xref: /aosp_15_r20/external/pdfium/third_party/libopenjpeg/0006-tcd_init_tile.patch (revision 3ac0a46f773bac49fa9476ec2b1cf3f8da5ec3a4) 
1diff --git a/third_party/libopenjpeg/tcd.c b/third_party/libopenjpeg/tcd.c
2index 6442669d6..4c728d4c6 100644
3--- a/third_party/libopenjpeg/tcd.c
4+++ b/third_party/libopenjpeg/tcd.c
5@@ -819,6 +819,11 @@ static INLINE OPJ_BOOL opj_tcd_init_tile(opj_tcd_t *p_tcd, OPJ_UINT32 p_tile_no,
6         if (isEncoder) {
7             OPJ_SIZE_T l_tile_data_size;
8
9+            if (l_tilec->x0 >= l_tilec->x1 || l_tilec->y0 >= l_tilec->y1) {
10+                opj_event_msg(manager, EVT_ERROR, "Invalid tile data\n");
11+                return OPJ_FALSE;
12+            }
13+
14             /* compute l_data_size with overflow check */
15             OPJ_SIZE_T w = (OPJ_SIZE_T)(l_tilec->x1 - l_tilec->x0);
16             OPJ_SIZE_T h = (OPJ_SIZE_T)(l_tilec->y1 - l_tilec->y0);
17