Encode INTEGER correctly.

If an ASN1_INTEGER structure is allocated but not explicitly set encode
it as zero: don't generate an invalid zero length INTEGER.
(cherry picked from commit 1643edc63c3e15b6db5a15a728bc288f2cc2bbc7)

diff --git a/crypto/asn1/a_int.c b/crypto/asn1/a_int.c
index ad0d2506f63203679814cd36018f1dc9c4221b91..297c45a9ff12ebb54df717bd7c1f8487579daad4 100644 (file)
--- a/crypto/asn1/a_int.c
+++ b/crypto/asn1/a_int.c
@@ -116,7 +116,7 @@ int i2c_ASN1_INTEGER(ASN1_INTEGER *a, unsigned char **pp)
        int pad=0,ret,i,neg;
        unsigned char *p,*n,pb=0;
 
-       if ((a == NULL) || (a->data == NULL)) return(0);
+       if (a == NULL) return(0);
        neg=a->type & V_ASN1_NEG;
        if (a->length == 0)
                ret=1;