crypto/x509/x509_vfy.c:572: error: NULL_DEREFERENCE
  pointer `x` last assigned on line 570 could be null and is dereferenced at line 572, column 13.
Showing all 66 steps of the trace


crypto/x509/x509_vfy.c:563:1: start of procedure check_name_constraints()
561.   }
562.   
563. > static int check_name_constraints(X509_STORE_CTX *ctx)
564.   	{
565.   	X509 *x;

crypto/x509/x509_vfy.c:568:11: Condition is true
566.   	int i, j, rv;
567.   	/* Check name constraints for all certificates */
568.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
                 ^
569.   		{
570.   		x = sk_X509_value(ctx->chain, i);

crypto/x509/x509_vfy.c:568:7: 
566.   	int i, j, rv;
567.   	/* Check name constraints for all certificates */
568. > 	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
569.   		{
570.   		x = sk_X509_value(ctx->chain, i);

crypto/stack/stack.c:302:1: start of procedure sk_num()
  300.   	}
  301.   
  302. > int sk_num(const _STACK *st)
  303.   {
  304.   	if(st == NULL) return -1;

crypto/stack/stack.c:304:5: Taking false branch
  302.   int sk_num(const _STACK *st)
  303.   {
  304.   	if(st == NULL) return -1;
             ^
  305.   	return st->num;
  306.   }

crypto/stack/stack.c:305:2: 
  303.   {
  304.   	if(st == NULL) return -1;
  305. > 	return st->num;
  306.   }
  307.   

crypto/stack/stack.c:306:1: return from a call to sk_num
  304.   	if(st == NULL) return -1;
  305.   	return st->num;
  306. > }
  307.   
  308.   void *sk_value(const _STACK *st, int i)

crypto/x509/x509_vfy.c:568:40: Loop condition is true. Entering loop body
566.   	int i, j, rv;
567.   	/* Check name constraints for all certificates */
568.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
                                              ^
569.   		{
570.   		x = sk_X509_value(ctx->chain, i);

crypto/x509/x509_vfy.c:570:7: Condition is true
568.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
569.   		{
570.   		x = sk_X509_value(ctx->chain, i);
             ^
571.   		/* Ignore self issued certs unless last in chain */
572.   		if (i && (x->ex_flags & EXFLAG_SI))

crypto/x509/x509_vfy.c:570:3: 
568.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
569.   		{
570. > 		x = sk_X509_value(ctx->chain, i);
571.   		/* Ignore self issued certs unless last in chain */
572.   		if (i && (x->ex_flags & EXFLAG_SI))

crypto/stack/stack.c:308:1: start of procedure sk_value()
  306.   }
  307.   
  308. > void *sk_value(const _STACK *st, int i)
  309.   {
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;

crypto/stack/stack.c:310:6: Taking false branch
  308.   void *sk_value(const _STACK *st, int i)
  309.   {
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
              ^
  311.   	return st->data[i];
  312.   }

crypto/stack/stack.c:310:13: Taking false branch
  308.   void *sk_value(const _STACK *st, int i)
  309.   {
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
                     ^
  311.   	return st->data[i];
  312.   }

crypto/stack/stack.c:310:24: Taking false branch
  308.   void *sk_value(const _STACK *st, int i)
  309.   {
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
                                ^
  311.   	return st->data[i];
  312.   }

crypto/stack/stack.c:311:2: 
  309.   {
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
  311. > 	return st->data[i];
  312.   }
  313.   

crypto/stack/stack.c:312:1: return from a call to sk_value
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
  311.   	return st->data[i];
  312. > }
  313.   
  314.   void *sk_set(_STACK *st, int i, void *value)

crypto/x509/x509_vfy.c:572:7: Taking true branch
570.   		x = sk_X509_value(ctx->chain, i);
571.   		/* Ignore self issued certs unless last in chain */
572.   		if (i && (x->ex_flags & EXFLAG_SI))
             ^
573.   			continue;
574.   		/* Check against constraints for all certificates higher in

crypto/x509/x509_vfy.c:572:13: Taking true branch
570.   		x = sk_X509_value(ctx->chain, i);
571.   		/* Ignore self issued certs unless last in chain */
572.   		if (i && (x->ex_flags & EXFLAG_SI))
                   ^
573.   			continue;
574.   		/* Check against constraints for all certificates higher in

crypto/x509/x509_vfy.c:568:48: 
566.   	int i, j, rv;
567.   	/* Check name constraints for all certificates */
568. > 	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
569.   		{
570.   		x = sk_X509_value(ctx->chain, i);

crypto/x509/x509_vfy.c:568:40: Loop condition is true. Entering loop body
566.   	int i, j, rv;
567.   	/* Check name constraints for all certificates */
568.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
                                              ^
569.   		{
570.   		x = sk_X509_value(ctx->chain, i);

crypto/x509/x509_vfy.c:570:7: Condition is true
568.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
569.   		{
570.   		x = sk_X509_value(ctx->chain, i);
             ^
571.   		/* Ignore self issued certs unless last in chain */
572.   		if (i && (x->ex_flags & EXFLAG_SI))

