Fixes division by 0
Fixes:
b293a6479bb4b5286cff24d356bfd955/asan_generic_225c3c9_7819_cc526b657450c6cdef1371b526499626.mkv
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
height = bytestream_get_be16(&buf);
/* Make sure the bitmap is not too large */
- if (avctx->width < width || avctx->height < height) {
- av_log(avctx, AV_LOG_ERROR, "Bitmap dimensions larger than video.\n");
+ if (avctx->width < width || avctx->height < height || !width || !height) {
+ av_log(avctx, AV_LOG_ERROR, "Bitmap dimensions (%dx%d) invalid.\n", width, height);
return AVERROR_INVALIDDATA;
}