| diff --git a/third_party/libopenjpeg20/tcd.c b/third_party/libopenjpeg20/tcd.c |
| index 1dd15405d..acc28dd55 100644 |
| --- a/third_party/libopenjpeg20/tcd.c |
| +++ b/third_party/libopenjpeg20/tcd.c |
| @@ -818,6 +818,11 @@ static INLINE OPJ_BOOL opj_tcd_init_tile(opj_tcd_t *p_tcd, OPJ_UINT32 p_tile_no, |
| if (isEncoder) { |
| OPJ_SIZE_T l_tile_data_size; |
| |
| + if (l_tilec->x0 >= l_tilec->x1 || l_tilec->y0 >= l_tilec->y1) { |
| + opj_event_msg(manager, EVT_ERROR, "Invalid tile data\n"); |
| + return OPJ_FALSE; |
| + } |
| + |
| /* compute l_data_size with overflow check */ |
| OPJ_SIZE_T w = (OPJ_SIZE_T)(l_tilec->x1 - l_tilec->x0); |
| OPJ_SIZE_T h = (OPJ_SIZE_T)(l_tilec->y1 - l_tilec->y0); |