Ignore zero length constructed segments.

diff --git a/crypto/asn1/tasn_dec.c b/crypto/asn1/tasn_dec.c
index f369fcb9bb8c3c3973cce3667e4fbd57413aed02..ffec26f2f3269f95b858934151ef4ca4cc1a6920 100644 (file)
--- a/crypto/asn1/tasn_dec.c
+++ b/crypto/asn1/tasn_dec.c
@@ -1169,7 +1169,7 @@ static int asn1_collect(BUF_MEM *buf, const unsigned char **in, long len,
                        return 0;
 #endif
                        }
                        return 0;
 #endif
                        }

-               else if (!collect_data(buf, &p, plen))
+               else if (plen && !collect_data(buf, &p, plen))

                        return 0;
                len -= p - q;
                }
                        return 0;
                len -= p - q;
                }