1*49cdfc7eSAndroid Build Coastguard Worker // SPDX-License-Identifier: GPL-2.0-or-later
2*49cdfc7eSAndroid Build Coastguard Worker /*
3*49cdfc7eSAndroid Build Coastguard Worker * Copyright (c) 2021 SUSE LLC <[email protected]>
4*49cdfc7eSAndroid Build Coastguard Worker */
5*49cdfc7eSAndroid Build Coastguard Worker
6*49cdfc7eSAndroid Build Coastguard Worker /*\
7*49cdfc7eSAndroid Build Coastguard Worker * [Description]
8*49cdfc7eSAndroid Build Coastguard Worker *
9*49cdfc7eSAndroid Build Coastguard Worker * Check wait4(INT_MIN, ...) is not allowed. The pid is negated before
10*49cdfc7eSAndroid Build Coastguard Worker * searching for a group with that pid. Negating INT_MIN is not
11*49cdfc7eSAndroid Build Coastguard Worker * defined so UBSAN will be triggered if enabled. Also see kill13.
12*49cdfc7eSAndroid Build Coastguard Worker *
13*49cdfc7eSAndroid Build Coastguard Worker * If the bug is present, but UBSAN is not enabled, then it should
14*49cdfc7eSAndroid Build Coastguard Worker * result in ECHILD.
15*49cdfc7eSAndroid Build Coastguard Worker */
16*49cdfc7eSAndroid Build Coastguard Worker
17*49cdfc7eSAndroid Build Coastguard Worker #include <stdlib.h>
18*49cdfc7eSAndroid Build Coastguard Worker #include <errno.h>
19*49cdfc7eSAndroid Build Coastguard Worker #include <limits.h>
20*49cdfc7eSAndroid Build Coastguard Worker #define _USE_BSD
21*49cdfc7eSAndroid Build Coastguard Worker #include <sys/types.h>
22*49cdfc7eSAndroid Build Coastguard Worker #include <sys/resource.h>
23*49cdfc7eSAndroid Build Coastguard Worker #include <sys/wait.h>
24*49cdfc7eSAndroid Build Coastguard Worker #include "tst_test.h"
25*49cdfc7eSAndroid Build Coastguard Worker
run(void)26*49cdfc7eSAndroid Build Coastguard Worker static void run(void)
27*49cdfc7eSAndroid Build Coastguard Worker {
28*49cdfc7eSAndroid Build Coastguard Worker int status = 1;
29*49cdfc7eSAndroid Build Coastguard Worker struct rusage rusage;
30*49cdfc7eSAndroid Build Coastguard Worker
31*49cdfc7eSAndroid Build Coastguard Worker TST_EXP_FAIL2(wait4(INT_MIN, &status, 0, &rusage), ESRCH,
32*49cdfc7eSAndroid Build Coastguard Worker "wait4 fails with ESRCH");
33*49cdfc7eSAndroid Build Coastguard Worker }
34*49cdfc7eSAndroid Build Coastguard Worker
35*49cdfc7eSAndroid Build Coastguard Worker static struct tst_test test = {
36*49cdfc7eSAndroid Build Coastguard Worker .test_all = run,
37*49cdfc7eSAndroid Build Coastguard Worker .taint_check = TST_TAINT_W | TST_TAINT_D,
38*49cdfc7eSAndroid Build Coastguard Worker .tags = (const struct tst_tag[]) {
39*49cdfc7eSAndroid Build Coastguard Worker {"linux-git", "dd83c161fbcc"},
40*49cdfc7eSAndroid Build Coastguard Worker {}
41*49cdfc7eSAndroid Build Coastguard Worker }
42*49cdfc7eSAndroid Build Coastguard Worker };
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