Module: libav
Branch: release/0.8
Commit: 896baaaad85c402db187c1c81ececc3a9624dbc1
Author: Luca Barbato <lu_z...@gentoo.org>
Committer: Sean McGovern <gsean...@gmail.com>
Date: Tue Aug 13 07:40:38 2013 +0200
segafilm: Error out on impossible packet size
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-sta...@libav.org
(cherry picked from commit 5268bd2900effa59b51e0fede61aacde5e2f0b95)
Signed-off-by: Luca Barbato <lu_z...@gentoo.org>
---
libavformat/segafilm.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavformat/segafilm.c b/libavformat/segafilm.c
index 5c346a7..5279121 100644
--- a/libavformat/segafilm.c
+++ b/libavformat/segafilm.c
@@ -210,6 +210,8 @@ 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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