From f2ddc15d765b87444faedd6e775dc27db4628d42 Mon Sep 17 00:00:00 2001
From: Joshua Haberman <jhaberman@gmail.com>
Date: Mon, 12 Oct 2020 09:31:39 -0700
Subject: [PATCH] Bugfix: initialize fastlimit and fastend.

---
 upb/decode.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/upb/decode.c b/upb/decode.c
index 3b00f91193..da6586cb65 100644
--- a/upb/decode.c
+++ b/upb/decode.c
@@ -648,6 +648,8 @@ bool upb_decode(const char *buf, size_t size, void *msg, const upb_msglayout *l,
   if (size == 0) return true;
 
   state.limit = buf + size;
+  state.fastlimit = state.limit - 16;
+  state.fastend = state.fastlimit;
   state.depth = 64;
   state.end_group = 0;
   state.arena.head = arena->head;