1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include "fd-util.h"
#include "fs-util.h"
#include "fuzz-journald.h"
#include "fuzz.h"
#include "journald-native.h"
#include "memfd-util.h"
#include "process-util.h"
#include "tmpfile-util.h"
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
Server s;
_cleanup_close_ int sealed_fd = -1, unsealed_fd = -1;
_cleanup_(unlink_tempfilep) char name[] = "/tmp/fuzz-journald-native-fd.XXXXXX";
char *label = NULL;
size_t label_len = 0;
struct ucred ucred;
struct timeval *tv = NULL;
if (!getenv("SYSTEMD_LOG_LEVEL"))
log_set_max_level(LOG_CRIT);
dummy_server_init(&s, NULL, 0);
sealed_fd = memfd_new(NULL);
assert_se(sealed_fd >= 0);
assert_se(write(sealed_fd, data, size) == (ssize_t) size);
assert_se(memfd_set_sealed(sealed_fd) >= 0);
assert_se(lseek(sealed_fd, 0, SEEK_SET) == 0);
ucred = (struct ucred) {
.pid = getpid_cached(),
.uid = geteuid(),
.gid = getegid(),
};
server_process_native_file(&s, sealed_fd, &ucred, tv, label, label_len);
unsealed_fd = mkostemp_safe(name);
assert_se(unsealed_fd >= 0);
assert_se(write(unsealed_fd, data, size) == (ssize_t) size);
assert_se(lseek(unsealed_fd, 0, SEEK_SET) == 0);
server_process_native_file(&s, unsealed_fd, &ucred, tv, label, label_len);
server_done(&s);
return 0;
}
|
