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matroskadec: Fix buffer overread in matroska_ebmlnum_uint

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Based on a Chromium patch

Originally committed as revision 23168 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
David Conrad 2010-05-18 21:21:32 +00:00
parent d98bd80ed3
commit 465c28b6b4
1 changed files with 1 additions and 1 deletions
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libavformat/matroskadec.c
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@ -679,7 +679,7 @@ static int matroska_ebmlnum_uint(MatroskaDemuxContext *matroska,
{ {
ByteIOContext pb; ByteIOContext pb;
init_put_byte(&pb, data, size, 0, NULL, NULL, NULL, NULL); init_put_byte(&pb, data, size, 0, NULL, NULL, NULL, NULL);
return ebml_read_num(matroska, &pb, 8, num); return ebml_read_num(matroska, &pb, FFMIN(size, 8), num);
} }
/* /*