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| author | Michael Niedermayer <michaelni@gmx.at> | 2014-12-14 17:26:11 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-12-30 15:38:20 +0100 |
| commit | 844f7f78aa523fb452c0271cb7dc6742039b9d3c (patch) | |
| tree | 8e86381b9a57e54515a0487a8bac933dd36c3d6f | |
| parent | 059762d9da0830176ea2cbfabf49cadeb28b61c8 (diff) | |
| download | ffmpeg-844f7f78aa523fb452c0271cb7dc6742039b9d3c.tar.gz | |
avformat/aviobuf: Check that avio_seek() target is non negative
Fixes out of array access
Suggested-by: Andrew Scherkus <scherkus@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit ed86dbd05d61363dc1c0d33f3267e2177c985fdd)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavformat/aviobuf.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavformat/aviobuf.c b/libavformat/aviobuf.c index 8218078dae..87ad388fa6 100644 --- a/libavformat/aviobuf.c +++ b/libavformat/aviobuf.c @@ -217,6 +217,9 @@ int64_t avio_seek(AVIOContext *s, int64_t offset, int whence) return offset1; offset += offset1; } + if (offset < 0) + return AVERROR(EINVAL); + offset1 = offset - pos; if (!s->must_flush && (!s->direct || !s->seek) && offset1 >= 0 && offset1 <= (s->buf_end - s->buffer)) { |