ssl/s3_srvr.c:3159: error: NULL_DEREFERENCE
  pointer `pkey` last assigned on line 3111 could be null and is dereferenced at line 3159, column 16.
Showing all 27 steps of the trace


ssl/s3_srvr.c:3087:1: start of procedure ssl3_get_cert_verify()
3085.   	}
3086.   
3087. > int ssl3_get_cert_verify(SSL *s)
3088.   	{
3089.   	EVP_PKEY *pkey=NULL;

ssl/s3_srvr.c:3089:2: 
3087.   int ssl3_get_cert_verify(SSL *s)
3088.   	{
3089. > 	EVP_PKEY *pkey=NULL;
3090.   	unsigned char *p;
3091.   	int al,ok,ret=0;

ssl/s3_srvr.c:3091:2: 
3089.   	EVP_PKEY *pkey=NULL;
3090.   	unsigned char *p;
3091. > 	int al,ok,ret=0;
3092.   	long n;
3093.   	int type=0,i,j;

ssl/s3_srvr.c:3093:2: 
3091.   	int al,ok,ret=0;
3092.   	long n;
3093. > 	int type=0,i,j;
3094.   	X509 *peer;
3095.   	const EVP_MD *md = NULL;

ssl/s3_srvr.c:3095:2: 
3093.   	int type=0,i,j;
3094.   	X509 *peer;
3095. > 	const EVP_MD *md = NULL;
3096.   	EVP_MD_CTX mctx;
3097.   	EVP_MD_CTX_init(&mctx);

ssl/s3_srvr.c:3097:2: 
3095.   	const EVP_MD *md = NULL;
3096.   	EVP_MD_CTX mctx;
3097. > 	EVP_MD_CTX_init(&mctx);
3098.   
3099.   	n=s->method->ssl_get_message(s,

crypto/evp/digest.c:120:1: start of procedure EVP_MD_CTX_init()
  118.   #endif
  119.   
  120. > void EVP_MD_CTX_init(EVP_MD_CTX *ctx)
  121.   	{
  122.   	memset(ctx,'\0',sizeof *ctx);

crypto/evp/digest.c:122:2: 
  120.   void EVP_MD_CTX_init(EVP_MD_CTX *ctx)
  121.   	{
  122. > 	memset(ctx,'\0',sizeof *ctx);
  123.   	}
  124.   

crypto/evp/digest.c:123:2: return from a call to EVP_MD_CTX_init
  121.   	{
  122.   	memset(ctx,'\0',sizeof *ctx);
  123.   	}
          ^
  124.   
  125.   EVP_MD_CTX *EVP_MD_CTX_create(void)

ssl/s3_srvr.c:3099:2: Skipping __function_pointer__(): unresolved function pointer
3097.   	EVP_MD_CTX_init(&mctx);
3098.   
3099.   	n=s->method->ssl_get_message(s,
         ^
3100.   		SSL3_ST_SR_CERT_VRFY_A,
3101.   		SSL3_ST_SR_CERT_VRFY_B,

ssl/s3_srvr.c:3106:7: Taking false branch
3104.   		&ok);
3105.   
3106.   	if (!ok) return((int)n);
              ^
3107.   
3108.   	if (s->session->peer != NULL)

ssl/s3_srvr.c:3108:6: Taking true branch
3106.   	if (!ok) return((int)n);
3107.   
3108.   	if (s->session->peer != NULL)
             ^
3109.   		{
3110.   		peer=s->session->peer;

ssl/s3_srvr.c:3110:3: 
3108.   	if (s->session->peer != NULL)
3109.   		{
3110. > 		peer=s->session->peer;
3111.   		pkey=X509_get_pubkey(peer);
3112.   		type=X509_certificate_type(peer,pkey);

ssl/s3_srvr.c:3111:3: 
3109.   		{
3110.   		peer=s->session->peer;
3111. > 		pkey=X509_get_pubkey(peer);
3112.   		type=X509_certificate_type(peer,pkey);
3113.   		}

