http2: reset push header counter fixes crash

When removing an easy handler from a multi before it completed its
transfer, and it had pushed streams, it would segfault due to the pushed
counted not being cleared.

Fixed-by: zelinchen@users.noreply.github.com
Fixes #1249

diff --git a/lib/http2.c b/lib/http2.c
index 4d108da44968d8cac5aa6f6877e2b25e7568670f..dc7bd32e1b5f3a885bf3ad95ada743473792ed65 100644 (file)
--- a/lib/http2.c
+++ b/lib/http2.c
@@ -415,6 +415,7 @@ static int push_promise(struct Curl_easy *data,
       free(stream->push_headers[i]);
     free(stream->push_headers);
     stream->push_headers = NULL;
+    stream->push_headers_used = 0;
 
     if(rv) {
       /* denied, kill off the new handle again */