malloc(sizeof(struct pci_devinst));
-	bzero(pdi, sizeof(*pdi));
+	pdi = calloc(1, sizeof(struct pci_devinst));
 
 	pdi->pi_vmctx = ctx;
 	pdi->pi_bus = bus;
@@ -781,8 +780,7 @@ pci_msix_table_init(struct pci_devinst *pi, int table_entries)
 	assert(table_entries <= MAX_MSIX_TABLE_ENTRIES);
 
 	table_size = table_entries * MSIX_TABLE_ENTRY_SIZE;
-	pi->pi_msix.table = malloc(table_size);
-	bzero(pi->pi_msix.table, table_size);
+	pi->pi_msix.table = calloc(1, table_size);
 
 	/* set mask bit of vector control register */
 	for (i = 0; i < table_entries; i++)
@@ -1781,8 +1779,7 @@ pci_emul_dinit(struct vmctx *ctx, struct pci_devinst *pi, char *opts)
 	int error;
 	struct pci_emul_dsoftc *sc;
 
-	sc = malloc(sizeof(struct pci_emul_dsoftc));
-	memset(sc, 0, sizeof(struct pci_emul_dsoftc));
+	sc = calloc(1, sizeof(struct pci_emul_dsoftc));
 
 	pi->pi_arg = sc;
 
diff --git a/usr.sbin/bhyve/pci_passthru.c b/usr.sbin/bhyve/pci_passthru.c
index 562d53267099..04d68c4c15ce 100644
--- a/usr.sbin/bhyve/pci_passthru.c
+++ b/usr.sbin/bhyve/pci_passthru.c
@@ -232,8 +232,7 @@ cfginitmsi(struct passthru_softc *sc)
 
 		/* Allocate the emulated MSI-X table array */
 		table_size = pi->pi_msix.table_count * MSIX_TABLE_ENTRY_SIZE;
-		pi->pi_msix.table = malloc(table_size);
-		bzero(pi->pi_msix.table, table_size);
+		pi->pi_msix.table = calloc(1, table_size);
 
 		/* Mask all table entries */
 		for (i = 0; i < pi->pi_msix.table_count; i++) {
@@ -574,8 +573,7 @@ passthru_init(struct vmctx *ctx, struct pci_devinst *pi, char *opts)
 	if (vm_assign_pptdev(ctx, bus, slot, func) != 0)
 		goto done;
 
-	sc = malloc(sizeof(struct passthru_softc));
-	memset(sc, 0, sizeof(struct passthru_softc));
+	sc = calloc(1, sizeof(struct passthru_softc));
 
 	pi->pi_arg = sc;
 	sc->psc_pi = pi;
diff --git a/usr.sbin/bhyve/pci_virtio_block.c b/usr.sbin/bhyve/pci_virtio_block.c
index 2f37804fe444..3474fd7fb88d 100644
--- a/usr.sbin/bhyve/pci_virtio_block.c
+++ b/usr.sbin/bhyve/pci_virtio_block.c
@@ -299,8 +299,7 @@ pci_vtblk_init(struct vmctx *ctx, struct pci_devinst *pi, char *opts)
 		assert(sectsz != 0);
 	}
 
-	sc = malloc(sizeof(struct pci_vtblk_softc));
-	memset(sc, 0, sizeof(struct pci_vtblk_softc));
+	sc = calloc(1, sizeof(struct pci_vtblk_softc));
 
 	/* record fd of storage device/file */
 	sc->vbsc_fd = fd;
diff --git a/usr.sbin/bhyve/pci_virtio_net.c b/usr.sbin/bhyve/pci_virtio_net.c
index e7b54bca4049..c3b8690bb6e0 100644
--- a/usr.sbin/bhyve/pci_virtio_net.c
+++ b/usr.sbin/bhyve/pci_virtio_net.c
@@ -513,8 +513,7 @@ pci_vtnet_init(struct vmctx *ctx, struct pci_devinst *pi, char *opts)
 	char *vtopts;
 	int mac_provided;
 
-	sc = malloc(sizeof(struct pci_vtnet_softc));
-	memset(sc, 0, sizeof(struct pci_vtnet_softc));
+	sc = calloc(1, sizeof(struct pci_vtnet_softc));
 
 	pthread_mutex_init(&sc->vsc_mtx, NULL);
 
diff --git a/usr.sbin/bhyve/pci_virtio_rnd.c b/usr.sbin/bhyve/pci_virtio_rnd.c
index 38459d216c7b..4d531834cbe2 100644
--- a/usr.sbin/bhyve/pci_virtio_rnd.c
+++ b/usr.sbin/bhyve/pci_virtio_rnd.c
@@ -155,8 +155,7 @@ pci_vtrnd_init(struct vmctx *ctx, struct pci_devinst *pi, char *opts)
 		return (1);
 	}
 
-	sc = malloc(sizeof(struct pci_vtrnd_softc));
-	memset(sc, 0, sizeof(struct pci_vtrnd_softc));
+	sc = calloc(1, sizeof(struct pci_vtrnd_softc));
 
 	vi_softc_linkup(&sc->vrsc_vs, &vtrnd_vi_consts, sc, pi, &sc->vrsc_vq);
 	sc->vrsc_vs.vs_mtx = &sc->vrsc_mtx;
diff --git a/usr.sbin/bhyve/uart_emul.c b/usr.sbin/bhyve/uart_emul.c
index dd1c22039dd4..38e14a95ab03 100644
--- a/usr.sbin/bhyve/uart_emul.c
+++ b/usr.sbin/bhyve/uart_emul.c
@@ -563,8 +563,7 @@ uart_init(uart_intr_func_t intr_assert, uart_intr_func_t intr_deassert,
 {
 	struct uart_softc *sc;
 
-	sc = malloc(sizeof(struct uart_softc));
-	bzero(sc, sizeof(struct uart_softc));
+	sc = calloc(1, sizeof(struct uart_softc));
 
 	sc->arg = arg;
 	sc->intr_assert = intr_assert;