--- sys/compat/linux/linux_ioctl.c.orig
+++ sys/compat/linux/linux_ioctl.c
@@ -253,6 +253,7 @@
 		} else if ((args->cmd & 0xffff) == LINUX_HDIO_GET_GEO_BIG) {
 			struct linux_hd_big_geometry hdbg;
 
+			memset(&hdbg, 0, sizeof(hdbg));
 			hdbg.cylinders = fwcylinders;
 			hdbg.heads = fwheads;
 			hdbg.sectors = fwsectors;
@@ -2477,6 +2478,7 @@
 		printf("%s(): ioctl %d on %.*s\n", __func__,
 		    args->cmd & 0xffff, LINUX_IFNAMSIZ, lifname);
 #endif
+		memset(ifname, 0, sizeof(ifname));
 		ifp = ifname_linux_to_bsd(td, lifname, ifname);
 		if (ifp == NULL)
 			return (EINVAL);
--- sys/compat/linux/linux_ipc.c.orig
+++ sys/compat/linux/linux_ipc.c
@@ -548,6 +548,9 @@
 	register_t rval;
 	int cmd, error;
 
+	memset(&linux_seminfo, 0, sizeof(linux_seminfo));
+	memset(&linux_semid64, 0, sizeof(linux_semid64));
+
 	switch (args->cmd & ~LINUX_IPC_64) {
 	case LINUX_IPC_RMID:
 		cmd = IPC_RMID;
@@ -702,6 +705,8 @@
 	struct l_msqid64_ds linux_msqid64;
 	struct msqid_ds bsd_msqid;
 
+	memset(&linux_msqid64, 0, sizeof(linux_msqid64));
+
 	bsd_cmd = args->cmd & ~LINUX_IPC_64;
 	switch (bsd_cmd) {
 	case LINUX_IPC_INFO:
@@ -708,6 +713,7 @@
 	case LINUX_MSG_INFO: {
 		struct l_msginfo linux_msginfo;
 
+		memset(&linux_msginfo, 0, sizeof(linux_msginfo));
 		/*
 		 * XXX MSG_INFO uses the same data structure but returns different
 		 * dynamic counters in msgpool, msgmap, and msgtql fields.
@@ -833,6 +839,10 @@
 	struct shmid_ds bsd_shmid;
 	int error;
 
+	memset(&linux_shm_info, 0, sizeof(linux_shm_info));
+	memset(&linux_shmid64, 0, sizeof(linux_shmid64));
+	memset(&linux_shminfo64, 0, sizeof(linux_shminfo64));
+
 	switch (args->cmd & ~LINUX_IPC_64) {
 
 	case LINUX_IPC_INFO: {
--- sys/dev/ath/if_ath_btcoex.c.orig
+++ sys/dev/ath/if_ath_btcoex.c
@@ -457,7 +457,7 @@
 		 * pointer for us to use below in reclaiming the buffer;
 		 * may want to be more defensive.
 		 */
-		outdata = malloc(outsize, M_TEMP, M_NOWAIT);
+		outdata = malloc(outsize, M_TEMP, M_NOWAIT | M_ZERO);
 		if (outdata == NULL) {
 			error = ENOMEM;
 			goto bad;
@@ -466,6 +466,7 @@
 	switch (id) {
 		default:
 			error = EINVAL;
+			goto bad;
 	}
 	if (outsize < ad->ad_out_size)
 		ad->ad_out_size = outsize;
--- sys/dev/ath/if_ath_ioctl.c.orig
+++ sys/dev/ath/if_ath_ioctl.c
@@ -197,7 +197,7 @@
 		 * pointer for us to use below in reclaiming the buffer;
 		 * may want to be more defensive.
 		 */
-		outdata = malloc(outsize, M_TEMP, M_NOWAIT);
+		outdata = malloc(outsize, M_TEMP, M_NOWAIT | M_ZERO);
 		if (outdata == NULL) {
 			error = ENOMEM;
 			goto bad;
--- sys/dev/ath/if_ath_lna_div.c.orig
+++ sys/dev/ath/if_ath_lna_div.c
@@ -187,7 +187,7 @@
 		 * pointer for us to use below in reclaiming the buffer;
 		 * may want to be more defensive.
 		 */
-		outdata = malloc(outsize, M_TEMP, M_NOWAIT);
+		outdata = malloc(outsize, M_TEMP, M_NOWAIT | M_ZERO);
 		if (outdata == NULL) {
 			error = ENOMEM;
 			goto bad;
@@ -196,6 +196,7 @@
 	switch (id) {
 		default:
 			error = EINVAL;
+			goto bad;
 	}
 	if (outsize < ad->ad_out_size)
 		ad->ad_out_size = outsize;
--- sys/dev/ath/if_ath_spectral.c.orig
+++ sys/dev/ath/if_ath_spectral.c
@@ -212,7 +212,7 @@
 		 * pointer for us to use below in reclaiming the buffer;
 		 * may want to be more defensive.
 		 */
-		outdata = malloc(outsize, M_TEMP, M_NOWAIT);
+		outdata = malloc(outsize, M_TEMP, M_NOWAIT | M_ZERO);
 		if (outdata == NULL) {
 			error = ENOMEM;
 			goto bad;
@@ -275,6 +275,7 @@
 		break;
 		default:
 			error = EINVAL;
+			goto bad;
 	}
 	if (outsize < ad->ad_out_size)
 		ad->ad_out_size = outsize;
--- sys/netinet/tcp_usrreq.c.orig
+++ sys/netinet/tcp_usrreq.c
@@ -1495,7 +1495,9 @@
 		return (error);
 	} else if ((sopt->sopt_dir == SOPT_GET) && 
 	    (sopt->sopt_name == TCP_FUNCTION_BLK)) {
-		strcpy(fsn.function_set_name, tp->t_fb->tfb_tcp_block_name);
+		strncpy(fsn.function_set_name, tp->t_fb->tfb_tcp_block_name,
+		    TCP_FUNCTION_NAME_LEN_MAX);
+		fsn.function_set_name[TCP_FUNCTION_NAME_LEN_MAX - 1] = '\0';
 		fsn.pcbcnt = tp->t_fb->tfb_refcnt;
 		INP_WUNLOCK(inp);
 		error = sooptcopyout(sopt, &fsn, sizeof fsn);