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| author | Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com> | 2015-06-27 17:50:56 +0200 |
|---|---|---|
| committer | Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com> | 2015-06-27 19:22:27 +0200 |
| commit | 6b9fdf7f4f07926557048070cc2af3cfd0e3fe50 (patch) | |
| tree | 72a13ad7967e20c5258309eb11c059be82ef99f6 /libavformat/nutdec.c | |
| parent | f620315fa5b1710e3a47b80ca2cd4597510804ba (diff) | |
| download | ffmpeg-6b9fdf7f4f07926557048070cc2af3cfd0e3fe50.tar.gz | |
nutdec: check maxpos in read_sm_data before returning success
Otherwise sm_size can be larger than size, which results in a negative
packet size.
Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Diffstat (limited to 'libavformat/nutdec.c')
| -rw-r--r-- | libavformat/nutdec.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavformat/nutdec.c b/libavformat/nutdec.c index 13fb39924d..606deaa838 100644 --- a/libavformat/nutdec.c +++ b/libavformat/nutdec.c @@ -1005,6 +1005,9 @@ static int read_sm_data(AVFormatContext *s, AVIOContext *bc, AVPacket *pkt, int AV_WL32(dst+4, skip_end); } + if (avio_tell(bc) >= maxpos) + return AVERROR_INVALIDDATA; + return 0; } |