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      1 /*
      2  * Copyright (c) 2017 Fujitsu Ltd.
      3  *  Ported: Guangwen Feng <fenggw-fnst (at) 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 (at) 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