From 5268bd2900effa59b51e0fede61aacde5e2f0b95 Mon Sep 17 00:00:00 2001
From: Luca Barbato <lu_zero@gentoo.org>
Date: Tue, 13 Aug 2013 07:40:38 +0200
Subject: [PATCH] segafilm: Error out on impossible packet size
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
---
libavformat/segafilm.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavformat/segafilm.c b/libavformat/segafilm.c
index 068d432083a..adf24759c6f 100644
--- a/libavformat/segafilm.c
+++ b/libavformat/segafilm.c
@@ -214,6 +214,8 @@ static int film_read_header(AVFormatContext *s)
film->sample_table[i].sample_offset =
data_offset + AV_RB32(&scratch[0]);
film->sample_table[i].sample_size = AV_RB32(&scratch[4]);
+ if (film->sample_table[i].sample_size > INT_MAX / 4)
+ return AVERROR_INVALIDDATA;
if (AV_RB32(&scratch[8]) == 0xFFFFFFFF) {
film->sample_table[i].stream = film->audio_stream_index;
film->sample_table[i].pts = audio_frame_counter;
--
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