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-rw-r--r--exec.c4
-rw-r--r--tests/acceptance/empty_cpu_model.py19
2 files changed, 23 insertions, 0 deletions
diff --git a/exec.c b/exec.c
index 08f6cafcbc..f7f3cdbf4a 100644
--- a/exec.c
+++ b/exec.c
@@ -991,6 +991,10 @@ const char *parse_cpu_option(const char *cpu_option)
const char *cpu_type;
model_pieces = g_strsplit(cpu_option, ",", 2);
+ if (!model_pieces[0]) {
+ error_report("-cpu option cannot be empty");
+ exit(1);
+ }
oc = cpu_class_by_name(CPU_RESOLVING_TYPE, model_pieces[0]);
if (oc == NULL) {
diff --git a/tests/acceptance/empty_cpu_model.py b/tests/acceptance/empty_cpu_model.py
new file mode 100644
index 0000000000..3f4f663582
--- /dev/null
+++ b/tests/acceptance/empty_cpu_model.py
@@ -0,0 +1,19 @@
+# Check for crash when using empty -cpu option
+#
+# Copyright (c) 2019 Red Hat, Inc.
+#
+# Author:
+# Eduardo Habkost <ehabkost@redhat.com>
+#
+# This work is licensed under the terms of the GNU GPL, version 2 or
+# later. See the COPYING file in the top-level directory.
+import subprocess
+from avocado_qemu import Test
+
+class EmptyCPUModel(Test):
+ def test(self):
+ cmd = [self.qemu_bin, '-S', '-display', 'none', '-machine', 'none', '-cpu', '']
+ r = subprocess.run(cmd, stderr=subprocess.PIPE, stdout=subprocess.PIPE)
+ self.assertEquals(r.returncode, 1, "QEMU exit code should be 1")
+ self.assertEquals(r.stdout, b'', "QEMU stdout should be empty")
+ self.assertNotEquals(r.stderr, b'', "QEMU stderr shouldn't be empty")