diff options
Diffstat (limited to 'third_party/libopenjpeg20/0019-tcd_init_tile.patch')
| -rw-r--r-- | third_party/libopenjpeg20/0019-tcd_init_tile.patch | 45 |
1 files changed, 18 insertions, 27 deletions
diff --git a/third_party/libopenjpeg20/0019-tcd_init_tile.patch b/third_party/libopenjpeg20/0019-tcd_init_tile.patch index d8e18facc9..fc5a3aac91 100644 --- a/third_party/libopenjpeg20/0019-tcd_init_tile.patch +++ b/third_party/libopenjpeg20/0019-tcd_init_tile.patch @@ -1,30 +1,21 @@ -diff --git a/third_party/libopenjpeg20/README.pdfium b/third_party/libopenjpeg20/README.pdfium -index a9e289d..b1012af 100644 ---- a/third_party/libopenjpeg20/README.pdfium -+++ b/third_party/libopenjpeg20/README.pdfium -@@ -28,4 +28,5 @@ Local Modifications: - 0016-read_SQcd_SQcc_overflow.patch: Prevent a buffer overflow in opj_j2k_read_SQcd_SQcc. - 0017-tcd_init_tile.patch: Prevent integer overflows during calculation of |l_nb_precinct_size|. - 0018-tcd_get_decoded_tile_size.patch: Fix an integer overflow in opj_tcd_get_decoded_tile_size. -+0019-tcd_init_tile.patch: Prevent integer overflows during calculation of |l_nb_code_blocks_size|. - TODO(thestig): List all the other patches. diff --git a/third_party/libopenjpeg20/tcd.c b/third_party/libopenjpeg20/tcd.c -index cd1c439..9270efe 100644 +index f0710cd14..35d15e3d1 100644 --- a/third_party/libopenjpeg20/tcd.c +++ b/third_party/libopenjpeg20/tcd.c -@@ -939,8 +939,15 @@ static INLINE OPJ_BOOL opj_tcd_init_tile(opj_tcd_t *p_tcd, OPJ_UINT32 p_tile_no, - l_current_precinct->cw = (OPJ_UINT32)((brcblkxend - tlcblkxstart) >> 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) { +@@ -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)) { |