diff options
Diffstat (limited to 'chromium/third_party/pdfium/third_party/libopenjpeg20/tcd.c')
| -rw-r--r-- | chromium/third_party/pdfium/third_party/libopenjpeg20/tcd.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/chromium/third_party/pdfium/third_party/libopenjpeg20/tcd.c b/chromium/third_party/pdfium/third_party/libopenjpeg20/tcd.c index 2ae211ef45a..9e98f04ab8b 100644 --- a/chromium/third_party/pdfium/third_party/libopenjpeg20/tcd.c +++ b/chromium/third_party/pdfium/third_party/libopenjpeg20/tcd.c @@ -910,8 +910,24 @@ static INLINE OPJ_BOOL opj_tcd_init_tile(opj_tcd_t *p_tcd, OPJ_UINT32 p_tile_no, /* p. 64, B.6, ISO/IEC FDIS15444-1 : 2000 (18 august 2000) */ l_tl_prc_x_start = opj_int_floordivpow2(l_res->x0, (OPJ_INT32)l_pdx) << l_pdx; l_tl_prc_y_start = opj_int_floordivpow2(l_res->y0, (OPJ_INT32)l_pdy) << l_pdy; - l_br_prc_x_end = opj_int_ceildivpow2(l_res->x1, (OPJ_INT32)l_pdx) << l_pdx; - l_br_prc_y_end = opj_int_ceildivpow2(l_res->y1, (OPJ_INT32)l_pdy) << l_pdy; + { + OPJ_UINT32 tmp = ((OPJ_UINT32)opj_int_ceildivpow2(l_res->x1, + (OPJ_INT32)l_pdx)) << l_pdx; + if (tmp > (OPJ_UINT32)INT_MAX) { + opj_event_msg(manager, EVT_ERROR, "Integer overflow\n"); + return OPJ_FALSE; + } + l_br_prc_x_end = (OPJ_INT32)tmp; + } + { + OPJ_UINT32 tmp = ((OPJ_UINT32)opj_int_ceildivpow2(l_res->y1, + (OPJ_INT32)l_pdy)) << l_pdy; + if (tmp > (OPJ_UINT32)INT_MAX) { + opj_event_msg(manager, EVT_ERROR, "Integer overflow\n"); + return OPJ_FALSE; + } + l_br_prc_y_end = (OPJ_INT32)tmp; + } /*fprintf(stderr, "\t\t\tprc_x_start=%d, prc_y_start=%d, br_prc_x_end=%d, br_prc_y_end=%d \n", l_tl_prc_x_start, l_tl_prc_y_start, l_br_prc_x_end ,l_br_prc_y_end );*/ l_res->pw = (l_res->x0 == l_res->x1) ? 0U : (OPJ_UINT32)(( |