Fixes: signed integer overflow: 19922944 * 1024 cannot be represented in type 'int'
Fixes: 26402/clusterfuzz-testcase-minimized-ffmpeg_dem_VMD_fuzzer-5745470053548032
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
case 5: st->codecpar->codec_id = st->codecpar->block_align > 0 ?
AV_CODEC_ID_PCM_S8_PLANAR :
AV_CODEC_ID_PCM_S8; break;
- case 6: st->codecpar->codec_id = AV_CODEC_ID_SDX2_DPCM; break;
+ case 6: if (st->codecpar->block_align > INT_MAX/1024)
+ return AVERROR_INVALIDDATA;
+ st->codecpar->codec_id = AV_CODEC_ID_SDX2_DPCM; break;
case 7: ret = ff_alloc_extradata(st->codecpar, 2);
if (ret < 0)
return ret;