Fixes: global-buffer-overflow
Fixes: 15247/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ATRAC9_fuzzer-5671602181636096
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
int cpe_base_channel;
int is_signs[30];
+ int reuseable;
+
} ATRAC9BlockData;
typedef struct ATRAC9Context {
if (!reuse_params) {
int stereo_band, ext_band;
const int min_band_count = s->samplerate_idx > 7 ? 1 : 3;
+ b->reuseable = 0;
b->band_count = get_bits(gb, 4) + min_band_count;
b->q_unit_cnt = at9_tab_band_q_unit_map[b->band_count];
}
b->band_ext_q_unit = at9_tab_band_q_unit_map[ext_band];
}
+ b->reuseable = 1;
+ }
+ if (!b->reuseable) {
+ av_log(s->avctx, AV_LOG_ERROR, "invalid block reused!\n");
+ return AVERROR_INVALIDDATA;
}
/* Calculate bit alloc gradient */