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authorLaurent Aimar <fenrir@videolan.org>2011-10-08 23:01:33 +0200
committerMichael Niedermayer <michaelni@gmx.at>2011-11-06 19:49:12 +0100
commite1a46eff7a1017e1d3afc5204b82e08a1ea0bf3d (patch)
treea0c0366251846b5451ffedc623e19c067267eade
parent23aaa82b1d30456339c09b3591fe78534839d4d0 (diff)
downloadffmpeg-e1a46eff7a1017e1d3afc5204b82e08a1ea0bf3d.tar.gz
qtrle: check for invalid line offset
Signed-off-by: Michael Niedermayer <michaelni@gmx.at> (cherry picked from commit a4ed7c3fe9f99b89f86b65710d8855dc572f1a25) Signed-off-by: Michael Niedermayer <michaelni@gmx.at> (cherry picked from commit 67c46b9b3027fdd9fd737e21a80d3326748b1c15) Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
-rw-r--r--libavcodec/qtrle.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/qtrle.c b/libavcodec/qtrle.c
index d535c38dd9..b66acd4220 100644
--- a/libavcodec/qtrle.c
+++ b/libavcodec/qtrle.c
@@ -461,6 +461,8 @@ static int qtrle_decode_frame(AVCodecContext *avctx,
stream_ptr += 4;
height = AV_RB16(&s->buf[stream_ptr]);
stream_ptr += 4;
+ if (height > s->avctx->height - start_line)
+ goto done;
} else {
start_line = 0;
height = s->avctx->height;