From b750101eb236130cf056c675997decbac904cc49 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 17:35:18 +0200 Subject: Adding upstream version 252.22. Signed-off-by: Daniel Baumann --- src/journal/fuzz-journald-native-fd.c | 47 +++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 src/journal/fuzz-journald-native-fd.c (limited to 'src/journal/fuzz-journald-native-fd.c') diff --git a/src/journal/fuzz-journald-native-fd.c b/src/journal/fuzz-journald-native-fd.c new file mode 100644 index 0000000..fcfc5df --- /dev/null +++ b/src/journal/fuzz-journald-native-fd.c @@ -0,0 +1,47 @@ +/* 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; +} -- cgit v1.2.3