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| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-03-25 01:51:28 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-04-13 00:35:15 +0200 |
| commit | d79b274acc3a608358c0cd1ffe8ebd92bf108480 (patch) | |
| tree | 4a29c0dac7ba17b9b855333e7a05f4b86388f9f5 | |
| parent | 769cb8973817674c65542efed68aadacb867828b (diff) | |
| download | ffmpeg-d79b274acc3a608358c0cd1ffe8ebd92bf108480.tar.gz | |
avcodec/wmalosslessdec: Fix null pointer dereference in decode_frame()
Fixes: 2018_03_23_poc.wav
Found-by: GwanYeong Kim <gy741.kim@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ea15915b2dc5aaa80c91879fbd183475a7e66e54)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/wmalosslessdec.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavcodec/wmalosslessdec.c b/libavcodec/wmalosslessdec.c index 59e8929586..eb1db615ae 100644 --- a/libavcodec/wmalosslessdec.c +++ b/libavcodec/wmalosslessdec.c @@ -1256,7 +1256,9 @@ static int decode_packet(AVCodecContext *avctx, void *data, int *got_frame_ptr, (frame_size = show_bits(gb, s->log2_frame_size)) && frame_size <= remaining_bits(s, gb)) { save_bits(s, gb, frame_size, 0); - s->packet_done = !decode_frame(s); + + if (!s->packet_loss) + s->packet_done = !decode_frame(s); } else if (!s->len_prefix && s->num_saved_bits > get_bits_count(&s->gb)) { /* when the frames do not have a length prefix, we don't know the |