From dbaa3a42856d23c6bdebb6125c2205d965532178 Mon Sep 17 00:00:00 2001
From: Sean McArthur <sean@seanmonstar.com>
Date: Mon, 22 Nov 2021 17:04:24 -0800
Subject: [PATCH] fix: properly reject prioritized HEADERS with stream ID of
 zero

---
 src/frame/headers.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/frame/headers.rs b/src/frame/headers.rs
index 0851d76..2fc9561 100644
--- a/src/frame/headers.rs
+++ b/src/frame/headers.rs
@@ -146,6 +146,10 @@ impl Headers {
 
         tracing::trace!("loading headers; flags={:?}", flags);
 
+        if head.stream_id().is_zero() {
+            return Err(Error::InvalidStreamId);
+        }
+
         // Read the padding length
         if flags.is_padded() {
             if src.is_empty() {