crypto/x509/x509_vfy.c:707: error: NULL_DEREFERENCE
  pointer `x` last assigned on line 705 could be null and is dereferenced at line 707, column 13.
Showing all 66 steps of the trace


crypto/x509/x509_vfy.c:698:1: start of procedure check_name_constraints()
696.   }
697.   
698. > static int check_name_constraints(X509_STORE_CTX *ctx)
699.   	{
700.   	X509 *x;

crypto/x509/x509_vfy.c:703:11: Condition is true
701.   	int i, j, rv;
702.   	/* Check name constraints for all certificates */
703.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
                 ^
704.   		{
705.   		x = sk_X509_value(ctx->chain, i);

crypto/x509/x509_vfy.c:703:7: 
701.   	int i, j, rv;
702.   	/* Check name constraints for all certificates */
703. > 	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
704.   		{
705.   		x = sk_X509_value(ctx->chain, i);

crypto/stack/stack.c:294:1: start of procedure sk_num()
  292.   	}
  293.   
  294. > int sk_num(const _STACK *st)
  295.   {
  296.   	if(st == NULL) return -1;

crypto/stack/stack.c:296:5: Taking false branch
  294.   int sk_num(const _STACK *st)
  295.   {
  296.   	if(st == NULL) return -1;
             ^
  297.   	return st->num;
  298.   }

crypto/stack/stack.c:297:2: 
  295.   {
  296.   	if(st == NULL) return -1;
  297. > 	return st->num;
  298.   }
  299.   

crypto/stack/stack.c:298:1: return from a call to sk_num
  296.   	if(st == NULL) return -1;
  297.   	return st->num;
  298. > }
  299.   
  300.   void *sk_value(const _STACK *st, int i)

crypto/x509/x509_vfy.c:703:40: Loop condition is true. Entering loop body
701.   	int i, j, rv;
702.   	/* Check name constraints for all certificates */
703.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
                                              ^
704.   		{
705.   		x = sk_X509_value(ctx->chain, i);

crypto/x509/x509_vfy.c:705:7: Condition is true
703.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
704.   		{
705.   		x = sk_X509_value(ctx->chain, i);
             ^
706.   		/* Ignore self issued certs unless last in chain */
707.   		if (i && (x->ex_flags & EXFLAG_SI))

crypto/x509/x509_vfy.c:705:3: 
703.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
704.   		{
705. > 		x = sk_X509_value(ctx->chain, i);
706.   		/* Ignore self issued certs unless last in chain */
707.   		if (i && (x->ex_flags & EXFLAG_SI))

crypto/stack/stack.c:300:1: start of procedure sk_value()
  298.   }
  299.   
  300. > void *sk_value(const _STACK *st, int i)
  301.   {
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;

crypto/stack/stack.c:302:6: Taking false branch
  300.   void *sk_value(const _STACK *st, int i)
  301.   {
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
              ^
  303.   	return st->data[i];
  304.   }

crypto/stack/stack.c:302:13: Taking false branch
  300.   void *sk_value(const _STACK *st, int i)
  301.   {
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
                     ^
  303.   	return st->data[i];
  304.   }

crypto/stack/stack.c:302:24: Taking false branch
  300.   void *sk_value(const _STACK *st, int i)
  301.   {
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
                                ^
  303.   	return st->data[i];
  304.   }

crypto/stack/stack.c:303:2: 
  301.   {
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
  303. > 	return st->data[i];
  304.   }
  305.   

crypto/stack/stack.c:304:1: return from a call to sk_value
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
  303.   	return st->data[i];
  304. > }
  305.   
  306.   void *sk_set(_STACK *st, int i, void *value)

crypto/x509/x509_vfy.c:707:7: Taking true branch
705.   		x = sk_X509_value(ctx->chain, i);
706.   		/* Ignore self issued certs unless last in chain */
707.   		if (i && (x->ex_flags & EXFLAG_SI))
             ^
708.   			continue;
709.   		/* Check against constraints for all certificates higher in

crypto/x509/x509_vfy.c:707:13: Taking true branch
705.   		x = sk_X509_value(ctx->chain, i);
706.   		/* Ignore self issued certs unless last in chain */
707.   		if (i && (x->ex_flags & EXFLAG_SI))
                   ^
708.   			continue;
709.   		/* Check against constraints for all certificates higher in

