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| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-03-25 01:51:28 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-07-10 01:18:52 +0200 |
| commit | 367d459f78c1cecce1d1a8e5bbe6a8b908de3e2f (patch) | |
| tree | b5a2e87624926849752c509325de7c428210c615 | |
| parent | e1aec9bb8d80e4e88225a527da5c8c3b32301f4f (diff) | |
| download | ffmpeg-367d459f78c1cecce1d1a8e5bbe6a8b908de3e2f.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 7e2d5da4bf..5d82f0e74c 100644 --- a/libavcodec/wmalosslessdec.c +++ b/libavcodec/wmalosslessdec.c @@ -1238,7 +1238,9 @@ 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 |