Merge pull request #11824 from keszybz/fuzzer-fixes

Fuzzer fixes

src/fuzz/fuzz-journald-stream.c

@@ -15,7 +15,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
         StdoutStream *stream;
         int v;
 
-        if (size == 0)
+        if (size == 0 || size > 65536)
                 return 0;
 
         if (!getenv("SYSTEMD_LOG_LEVEL"))

src/fuzz/fuzz-journald-stream.options

@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 65536

src/fuzz/fuzz-lldp.c

@@ -23,6 +23,9 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
         _cleanup_(sd_event_unrefp) sd_event *e = NULL;
         _cleanup_(sd_lldp_unrefp) sd_lldp *lldp = NULL;
 
+        if (size > 2048)
+                return 0;
+
         assert_se(sd_event_new(&e) == 0);
         assert_se(sd_lldp_new(&lldp) >= 0);
         assert_se(sd_lldp_set_ifindex(lldp, 42) >= 0);

src/fuzz/fuzz-lldp.options

@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 2048

src/fuzz/fuzz-ndisc-rs.c

@@ -43,6 +43,9 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
         _cleanup_(sd_event_unrefp) sd_event *e = NULL;
         _cleanup_(sd_ndisc_unrefp) sd_ndisc *nd = NULL;
 
+        if (size > 2048)
+                return 0;
+
         assert_se(sd_event_new(&e) >= 0);
         assert_se(sd_ndisc_new(&nd) >= 0);
         assert_se(sd_ndisc_attach_event(nd, e, 0) >= 0);

src/fuzz/fuzz-ndisc-rs.options

@@ -0,0 +1,2 @@
+[libfuzzer]
+max_len = 2048