File openjpeg2-CVE-2020-8112.patch of Package openjpeg2.26562

Index: openjpeg-2.1.0/src/lib/openjp2/tcd.c
===================================================================
--- openjpeg-2.1.0.orig/src/lib/openjp2/tcd.c
+++ openjpeg-2.1.0/src/lib/openjp2/tcd.c
@@ -783,8 +783,22 @@ OPJ_BOOL FUNCTION (     opj_tcd_t *p_tcd
                         /* 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) { \
+                                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) { \
+                                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) ? 0 : (OPJ_UINT32)((l_br_prc_x_end - l_tl_prc_x_start) >> l_pdx);                                                                                                \