d2i: don't update input pointer on failure

[openssl.git] / crypto / x509v3 / v3_scts.c

diff --git a/crypto/x509v3/v3_scts.c b/crypto/x509v3/v3_scts.c
index f93fdfc2baee6f47de6e20a64ddf9d0f78fd1290..b1505feb35bb0d31d4110b103c62d359855e5577 100644 (file)
--- a/crypto/x509v3/v3_scts.c
+++ b/crypto/x509v3/v3_scts.c
@@ -183,8 +183,9 @@ static STACK_OF(SCT) *d2i_SCT_LIST(STACK_OF(SCT) **a,
     SCT *sct;
     unsigned char *p, *p2;
     unsigned short listlen, sctlen = 0, fieldlen;
+    const unsigned char *q = *pp;
 
-    if (d2i_ASN1_OCTET_STRING(&oct, pp, length) == NULL)
+    if (d2i_ASN1_OCTET_STRING(&oct, &q, length) == NULL)
         return NULL;
     if (oct->length < 2)
         goto done;
@@ -272,6 +273,7 @@ static STACK_OF(SCT) *d2i_SCT_LIST(STACK_OF(SCT) **a,
 
  done:
     ASN1_OCTET_STRING_free(oct);
+    *pp = q;
     return sk;
 
  err: