diff --git a/cmd/zstream/zstream_token.c b/cmd/zstream/zstream_token.c
index 23cc56dce3..795a372633 100644
--- a/cmd/zstream/zstream_token.c
+++ b/cmd/zstream/zstream_token.c
@@ -49,6 +49,7 @@ int
 zstream_do_token(int argc, char *argv[])
 {
 	char *resume_token = NULL;
+	libzfs_handle_t *hdl;
 
 	if (argc < 2) {
 		(void) fprintf(stderr, "Need to pass the resume token\n");
@@ -57,7 +58,10 @@ zstream_do_token(int argc, char *argv[])
 
 	resume_token = argv[1];
 
-	libzfs_handle_t *hdl = libzfs_init();
+	if ((hdl = libzfs_init()) == NULL) {
+		(void) fprintf(stderr, "%s\n", libzfs_error_init(errno));
+		return (1);
+	}
 
 	nvlist_t *resume_nvl =
 	    zfs_send_resume_token_to_nvlist(hdl, resume_token);
diff --git a/cmd/ztest.c b/cmd/ztest.c
index 033bcfd335..e630d33531 100644
--- a/cmd/ztest.c
+++ b/cmd/ztest.c
@@ -6637,6 +6637,8 @@ ztest_global_vars_to_zdb_args(void)
 {
 	char **args = calloc(2*ztest_opts.zo_gvars_count + 1, sizeof (char *));
 	char **cur = args;
+	if (args == NULL)
+		return (NULL);
 	for (size_t i = 0; i < ztest_opts.zo_gvars_count; i++) {
 		*cur++ = (char *)"-o";
 		*cur++ = ztest_opts.zo_gvars[i];
@@ -6906,6 +6908,10 @@ ztest_run_zdb(const char *pool)
 	ztest_get_zdb_bin(bin, len);
 
 	char **set_gvars_args = ztest_global_vars_to_zdb_args();
+	if (set_gvars_args == NULL) {
+		fatal(B_FALSE, "Failed to allocate memory in "
+		    "ztest_global_vars_to_zdb_args(). Cannot run zdb.\n");
+	}
 	char *set_gvars_args_joined = join_strings(set_gvars_args, " ");
 	free(set_gvars_args);
 
diff --git a/lib/libzfs/libzfs_dataset.c b/lib/libzfs/libzfs_dataset.c
index 3288268fb2..133b3b3588 100644
--- a/lib/libzfs/libzfs_dataset.c
+++ b/lib/libzfs/libzfs_dataset.c
@@ -4164,6 +4164,8 @@ zfs_snapshot_nvl(libzfs_handle_t *hdl, nvlist_t *snaps, nvlist_t *props)
 	 * same pool, as does lzc_snapshot (below).
 	 */
 	elem = nvlist_next_nvpair(snaps, NULL);
+	if (elem == NULL)
+		return (-1);
 	(void) strlcpy(pool, nvpair_name(elem), sizeof (pool));
 	pool[strcspn(pool, "/@")] = '\0';
 	zpool_hdl = zpool_open(hdl, pool);