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| author | Michael Niedermayer <michaelni@gmx.at> | 2014-12-14 17:26:11 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2015-03-12 00:47:05 +0100 |
| commit | 1aedd7645a3d01a9a674a7e62d90811a88bc6b04 (patch) | |
| tree | dea3c432ad1084fa217653f09bf2363edc017595 | |
| parent | 9f993d2d4ba256155b52529922e7da0144e64b99 (diff) | |
| download | ffmpeg-1aedd7645a3d01a9a674a7e62d90811a88bc6b04.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 626261ab24..8c6be84017 100644 --- a/libavformat/aviobuf.c +++ b/libavformat/aviobuf.c @@ -203,6 +203,9 @@ 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 && offset1 >= 0 && offset1 <= (s->buf_end - s->buffer)) { |