for (slice_x = 0; bufsize > 0 && slice_x < s->num_x; slice_x++) {
bytes = (slice_num+1) * (int64_t)s->lowdelay.bytes.num / s->lowdelay.bytes.den
- slice_num * (int64_t)s->lowdelay.bytes.num / s->lowdelay.bytes.den;
+ if (bytes >= INT_MAX || bytes*8 > bufsize) {
+ av_log(s->avctx, AV_LOG_ERROR, "too many bytes\n");
+ return AVERROR_INVALIDDATA;
+ }
slices[slice_num].bytes = bytes;
slices[slice_num].slice_x = slice_x;
slices[slice_num].slice_y = slice_y;
else {
s->num_x = get_interleaved_ue_golomb(gb);
s->num_y = get_interleaved_ue_golomb(gb);
- if (s->num_x * s->num_y == 0 || s->num_x * (uint64_t)s->num_y > INT_MAX) {
+ if (s->num_x * s->num_y == 0 || s->num_x * (uint64_t)s->num_y > INT_MAX ||
+ s->num_x * (uint64_t)s->avctx->width > INT_MAX ||
+ s->num_y * (uint64_t)s->avctx->height > INT_MAX
+ ) {
av_log(s->avctx,AV_LOG_ERROR,"Invalid numx/y\n");
s->num_x = s->num_y = 0;
return AVERROR_INVALIDDATA;