Fixes: signed integer overflow: 617890810133996544 * 16 cannot be represented in type 'long'
Fixes: 26565/clusterfuzz-testcase-minimized-ffmpeg_dem_MV_fuzzer-5092054700654592
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
break;
case AVMEDIA_TYPE_AUDIO:
bits_per_sample = av_get_bits_per_sample(ctx->codec_id);
- bit_rate = bits_per_sample ? ctx->sample_rate * (int64_t)ctx->channels * bits_per_sample : ctx->bit_rate;
+ if (bits_per_sample) {
+ bit_rate = ctx->sample_rate * (int64_t)ctx->channels;
+ if (bit_rate > INT64_MAX / bits_per_sample) {
+ bit_rate = 0;
+ } else
+ bit_rate *= bits_per_sample;
+ } else
+ bit_rate = ctx->bit_rate;
break;
default:
bit_rate = 0;