crypto/x509/x509_vfy.c:703:48: 
701.   	int i, j, rv;
702.   	/* Check name constraints for all certificates */
703. > 	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
704.   		{
705.   		x = sk_X509_value(ctx->chain, i);

crypto/x509/x509_vfy.c:703:40: Loop condition is true. Entering loop body
701.   	int i, j, rv;
702.   	/* Check name constraints for all certificates */
703.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
                                              ^
704.   		{
705.   		x = sk_X509_value(ctx->chain, i);

crypto/x509/x509_vfy.c:705:7: Condition is true
703.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
704.   		{
705.   		x = sk_X509_value(ctx->chain, i);
             ^
706.   		/* Ignore self issued certs unless last in chain */
707.   		if (i && (x->ex_flags & EXFLAG_SI))

crypto/x509/x509_vfy.c:705:3: 
703.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
704.   		{
705. > 		x = sk_X509_value(ctx->chain, i);
706.   		/* Ignore self issued certs unless last in chain */
707.   		if (i && (x->ex_flags & EXFLAG_SI))

crypto/stack/stack.c:300:1: start of procedure sk_value()
  298.   }
  299.   
  300. > void *sk_value(const _STACK *st, int i)
  301.   {
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;

crypto/stack/stack.c:302:6: Taking false branch
  300.   void *sk_value(const _STACK *st, int i)
  301.   {
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
              ^
  303.   	return st->data[i];
  304.   }

crypto/stack/stack.c:302:13: Taking false branch
  300.   void *sk_value(const _STACK *st, int i)
  301.   {
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
                     ^
  303.   	return st->data[i];
  304.   }

crypto/stack/stack.c:302:24: Taking false branch
  300.   void *sk_value(const _STACK *st, int i)
  301.   {
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
                                ^
  303.   	return st->data[i];
  304.   }

crypto/stack/stack.c:303:2: 
  301.   {
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
  303. > 	return st->data[i];
  304.   }
  305.   

crypto/stack/stack.c:304:1: return from a call to sk_value
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
  303.   	return st->data[i];
  304. > }
  305.   
  306.   void *sk_set(_STACK *st, int i, void *value)

crypto/x509/x509_vfy.c:707:7: Taking true branch
705.   		x = sk_X509_value(ctx->chain, i);
706.   		/* Ignore self issued certs unless last in chain */
707.   		if (i && (x->ex_flags & EXFLAG_SI))
             ^
708.   			continue;
709.   		/* Check against constraints for all certificates higher in

crypto/x509/x509_vfy.c:707:13: Taking false branch
705.   		x = sk_X509_value(ctx->chain, i);
706.   		/* Ignore self issued certs unless last in chain */
707.   		if (i && (x->ex_flags & EXFLAG_SI))
                   ^
708.   			continue;
709.   		/* Check against constraints for all certificates higher in

crypto/x509/x509_vfy.c:714:12: Condition is true
712.   		 * assumed it expects them to be obeyed.
713.   		 */
714.   		for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
                  ^
715.   			{
716.   			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;

crypto/x509/x509_vfy.c:714:8: 
712.   		 * assumed it expects them to be obeyed.
713.   		 */
714. > 		for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
715.   			{
716.   			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;

crypto/stack/stack.c:294:1: start of procedure sk_num()
  292.   	}
  293.   
  294. > int sk_num(const _STACK *st)
  295.   {
  296.   	if(st == NULL) return -1;

crypto/stack/stack.c:296:5: Taking false branch
  294.   int sk_num(const _STACK *st)
  295.   {
  296.   	if(st == NULL) return -1;
             ^
  297.   	return st->num;
  298.   }

crypto/stack/stack.c:297:2: 
  295.   {
  296.   	if(st == NULL) return -1;
  297. > 	return st->num;
  298.   }
  299.   

