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Fail RLE decoding if insufficient data for a complete bitmap was decoded.
author
Reimar Döffinger
<Reimar.Doeffinger@gmx.de>
Mon, 22 Nov 2010 20:39:18 +0000
(20:39 +0000)
committer
Reimar Döffinger
<Reimar.Doeffinger@gmx.de>
Mon, 22 Nov 2010 20:39:18 +0000
(20:39 +0000)
Originally committed as revision 25797 to svn://svn.ffmpeg.org/ffmpeg/trunk
libavcodec/pgssubdec.c
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diff --git
a/libavcodec/pgssubdec.c
b/libavcodec/pgssubdec.c
index
197582f
..
c283b9c
100644
(file)
--- a/
libavcodec/pgssubdec.c
+++ b/
libavcodec/pgssubdec.c
@@
-136,6
+136,11
@@
static int decode_rle(AVCodecContext *avctx, AVSubtitle *sub,
}
}
+ if (pixel_count < sub->rects[0]->w * sub->rects[0]->h) {
+ av_log(avctx, AV_LOG_ERROR, "Insufficient RLE data for subtitle\n");
+ return -1;
+ }
+
dprintf(avctx, "Pixel Count = %d, Area = %d\n", pixel_count, sub->rects[0]->w * sub->rects[0]->h);
return 0;