crypto/x509/x509_vfy.c:570:3: 
568.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
569.   		{
570. > 		x = sk_X509_value(ctx->chain, i);
571.   		/* Ignore self issued certs unless last in chain */
572.   		if (i && (x->ex_flags & EXFLAG_SI))

crypto/stack/stack.c:308:1: start of procedure sk_value()
  306.   }
  307.   
  308. > void *sk_value(const _STACK *st, int i)
  309.   {
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;

crypto/stack/stack.c:310:6: Taking false branch
  308.   void *sk_value(const _STACK *st, int i)
  309.   {
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
              ^
  311.   	return st->data[i];
  312.   }

crypto/stack/stack.c:310:13: Taking false branch
  308.   void *sk_value(const _STACK *st, int i)
  309.   {
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
                     ^
  311.   	return st->data[i];
  312.   }

crypto/stack/stack.c:310:24: Taking false branch
  308.   void *sk_value(const _STACK *st, int i)
  309.   {
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
                                ^
  311.   	return st->data[i];
  312.   }

crypto/stack/stack.c:311:2: 
  309.   {
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
  311. > 	return st->data[i];
  312.   }
  313.   

crypto/stack/stack.c:312:1: return from a call to sk_value
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
  311.   	return st->data[i];
  312. > }
  313.   
  314.   void *sk_set(_STACK *st, int i, void *value)

crypto/x509/x509_vfy.c:572:7: Taking true branch
570.   		x = sk_X509_value(ctx->chain, i);
571.   		/* Ignore self issued certs unless last in chain */
572.   		if (i && (x->ex_flags & EXFLAG_SI))
             ^
573.   			continue;
574.   		/* Check against constraints for all certificates higher in

crypto/x509/x509_vfy.c:572:13: Taking false branch
570.   		x = sk_X509_value(ctx->chain, i);
571.   		/* Ignore self issued certs unless last in chain */
572.   		if (i && (x->ex_flags & EXFLAG_SI))
                   ^
573.   			continue;
574.   		/* Check against constraints for all certificates higher in

crypto/x509/x509_vfy.c:579:12: Condition is true
577.   		 * assumed it expects them to be obeyed.
578.   		 */
579.   		for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
                  ^
580.   			{
581.   			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;

crypto/x509/x509_vfy.c:579:8: 
577.   		 * assumed it expects them to be obeyed.
578.   		 */
579. > 		for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
580.   			{
581.   			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;

crypto/stack/stack.c:302:1: start of procedure sk_num()
  300.   	}
  301.   
  302. > int sk_num(const _STACK *st)
  303.   {
  304.   	if(st == NULL) return -1;

crypto/stack/stack.c:304:5: Taking false branch
  302.   int sk_num(const _STACK *st)
  303.   {
  304.   	if(st == NULL) return -1;
             ^
  305.   	return st->num;
  306.   }

crypto/stack/stack.c:305:2: 
  303.   {
  304.   	if(st == NULL) return -1;
  305. > 	return st->num;
  306.   }
  307.   

crypto/stack/stack.c:306:1: return from a call to sk_num
  304.   	if(st == NULL) return -1;
  305.   	return st->num;
  306. > }
  307.   
  308.   void *sk_value(const _STACK *st, int i)

crypto/x509/x509_vfy.c:579:41: Loop condition is true. Entering loop body
577.   		 * assumed it expects them to be obeyed.
578.   		 */
579.   		for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
                                               ^
580.   			{
581.   			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;

crypto/x509/x509_vfy.c:581:27: Condition is true
579.   		for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
580.   			{
581.   			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;
                                 ^
582.   			if (nc)
583.   				{

crypto/x509/x509_vfy.c:581:4: 
579.   		for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
580.   			{
581. > 			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;
582.   			if (nc)
583.   				{

crypto/stack/stack.c:308:1: start of procedure sk_value()
  306.   }
  307.   
  308. > void *sk_value(const _STACK *st, int i)
  309.   {
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;

crypto/stack/stack.c:310:6: Taking false branch
  308.   void *sk_value(const _STACK *st, int i)
  309.   {
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
              ^
  311.   	return st->data[i];
  312.   }

crypto/stack/stack.c:310:13: Taking false branch
  308.   void *sk_value(const _STACK *st, int i)
  309.   {
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
                     ^
  311.   	return st->data[i];
  312.   }

crypto/stack/stack.c:310:24: Taking false branch
  308.   void *sk_value(const _STACK *st, int i)
  309.   {
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
                                ^
  311.   	return st->data[i];
  312.   }

crypto/stack/stack.c:311:2: 
  309.   {
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
  311. > 	return st->data[i];
  312.   }
  313.   