crypto/stack/stack.c:298:1: return from a call to sk_num
  296.   	if(st == NULL) return -1;
  297.   	return st->num;
  298. > }
  299.   
  300.   void *sk_value(const _STACK *st, int i)

crypto/x509/x509_vfy.c:714:41: Loop condition is true. Entering loop body
712.   		 * assumed it expects them to be obeyed.
713.   		 */
714.   		for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
                                               ^
715.   			{
716.   			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;

crypto/x509/x509_vfy.c:716:27: Condition is true
714.   		for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
715.   			{
716.   			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;
                                 ^
717.   			if (nc)
718.   				{

crypto/x509/x509_vfy.c:716:4: 
714.   		for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
715.   			{
716. > 			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;
717.   			if (nc)
718.   				{

crypto/stack/stack.c:300:1: start of procedure sk_value()
  298.   }
  299.   
  300. > void *sk_value(const _STACK *st, int i)
  301.   {
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;

crypto/stack/stack.c:302:6: Taking false branch
  300.   void *sk_value(const _STACK *st, int i)
  301.   {
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
              ^
  303.   	return st->data[i];
  304.   }

crypto/stack/stack.c:302:13: Taking false branch
  300.   void *sk_value(const _STACK *st, int i)
  301.   {
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
                     ^
  303.   	return st->data[i];
  304.   }

crypto/stack/stack.c:302:24: Taking false branch
  300.   void *sk_value(const _STACK *st, int i)
  301.   {
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
                                ^
  303.   	return st->data[i];
  304.   }

crypto/stack/stack.c:303:2: 
  301.   {
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
  303. > 	return st->data[i];
  304.   }
  305.   

crypto/stack/stack.c:304:1: return from a call to sk_value
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
  303.   	return st->data[i];
  304. > }
  305.   
  306.   void *sk_set(_STACK *st, int i, void *value)

crypto/x509/x509_vfy.c:717:8: Taking true branch
715.   			{
716.   			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;
717.   			if (nc)
              ^
718.   				{
719.   				rv = NAME_CONSTRAINTS_check(x, nc);

crypto/x509/x509_vfy.c:719:5: Skipping NAME_CONSTRAINTS_check(): empty list of specs
717.   			if (nc)
718.   				{
719.   				rv = NAME_CONSTRAINTS_check(x, nc);
           ^
720.   				if (rv != X509_V_OK)
721.   					{

crypto/x509/x509_vfy.c:720:9: Taking true branch
718.   				{
719.   				rv = NAME_CONSTRAINTS_check(x, nc);
720.   				if (rv != X509_V_OK)
               ^
721.   					{
722.   					ctx->error = rv;

crypto/x509/x509_vfy.c:722:6: 
720.   				if (rv != X509_V_OK)
721.   					{
722. > 					ctx->error = rv;
723.   					ctx->error_depth = i;
724.   					ctx->current_cert = x;

crypto/x509/x509_vfy.c:723:6: 
721.   					{
722.   					ctx->error = rv;
723. > 					ctx->error_depth = i;
724.   					ctx->current_cert = x;
725.   					if (!ctx->verify_cb(0,ctx))

crypto/x509/x509_vfy.c:724:6: 
722.   					ctx->error = rv;
723.   					ctx->error_depth = i;
724. > 					ctx->current_cert = x;
725.   					if (!ctx->verify_cb(0,ctx))
726.   						return 0;

crypto/x509/x509_vfy.c:725:11: Taking false branch
723.   					ctx->error_depth = i;
724.   					ctx->current_cert = x;
725.   					if (!ctx->verify_cb(0,ctx))
                 ^
726.   						return 0;
727.   					}

crypto/x509/x509_vfy.c:714:48: 
712.   		 * assumed it expects them to be obeyed.
713.   		 */
714. > 		for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
715.   			{
716.   			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;

crypto/x509/x509_vfy.c:714:41: Loop condition is false. Leaving loop
712.   		 * assumed it expects them to be obeyed.
713.   		 */
714.   		for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
                                               ^
715.   			{
716.   			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;

crypto/x509/x509_vfy.c:703:48: 
701.   	int i, j, rv;
702.   	/* Check name constraints for all certificates */
703. > 	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
704.   		{
705.   		x = sk_X509_value(ctx->chain, i);

crypto/x509/x509_vfy.c:703:40: Loop condition is true. Entering loop body
701.   	int i, j, rv;
702.   	/* Check name constraints for all certificates */
703.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
                                              ^
704.   		{
705.   		x = sk_X509_value(ctx->chain, i);

crypto/x509/x509_vfy.c:705:7: Condition is true
703.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
704.   		{
705.   		x = sk_X509_value(ctx->chain, i);
             ^
706.   		/* Ignore self issued certs unless last in chain */
707.   		if (i && (x->ex_flags & EXFLAG_SI))

