From f761ea71d10a0a0df85fa3abc1f810fe3bd59131 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?M=C3=A5rten=20Nordheim?= <marten.nordheim@qt.io>
Date: Fri, 8 Oct 2021 13:53:53 +0200
Subject: Http2: Handle failed read from QDecompressHelper

If the data is corrupt or the underlying library fails to read,
the decompressHelper gets reset and we must not try to call it
again. Emit an error since we cannot work with the data.

Task-number: QTBUG-97179
Change-Id: I62c49fb2fbb2cd942c82a08937f817b6c762c883
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
---
 src/network/access/qhttp2protocolhandler.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src')

diff --git a/src/network/access/qhttp2protocolhandler.cpp b/src/network/access/qhttp2protocolhandler.cpp
index 076570d474..efb5bcc74b 100644
--- a/src/network/access/qhttp2protocolhandler.cpp
+++ b/src/network/access/qhttp2protocolhandler.cpp
@@ -1288,6 +1288,11 @@ void QHttp2ProtocolHandler::updateStream(Stream &stream, const Frame &frame,
                 if (read > 0) {
                     output.resize(read);
                     replyPrivate->responseData.append(std::move(output));
+                } else if (read < 0) {
+                    finishStreamWithError(
+                            stream, QNetworkReply::ProtocolFailure,
+                            QCoreApplication::translate("QHttp", "Data corrupted"));
+                    return;
                 }
             }
         } else {
-- 
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