1 files changed, 145 insertions, 0 deletions
diff --git a/tests/client/torture_session.c b/tests/client/torture_session.c
index 2fa2ae33..27e8fc86 100644
--- a/tests/client/torture_session.c
+++ b/tests/client/torture_session.c
@@ -258,6 +258,139 @@ static void torture_channel_delayed_close(void **state)
 
 }
 
+/* Ensure that calling 'ssh_channel_poll' on a freed channel does not lead to
+ * segmentation faults. */
+static void torture_freed_channel_poll(void **state)
+{
+    struct torture_state *s = *state;
+    ssh_session session = s->ssh.session;
+    ssh_channel channel;
+
+    char request[256];
+    int rc;
+
+    snprintf(request, 256,
+             "dd if=/dev/urandom of=/tmp/file bs=64000 count=2; hexdump -C /tmp/file");
+
+    channel = ssh_channel_new(session);
+    assert_non_null(channel);
+
+    rc = ssh_channel_open_session(channel);
+    assert_ssh_return_code(session, rc);
+
+    /* Make the request, read parts with close */
+    rc = ssh_channel_request_exec(channel, request);
+    assert_ssh_return_code(session, rc);
+
+    ssh_channel_free(channel);
+
+    rc = ssh_channel_poll(channel, 0);
+    assert_int_equal(rc, SSH_ERROR);
+}
+
+/* Ensure that calling 'ssh_channel_poll_timeout' on a freed channel does not
+ * lead to segmentation faults. */
+static void torture_freed_channel_poll_timeout(void **state)
+{
+    struct torture_state *s = *state;
+    ssh_session session = s->ssh.session;
+    ssh_channel channel;
+
+    char request[256];
+    char buff[256] = {0};
+    int rc;
+
+    snprintf(request, 256,
+             "dd if=/dev/urandom of=/tmp/file bs=64000 count=2; hexdump -C /tmp/file");
+
+    channel = ssh_channel_new(session);
+    assert_non_null(channel);
+
+    rc = ssh_channel_open_session(channel);
+    assert_ssh_return_code(session, rc);
+
+    /* Make the request, read parts with close */
+    rc = ssh_channel_request_exec(channel, request);
+    assert_ssh_return_code(session, rc);
+
+    do {
+        rc = ssh_channel_read(channel, buff, 256, 0);
+    } while(rc > 0);
+    assert_ssh_return_code(session, rc);
+
+    ssh_channel_free(channel);
+
+    rc = ssh_channel_poll_timeout(channel, 500, 0);
+    assert_int_equal(rc, SSH_ERROR);
+}
+
+/* Ensure that calling 'ssh_channel_read_nonblocking' on a freed channel does
+ * not lead to segmentation faults. */
+static void torture_freed_channel_read_nonblocking(void **state)
+{
+    struct torture_state *s = *state;
+    ssh_session session = s->ssh.session;
+    ssh_channel channel;
+
+    char request[256];
+    char buff[256] = {0};
+    int rc;
+
+    snprintf(request, 256,
+             "dd if=/dev/urandom of=/tmp/file bs=64000 count=2; hexdump -C /tmp/file");
+
+    channel = ssh_channel_new(session);
+    assert_non_null(channel);
+
+    rc = ssh_channel_open_session(channel);
+    assert_ssh_return_code(session, rc);
+
+    /* Make the request, read parts with close */
+    rc = ssh_channel_request_exec(channel, request);
+    assert_ssh_return_code(session, rc);
+
+    ssh_channel_free(channel);
+
+    rc = ssh_channel_read_nonblocking(channel, buff, 256, 0);
+    assert_ssh_return_code_equal(session, rc, SSH_ERROR);
+}
+
+/* Ensure that calling 'ssh_channel_get_exit_status' on a freed channel does not
+ * lead to segmentation faults. */
+static void torture_freed_channel_get_exit_status(void **state)
+{
+    struct torture_state *s = *state;
+    ssh_session session = s->ssh.session;
+    ssh_channel channel;
+
+    char request[256];
+    char buff[256] = {0};
+    int rc;
+
+    snprintf(request, 256,
+             "dd if=/dev/urandom of=/tmp/file bs=64000 count=2; hexdump -C /tmp/file");
+
+    channel = ssh_channel_new(session);
+    assert_non_null(channel);
+
+    rc = ssh_channel_open_session(channel);
+    assert_ssh_return_code(session, rc);
+
+    /* Make the request, read parts with close */
+    rc = ssh_channel_request_exec(channel, request);
+    assert_ssh_return_code(session, rc);
+
+    do {
+        rc = ssh_channel_read(channel, buff, 256, 0);
+    } while(rc > 0);
+    assert_ssh_return_code(session, rc);
+
+    ssh_channel_free(channel);
+
+    rc = ssh_channel_get_exit_status(channel);
+    assert_ssh_return_code_equal(session, rc, SSH_ERROR);
+}
+
 int torture_run_tests(void) {
     int rc;
     struct CMUnitTest tests[] = {
@@ -276,6 +409,18 @@ int torture_run_tests(void) {
         cmocka_unit_test_setup_teardown(torture_channel_delayed_close,
                                         session_setup,
                                         session_teardown),
+        cmocka_unit_test_setup_teardown(torture_freed_channel_poll,
+                                        session_setup,
+                                        session_teardown),
+        cmocka_unit_test_setup_teardown(torture_freed_channel_poll_timeout,
+                                        session_setup,
+                                        session_teardown),
+        cmocka_unit_test_setup_teardown(torture_freed_channel_read_nonblocking,
+                                        session_setup,
+                                        session_teardown),
+        cmocka_unit_test_setup_teardown(torture_freed_channel_get_exit_status,
+                                        session_setup,
+                                        session_teardown),
     };
 
     ssh_init();