From cb6d406591df90a00cedbc3d0641d550be0d3c3a Mon Sep 17 00:00:00 2001
From: Craig Tiller <ctiller@google.com>
Date: Tue, 19 Apr 2016 19:58:36 -0700
Subject: [PATCH] Clean up fuzzer a little

---
 test/core/end2end/fuzzers/api_fuzzer.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/test/core/end2end/fuzzers/api_fuzzer.c b/test/core/end2end/fuzzers/api_fuzzer.c
index cbf98ed1f18..2c7c222fb14 100644
--- a/test/core/end2end/fuzzers/api_fuzzer.c
+++ b/test/core/end2end/fuzzers/api_fuzzer.c
@@ -643,6 +643,10 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
           break;
         }
         size_t num_ops = next_byte(&inp);
+        if (num_ops > 6) {
+          end(&inp);
+          break;
+        }
         grpc_op *ops = gpr_malloc(sizeof(grpc_op) * num_ops);
         bool ok = true;
         size_t i;
@@ -651,6 +655,8 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
           op = &ops[i];
           switch (next_byte(&inp)) {
             default:
+              /* invalid value */
+              op->op = -1;
               ok = false;
               break;
             case GRPC_OP_SEND_INITIAL_METADATA: