1 /*
2  * Copyright (c) 2017 Fujitsu Ltd.
3  *  Ported: Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
4  *
5  * This program is free software: you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation, either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program, if not, see <http://www.gnu.org/licenses/>.
17  */
18 
19 /*
20  * This regression test can crash the buggy kernel,
21  * and the bug was fixed in:
22  *
23  *  commit f05819df10d7b09f6d1eb6f8534a8f68e5a4fe61
24  *  Author: David Howells <dhowells@redhat.com>
25  *  Date:   Thu Oct 15 17:21:37 2015 +0100
26  *
27  *  KEYS: Fix crash when attempt to garbage collect
28  *        an uninstantiated keyring
29  */
30 
31 #include <errno.h>
32 #include <sys/types.h>
33 
34 #include "tst_test.h"
35 #include "lapi/keyctl.h"
36 
37 static void do_test(void)
38 {
39 	key_serial_t key;
40 
41 	key = add_key("user", "ltptestkey", "a", 1, KEY_SPEC_SESSION_KEYRING);
42 	if (key == -1)
43 		tst_brk(TBROK, "Failed to add key");
44 
45 	request_key("keyring", "foo", "bar", KEY_SPEC_THREAD_KEYRING);
46 
47 	TEST(keyctl(KEYCTL_UNLINK, key, KEY_SPEC_SESSION_KEYRING));
48 	if (TEST_RETURN)
49 		tst_res(TFAIL | TTERRNO, "keyctl unlink failed");
50 	else
51 		tst_res(TPASS, "Bug not reproduced");
52 }
53 
54 static struct tst_test test = {
55 	.test_all = do_test,
56 };
57