crypto/stack/stack.c:312:1: return from a call to sk_value
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
  311.   	return st->data[i];
  312. > }
  313.   
  314.   void *sk_set(_STACK *st, int i, void *value)

crypto/x509/x509_vfy.c:582:8: Taking true branch
580.   			{
581.   			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;
582.   			if (nc)
              ^
583.   				{
584.   				rv = NAME_CONSTRAINTS_check(x, nc);

crypto/x509/x509_vfy.c:584:5: Skipping NAME_CONSTRAINTS_check(): empty list of specs
582.   			if (nc)
583.   				{
584.   				rv = NAME_CONSTRAINTS_check(x, nc);
           ^
585.   				if (rv != X509_V_OK)
586.   					{

crypto/x509/x509_vfy.c:585:9: Taking true branch
583.   				{
584.   				rv = NAME_CONSTRAINTS_check(x, nc);
585.   				if (rv != X509_V_OK)
               ^
586.   					{
587.   					ctx->error = rv;

crypto/x509/x509_vfy.c:587:6: 
585.   				if (rv != X509_V_OK)
586.   					{
587. > 					ctx->error = rv;
588.   					ctx->error_depth = i;
589.   					ctx->current_cert = x;

crypto/x509/x509_vfy.c:588:6: 
586.   					{
587.   					ctx->error = rv;
588. > 					ctx->error_depth = i;
589.   					ctx->current_cert = x;
590.   					if (!ctx->verify_cb(0,ctx))

crypto/x509/x509_vfy.c:589:6: 
587.   					ctx->error = rv;
588.   					ctx->error_depth = i;
589. > 					ctx->current_cert = x;
590.   					if (!ctx->verify_cb(0,ctx))
591.   						return 0;

crypto/x509/x509_vfy.c:590:11: Taking false branch
588.   					ctx->error_depth = i;
589.   					ctx->current_cert = x;
590.   					if (!ctx->verify_cb(0,ctx))
                 ^
591.   						return 0;
592.   					}

crypto/x509/x509_vfy.c:579:48: 
577.   		 * assumed it expects them to be obeyed.
578.   		 */
579. > 		for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
580.   			{
581.   			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;

crypto/x509/x509_vfy.c:579:41: Loop condition is false. Leaving loop
577.   		 * assumed it expects them to be obeyed.
578.   		 */
579.   		for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
                                               ^
580.   			{
581.   			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;

crypto/x509/x509_vfy.c:568:48: 
566.   	int i, j, rv;
567.   	/* Check name constraints for all certificates */
568. > 	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
569.   		{
570.   		x = sk_X509_value(ctx->chain, i);

crypto/x509/x509_vfy.c:568:40: Loop condition is true. Entering loop body
566.   	int i, j, rv;
567.   	/* Check name constraints for all certificates */
568.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
                                              ^
569.   		{
570.   		x = sk_X509_value(ctx->chain, i);

crypto/x509/x509_vfy.c:570:7: Condition is true
568.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
569.   		{
570.   		x = sk_X509_value(ctx->chain, i);
             ^
571.   		/* Ignore self issued certs unless last in chain */
572.   		if (i && (x->ex_flags & EXFLAG_SI))

crypto/x509/x509_vfy.c:570:3: 
568.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
569.   		{
570. > 		x = sk_X509_value(ctx->chain, i);
571.   		/* Ignore self issued certs unless last in chain */
572.   		if (i && (x->ex_flags & EXFLAG_SI))

crypto/stack/stack.c:308:1: start of procedure sk_value()
  306.   }
  307.   
  308. > void *sk_value(const _STACK *st, int i)
  309.   {
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;

crypto/stack/stack.c:310:6: Taking false branch
  308.   void *sk_value(const _STACK *st, int i)
  309.   {
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
              ^
  311.   	return st->data[i];
  312.   }

crypto/stack/stack.c:310:13: Taking false branch
  308.   void *sk_value(const _STACK *st, int i)
  309.   {
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
                     ^
  311.   	return st->data[i];
  312.   }

crypto/stack/stack.c:310:24: Taking true branch
  308.   void *sk_value(const _STACK *st, int i)
  309.   {
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
                                ^
  311.   	return st->data[i];
  312.   }

crypto/stack/stack.c:310:39: 
  308.   void *sk_value(const _STACK *st, int i)
  309.   {
  310. > 	if(!st || (i < 0) || (i >= st->num)) return NULL;
  311.   	return st->data[i];
  312.   }

crypto/stack/stack.c:312:1: return from a call to sk_value
  310.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
  311.   	return st->data[i];
  312. > }
  313.   
  314.   void *sk_set(_STACK *st, int i, void *value)

crypto/x509/x509_vfy.c:572:7: Taking true branch
570.   		x = sk_X509_value(ctx->chain, i);
571.   		/* Ignore self issued certs unless last in chain */
572.   		if (i && (x->ex_flags & EXFLAG_SI))
             ^
573.   			continue;
574.   		/* Check against constraints for all certificates higher in

crypto/x509/x509_vfy.c:572:13: 
570.   		x = sk_X509_value(ctx->chain, i);
571.   		/* Ignore self issued certs unless last in chain */
572. > 		if (i && (x->ex_flags & EXFLAG_SI))
573.   			continue;
574.   		/* Check against constraints for all certificates higher in
