Adding upstream version 255.4.upstream/255.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 27 insertions, 0 deletions

diff --git a/src/udev/net/fuzz-link-parser.c b/src/udev/net/fuzz-link-parser.c
new file mode 100644
index 0000000..2833162
--- /dev/null
+++ b/src/udev/net/fuzz-link-parser.c
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "fd-util.h"
+#include "fs-util.h"
+#include "fuzz.h"
+#include "link-config.h"
+#include "tmpfile-util.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+        _cleanup_(link_config_ctx_freep) LinkConfigContext *ctx = NULL;
+        _cleanup_(unlink_tempfilep) char filename[] = "/tmp/fuzz-link-config.XXXXXX";
+        _cleanup_fclose_ FILE *f = NULL;
+
+        if (outside_size_range(size, 0, 65536))
+                return 0;
+
+        fuzz_setup_logging();
+
+        assert_se(fmkostemp_safe(filename, "r+", &f) == 0);
+        if (size != 0)
+                assert_se(fwrite(data, size, 1, f) == 1);
+
+        fflush(f);
+        assert_se(link_config_ctx_new(&ctx) >= 0);
+        (void) link_load_one(ctx, filename);
+        return 0;
+}