crypto/x509/x509_cmp.c:313:1: start of procedure X509_get_pubkey()
  311.   	}
  312.   
  313. > EVP_PKEY *X509_get_pubkey(X509 *x)
  314.   	{
  315.   	if ((x == NULL) || (x->cert_info == NULL))

crypto/x509/x509_cmp.c:315:7: Taking false branch
  313.   EVP_PKEY *X509_get_pubkey(X509 *x)
  314.   	{
  315.   	if ((x == NULL) || (x->cert_info == NULL))
               ^
  316.   		return(NULL);
  317.   	return(X509_PUBKEY_get(x->cert_info->key));

crypto/x509/x509_cmp.c:315:22: Taking true branch
  313.   EVP_PKEY *X509_get_pubkey(X509 *x)
  314.   	{
  315.   	if ((x == NULL) || (x->cert_info == NULL))
                              ^
  316.   		return(NULL);
  317.   	return(X509_PUBKEY_get(x->cert_info->key));

crypto/x509/x509_cmp.c:316:3: 
  314.   	{
  315.   	if ((x == NULL) || (x->cert_info == NULL))
  316. > 		return(NULL);
  317.   	return(X509_PUBKEY_get(x->cert_info->key));
  318.   	}

crypto/x509/x509_cmp.c:318:2: return from a call to X509_get_pubkey
  316.   		return(NULL);
  317.   	return(X509_PUBKEY_get(x->cert_info->key));
  318.   	}
          ^
  319.   
  320.   ASN1_BIT_STRING *X509_get0_pubkey_bitstr(const X509 *x)

ssl/s3_srvr.c:3112:3: Skipping X509_certificate_type(): empty list of specs
3110.   		peer=s->session->peer;
3111.   		pkey=X509_get_pubkey(peer);
3112.   		type=X509_certificate_type(peer,pkey);
          ^
3113.   		}
3114.   	else

ssl/s3_srvr.c:3120:6: Taking false branch
3118.   		}
3119.   
3120.   	if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE_VERIFY)
             ^
3121.   		{
3122.   		s->s3->tmp.reuse_message=1;

ssl/s3_srvr.c:3133:6: Taking false branch
3131.   		}
3132.   
3133.   	if (peer == NULL)
             ^
3134.   		{
3135.   		SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_NO_CLIENT_CERT_RECEIVED);

ssl/s3_srvr.c:3140:8: Taking false branch
3138.   		}
3139.   
3140.   	if (!(type & EVP_PKT_SIGN))
               ^
3141.   		{
3142.   		SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_SIGNATURE_FOR_NON_SIGNING_CERTIFICATE);

ssl/s3_srvr.c:3147:6: Taking false branch
3145.   		}
3146.   
3147.   	if (s->s3->change_cipher_spec)
             ^
3148.   		{
3149.   		SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_CCS_RECEIVED_EARLY);

ssl/s3_srvr.c:3155:2: 
3153.   
3154.   	/* we now have a signature that we need to verify */
3155. > 	p=(unsigned char *)s->init_msg;
3156.   	/* Check for broken implementations of GOST ciphersuites */
3157.   	/* If key is GOST and n is exactly 64, it is bare

ssl/s3_srvr.c:3159:6: Taking true branch
3157.   	/* If key is GOST and n is exactly 64, it is bare
3158.   	 * signature without length field */
3159.   	if (n==64 && (pkey->type==NID_id_GostR3410_94 ||
             ^
3160.   		pkey->type == NID_id_GostR3410_2001) )
3161.   		{

ssl/s3_srvr.c:3159:16: 
3157.   	/* If key is GOST and n is exactly 64, it is bare
3158.   	 * signature without length field */
3159. > 	if (n==64 && (pkey->type==NID_id_GostR3410_94 ||
3160.   		pkey->type == NID_id_GostR3410_2001) )
3161.   		{
