Fix some missing inits

Reviewed-by: NRichard Levitte <levitte@openssl.org>
Reviewed-by: NMatt Caswell <matt@openssl.org>
Reviewed-by: NRich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/997)

crypto/asn1/a_strnid.c

@@ -213,6 +213,7 @@ static ASN1_STRING_TABLE *stable_get(int nid)
         rv->mask = tmp->mask;
         rv->flags = tmp->flags | STABLE_FLAGS_MALLOC;
     } else {
+        rv->nid = NID_undef;
         rv->minsize = -1;
         rv->maxsize = -1;
         rv->mask = 0;

crypto/asn1/bio_asn1.c

@@ -96,6 +96,7 @@ const BIO_METHOD *BIO_f_asn1(void)
 static int asn1_bio_new(BIO *b)
 {
     BIO_ASN1_BUF_CTX *ctx;
+
     ctx = OPENSSL_malloc(sizeof(*ctx));
     if (ctx == NULL)
         return 0;
@@ -120,10 +121,12 @@ static int asn1_bio_init(BIO_ASN1_BUF_CTX *ctx, int size)
     ctx->copylen = 0;
     ctx->asn1_class = V_ASN1_UNIVERSAL;
     ctx->asn1_tag = V_ASN1_OCTET_STRING;
-    ctx->ex_buf = 0;
-    ctx->ex_pos = 0;
+    ctx->ex_buf = NULL;
     ctx->ex_len = 0;
+    ctx->ex_pos = 0;
     ctx->state = ASN1_STATE_START;
+    ctx->prefix = ctx->prefix_free = ctx->suffix = ctx->suffix_free = NULL;
+    ctx->ex_arg = NULL;
     return 1;
 }
 

crypto/asn1/bio_ndef.c

@@ -90,6 +90,7 @@ BIO *BIO_new_NDEF(BIO *out, ASN1_VALUE *val, const ASN1_ITEM *it)
     ndef_aux->ndef_bio = sarg.ndef_bio;
     ndef_aux->boundary = sarg.boundary;
     ndef_aux->out = out;
+    ndef_aux->derbuf = NULL;
 
     BIO_ctrl(asn_bio, BIO_C_SET_EX_ARG, 0, ndef_aux);
 

crypto/asn1/tasn_scn.c

@@ -25,12 +25,20 @@
 ASN1_SCTX *ASN1_SCTX_new(int (*scan_cb) (ASN1_SCTX *ctx))
 {
     ASN1_SCTX *ret;
+
     ret = OPENSSL_malloc(sizeof(*ret));
     if (ret == NULL) {
         ASN1err(ASN1_F_ASN1_SCTX_NEW, ERR_R_MALLOC_FAILURE);
         return NULL;
     }
+    ret->it = ret->tt = NULL;
+    ret->flags = 0;
+    ret->skidx = ret->depth = 0;
+    ret->sname = ret->fname = NULL;
+    ret->prim_type = 0;
+    ret->field = NULL;
     ret->scan_cb = scan_cb;
+    ret->app_data = NULL;
     return ret;
 }
 

crypto/bio/bss_bio.c

@@ -81,9 +81,13 @@ static int bio_new(BIO *bio)
         return 0;
 
     b->peer = NULL;
+    b->closed = 0;
+    b->len = 0;
+    b->offset = 0;
     /* enough for one TLS record (just a default) */
     b->size = 17 * 1024;
     b->buf = NULL;
+    b->request = 0;
 
     bio->ptr = b;
     return 1;