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| author | Andreas Rheinhardt <andreas.rheinhardt@gmail.com> | 2020-09-23 06:24:03 +0200 |
|---|---|---|
| committer | Andreas Rheinhardt <andreas.rheinhardt@gmail.com> | 2020-09-26 20:38:30 +0200 |
| commit | 3c172a2fb91a758d9e15f09f96879e6e9b5a37ec (patch) | |
| tree | 214efee68273ecd901c5269da507231979774ff1 | |
| parent | 310d4062e7639217d717e447426343366775ac30 (diff) | |
| download | ffmpeg-3c172a2fb91a758d9e15f09f96879e6e9b5a37ec.tar.gz | |
avcodec/magicyuv: Check early for invalid slices
Every plane of each slice has to contain at least two bytes for flags
and the type of prediction used.
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
| -rw-r--r-- | libavcodec/magicyuv.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/magicyuv.c b/libavcodec/magicyuv.c index d2f6a9b01e..6c29efc9f4 100644 --- a/libavcodec/magicyuv.c +++ b/libavcodec/magicyuv.c @@ -614,6 +614,8 @@ static int magy_decode_frame(AVCodecContext *avctx, void *data, return AVERROR_INVALIDDATA; s->slices[i][j].size = next_offset - offset; + if (s->slices[i][j].size < 2) + return AVERROR_INVALIDDATA; offset = next_offset; } |