Message ID | 20191004175942.14310-4-michael@niedermayer.cc |
---|---|
State | Accepted |
Commit | 09581f7923ed9af7719762868e8f1ff626ea8374 |
Headers | show |
diff --git a/libavcodec/alsdec.c b/libavcodec/alsdec.c index fafc3a757b..4bc0e2bd84 100644 --- a/libavcodec/alsdec.c +++ b/libavcodec/alsdec.c @@ -1475,6 +1475,9 @@ static int read_diff_float_data(ALSDecContext *ctx, unsigned int ra_frame) { ff_mlz_flush_dict(ctx->mlz); } + if (avctx->channels * 8 > get_bits_left(gb)) + return AVERROR_INVALIDDATA; + for (c = 0; c < avctx->channels; ++c) { if (use_acf) { //acf_flag
Fixes: Timeout (21sec -> 8sec) Fixes: 17832/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALS_fuzzer-5737092172218368 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/alsdec.c | 3 +++ 1 file changed, 3 insertions(+)