Fixes: out of array access
Fixes: 20763/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MAGICYUV_fuzzer-5759562508664832
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
return AVERROR_INVALIDDATA;
}
+ if (s->interlaced) {
+ if ((s->slice_height >> s->vshift[1]) < 2) {
+ av_log(avctx, AV_LOG_ERROR, "impossible slice height\n");
+ return AVERROR_INVALIDDATA;
+ }
+ if ((avctx->coded_height % s->slice_height) && ((avctx->coded_height % s->slice_height) >> s->vshift[1]) < 2) {
+ av_log(avctx, AV_LOG_ERROR, "impossible height\n");
+ return AVERROR_INVALIDDATA;
+ }
+ }
+
for (i = 0; i < s->planes; i++) {
av_fast_malloc(&s->slices[i], &s->slices_size[i], s->nb_slices * sizeof(Slice));
if (!s->slices[i])