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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-11-24 00:22:39 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-02-20 14:21:24 +0100 |
| commit | 8a88150ffcf4dd39e65d97811fcd6269f0306eb7 (patch) | |
| tree | ab498f12e7faaa3e7c99717d35559be90793516a | |
| parent | b81c4dd4f9c0eb5127b7dcbe862ea148958056de (diff) | |
| download | ffmpeg-8a88150ffcf4dd39e65d97811fcd6269f0306eb7.tar.gz | |
avformat/wavdec: Consider AV_INPUT_BUFFER_PADDING_SIZE in set_spdif()
The buffer is read by using the bit reader
Fixes: out of array read
Fixes: 27539/clusterfuzz-testcase-minimized-ffmpeg_dem_WAV_fuzzer-5650565572591616
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 0a7c648e2d85a59975cc88079975cf9f3306ed0a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/wavdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/wavdec.c b/libavformat/wavdec.c index 703a98414d..309bb6573e 100644 --- a/libavformat/wavdec.c +++ b/libavformat/wavdec.c @@ -69,7 +69,7 @@ static void set_spdif(AVFormatContext *s, WAVDemuxContext *wav) int ret = ffio_ensure_seekback(s->pb, len); if (ret >= 0) { - uint8_t *buf = av_malloc(len); + uint8_t *buf = av_malloc(len + AV_INPUT_BUFFER_PADDING_SIZE); if (!buf) { ret = AVERROR(ENOMEM); } else { |