Fixes: shift exponent 32 is too large for 32-bit type 'unsigned int'
Fixes: 15764/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALAC_fuzzer-5102101203517440
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
alac->extra_bits = get_bits(&alac->gb, 2) << 3;
bps = alac->sample_size - alac->extra_bits + channels - 1;
- if (bps > 32U) {
+ if (bps > 32) {
avpriv_report_missing_feature(avctx, "bps %d", bps);
return AVERROR_PATCHWELCOME;
}
+ if (bps < 1)
+ return AVERROR_INVALIDDATA;
/* whether the frame is compressed */
is_compressed = !get_bits1(&alac->gb);