From 368468447f28b0971ac82e48d2ddb1d338f18c14 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Thu, 12 May 2022 16:29:12 +0400
Subject: [PATCH] Fix possible crash on bad data.

---
 Telegram/SourceFiles/data/data_document.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Telegram/SourceFiles/data/data_document.cpp b/Telegram/SourceFiles/data/data_document.cpp
index aae2bd788..3fabde796 100644
--- a/Telegram/SourceFiles/data/data_document.cpp
+++ b/Telegram/SourceFiles/data/data_document.cpp
@@ -1194,7 +1194,9 @@ bool DocumentData::hasRemoteLocation() const {
 }
 
 bool DocumentData::useStreamingLoader() const {
-	if (const auto info = sticker()) {
+	if (size <= 0) {
+		return false;
+	} else if (const auto info = sticker()) {
 		return info->isWebm();
 	}
 	return isAnimation()