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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-09-19 11:29:01 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-09-10 16:04:26 +0200 |
| commit | e5e60759bb9fa3443bee14cb0c9acfd7d2a05fb1 (patch) | |
| tree | 8c1f65ceaa1f8ea05b15da2c9d00e2b828ba3ce2 | |
| parent | 9c13daeaf76b5baee16c5ba4b3b1acbbeed04254 (diff) | |
| download | ffmpeg-e5e60759bb9fa3443bee14cb0c9acfd7d2a05fb1.tar.gz | |
avcodec/sonic: Check for overread
Fixes: Timeout (too long -> 1.3 sec)
Fixes: 24358/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SONIC_fuzzer-5107284099989504
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 eeabdef1bf96cdecf80aeb8d0478d008457b048c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/sonic.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/sonic.c b/libavcodec/sonic.c index 07bf21ffb6..c635005bec 100644 --- a/libavcodec/sonic.c +++ b/libavcodec/sonic.c @@ -1031,6 +1031,9 @@ static int sonic_decode_frame(AVCodecContext *avctx, { int x = ch; + if (c.overread > MAX_OVERREAD) + return AVERROR_INVALIDDATA; + predictor_init_state(s->predictor_k, s->predictor_state[ch], s->num_taps); intlist_read(&c, state, s->coded_samples[ch], s->block_align, 1); |