The choosen value is arbitrary. I am not sure if this is a good idea
but i dont immedeately see an alternative better way, it seems either
an arbitrary limit or OOM
Fixes: OOM
Fixes: 27492/clusterfuzz-testcase-minimized-ffmpeg_dem_MOV_fuzzer-6194970578649088
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
entries = avio_rb32(pb);
/* Each entry contains a size (4 bytes) and format (4 bytes). */
entries = avio_rb32(pb);
/* Each entry contains a size (4 bytes) and format (4 bytes). */
- if (entries <= 0 || entries > atom.size / 8) {
+ if (entries <= 0 || entries > atom.size / 8 || entries > 1024) {
av_log(c->fc, AV_LOG_ERROR, "invalid STSD entries %d\n", entries);
return AVERROR_INVALIDDATA;
}
av_log(c->fc, AV_LOG_ERROR, "invalid STSD entries %d\n", entries);
return AVERROR_INVALIDDATA;
}