| diff --git a/third_party/libopenjpeg20/tcd.c b/third_party/libopenjpeg20/tcd.c |
| index f0710cd14..35d15e3d1 100644 |
| --- a/third_party/libopenjpeg20/tcd.c |
| +++ b/third_party/libopenjpeg20/tcd.c |
| @@ -1040,9 +1040,15 @@ static INLINE OPJ_BOOL opj_tcd_init_tile(opj_tcd_t *p_tcd, OPJ_UINT32 p_tile_no, |
| cblkwidthexpn); |
| l_current_precinct->ch = (OPJ_UINT32)((brcblkyend - tlcblkystart) >> |
| cblkheightexpn); |
| - |
| + if (l_current_precinct->cw && ((OPJ_UINT32)-1) / l_current_precinct->cw < l_current_precinct->ch) { |
| + return OPJ_FALSE; |
| + } |
| l_nb_code_blocks = l_current_precinct->cw * l_current_precinct->ch; |
| /*fprintf(stderr, "\t\t\t\t precinct_cw = %d x recinct_ch = %d\n",l_current_precinct->cw, l_current_precinct->ch); */ |
| + |
| + if (((OPJ_UINT32)-1) / (OPJ_UINT32)sizeof_block < l_nb_code_blocks) { |
| + return OPJ_FALSE; |
| + } |
| l_nb_code_blocks_size = l_nb_code_blocks * (OPJ_UINT32)sizeof_block; |
| |
| if (!l_current_precinct->cblks.blocks && (l_nb_code_blocks > 0U)) { |