1 diff --git a/third_party/libopenjpeg20/t1.c b/third_party/libopenjpeg20/t1.c 2 index a119db1f7..1ad850c77 100644 3 --- a/third_party/libopenjpeg20/t1.c 4 +++ b/third_party/libopenjpeg20/t1.c 5 @@ -1411,7 +1411,7 @@ static OPJ_BOOL opj_t1_decode_cblk(opj_t1_t *t1, 6 } 7 } 8 9 - for (passno = 0; passno < seg->real_num_passes; ++passno) { 10 + for (passno = 0; (passno < seg->real_num_passes) && (bpno_plus_one >= 1); ++passno) { 11 switch (passtype) { 12 case 0: 13 if (type == T1_TYPE_RAW) { 14