This fixes crashes caused by out-of-bounds writes.
Reviewed-by: Rostislav Pehlivanov <atomnuker@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
hdr->fpr = bytestream2_get_byte(&gb);
hdr->format.planes = bytestream2_get_byte(&gb);
+ if (hdr->format.planes > 4) {
+ av_log(s, AV_LOG_ERROR,
+ "Invalid number of planes %d in daala pixel format map.\n",
+ hdr->format.planes);
+ return AVERROR_INVALIDDATA;
+ }
for (i = 0; i < hdr->format.planes; i++) {
hdr->format.xdec[i] = bytestream2_get_byte(&gb);
hdr->format.ydec[i] = bytestream2_get_byte(&gb);