Fix

src/core/lib/surface/server.cc

@@ -633,7 +633,7 @@ static void start_new_rpc(grpc_call_element* elem) {
     for (i = 0; i <= chand->registered_method_max_probes; i++) {
       rm = &chand->registered_methods[(hash + i) %
                                       chand->registered_method_slots];
-      if (!rm) break;
+      if (rm->server_registered_method == nullptr) break;
       if (!rm->has_host) continue;
       if (!grpc_slice_eq(rm->host, calld->host)) continue;
       if (!grpc_slice_eq(rm->method, calld->path)) continue;
@@ -651,7 +651,7 @@ static void start_new_rpc(grpc_call_element* elem) {
     for (i = 0; i <= chand->registered_method_max_probes; i++) {
       rm = &chand->registered_methods[(hash + i) %
                                       chand->registered_method_slots];
-      if (!rm) break;
+      if (rm->server_registered_method == nullptr) break;
       if (rm->has_host) continue;
       if (!grpc_slice_eq(rm->method, calld->path)) continue;
       if ((rm->flags & GRPC_INITIAL_METADATA_IDEMPOTENT_REQUEST) &&

test/core/end2end/fuzzers/server_fuzzer.cc

@@ -57,9 +57,8 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
     grpc_server* server = grpc_server_create(nullptr, nullptr);
     grpc_completion_queue* cq = grpc_completion_queue_create_for_next(nullptr);
     grpc_server_register_completion_queue(server, cq, nullptr);
-    // TODO(ctiller): add registered methods (one for POST, one for PUT)
-    // void *registered_method =
-    //    grpc_server_register_method(server, "/reg", NULL, 0);
+    // TODO(ctiller): add more registered methods (one for POST, one for PUT)
+    grpc_server_register_method(server, "/reg", nullptr, {}, 0);
     grpc_server_start(server);
     grpc_transport* transport =
         grpc_create_chttp2_transport(nullptr, mock_endpoint, false);

tools/run_tests/generated/tests.json

@@ -182346,6 +182346,29 @@
     ], 
     "uses_polling": false
   }, 
+  {
+    "args": [
+      "test/core/end2end/fuzzers/server_fuzzer_corpus/hope.bin"
+    ], 
+    "ci_platforms": [
+      "linux"
+    ], 
+    "cpu_cost": 0.1, 
+    "exclude_configs": [
+      "tsan"
+    ], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "server_fuzzer_one_entry", 
+    "platforms": [
+      "mac", 
+      "linux"
+    ], 
+    "uses_polling": false
+  }, 
   {
     "args": [
       "test/core/end2end/fuzzers/server_fuzzer_corpus/slow-unit-0292270056246b7a4ccd2e7d0356665cef307ef2"