crypto/x509/x509_vfy.c:705:3: 
703.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
704.   		{
705. > 		x = sk_X509_value(ctx->chain, i);
706.   		/* Ignore self issued certs unless last in chain */
707.   		if (i && (x->ex_flags & EXFLAG_SI))

crypto/stack/stack.c:300:1: start of procedure sk_value()
  298.   }
  299.   
  300. > void *sk_value(const _STACK *st, int i)
  301.   {
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;

crypto/stack/stack.c:302:6: Taking false branch
  300.   void *sk_value(const _STACK *st, int i)
  301.   {
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
              ^
  303.   	return st->data[i];
  304.   }

crypto/stack/stack.c:302:13: Taking false branch
  300.   void *sk_value(const _STACK *st, int i)
  301.   {
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
                     ^
  303.   	return st->data[i];
  304.   }

crypto/stack/stack.c:302:24: Taking true branch
  300.   void *sk_value(const _STACK *st, int i)
  301.   {
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
                                ^
  303.   	return st->data[i];
  304.   }

crypto/stack/stack.c:302:39: 
  300.   void *sk_value(const _STACK *st, int i)
  301.   {
  302. > 	if(!st || (i < 0) || (i >= st->num)) return NULL;
  303.   	return st->data[i];
  304.   }

crypto/stack/stack.c:304:1: return from a call to sk_value
  302.   	if(!st || (i < 0) || (i >= st->num)) return NULL;
  303.   	return st->data[i];
  304. > }
  305.   
  306.   void *sk_set(_STACK *st, int i, void *value)

crypto/x509/x509_vfy.c:707:7: Taking true branch
705.   		x = sk_X509_value(ctx->chain, i);
706.   		/* Ignore self issued certs unless last in chain */
707.   		if (i && (x->ex_flags & EXFLAG_SI))
             ^
708.   			continue;
709.   		/* Check against constraints for all certificates higher in

crypto/x509/x509_vfy.c:707:13: 
705.   		x = sk_X509_value(ctx->chain, i);
706.   		/* Ignore self issued certs unless last in chain */
707. > 		if (i && (x->ex_flags & EXFLAG_SI))
708.   			continue;
709.   		/* Check against constraints for all certificates higher in

static int check_name_constraints(X509_STORE_CTX *ctx)
	{
	X509 *x;
	int i, j, rv;
	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
		{
		x = sk_X509_value(ctx->chain, i);
		if (i && (x->ex_flags & EXFLAG_SI))
			continue;
		for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
			{
			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;
			if (nc)
				{
				rv = NAME_CONSTRAINTS_check(x, nc);
				if (rv != X509_V_OK)
					{
					ctx->error = rv;
					ctx->error_depth = i;
					ctx->current_cert = x;
					if (!ctx->verify_cb(0,ctx))
						return 0;
					}
				}
			}
		}
	return 1;
	}
['static int check_name_constraints(X509_STORE_CTX *ctx)\n\t{\n\tX509 *x;\n\tint i, j, rv;\n\tfor (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)\n\t\t{\n\t\tx = sk_X509_value(ctx->chain, i);\n\t\tif (i && (x->ex_flags & EXFLAG_SI))\n\t\t\tcontinue;\n\t\tfor (j = sk_X509_num(ctx->chain) - 1; j > i; j--)\n\t\t\t{\n\t\t\tNAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;\n\t\t\tif (nc)\n\t\t\t\t{\n\t\t\t\trv = NAME_CONSTRAINTS_check(x, nc);\n\t\t\t\tif (rv != X509_V_OK)\n\t\t\t\t\t{\n\t\t\t\t\tctx->error = rv;\n\t\t\t\t\tctx->error_depth = i;\n\t\t\t\t\tctx->current_cert = x;\n\t\t\t\t\tif (!ctx->verify_cb(0,ctx))\n\t\t\t\t\t\treturn 0;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\treturn 1;\n\t}', 'int sk_num(const _STACK *st)\n{\n\tif(st == NULL) return -1;\n\treturn st->num;\n}', 'void *sk_value(const _STACK *st, int i)\n{\n\tif(!st || (i < 0) || (i >= st->num)) return NULL;\n\treturn st->data[i];\n}']