crypto/x509/x509_vfy.c:579: error: NULL_DEREFERENCE
  pointer `x` last assigned on line 577 could be null and is dereferenced at line 579, column 13.
Showing all 66 steps of the trace


crypto/x509/x509_vfy.c:570:1: start of procedure check_name_constraints()
568.   }
569.   
570. > static int check_name_constraints(X509_STORE_CTX *ctx)
571.   	{
572.   	X509 *x;

crypto/x509/x509_vfy.c:575:11: Condition is true
573.   	int i, j, rv;
574.   	/* Check name constraints for all certificates */
575.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
                 ^
576.   		{
577.   		x = sk_X509_value(ctx->chain, i);

crypto/x509/x509_vfy.c:575:7: 
573.   	int i, j, rv;
574.   	/* Check name constraints for all certificates */
575. > 	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
576.   		{
577.   		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:575:40: Loop condition is true. Entering loop body
573.   	int i, j, rv;
574.   	/* Check name constraints for all certificates */
575.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
                                              ^
576.   		{
577.   		x = sk_X509_value(ctx->chain, i);

crypto/x509/x509_vfy.c:577:7: Condition is true
575.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
576.   		{
577.   		x = sk_X509_value(ctx->chain, i);
             ^
578.   		/* Ignore self issued certs unless last in chain */
579.   		if (i && (x->ex_flags & EXFLAG_SI))

crypto/x509/x509_vfy.c:577:3: 
575.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
576.   		{
577. > 		x = sk_X509_value(ctx->chain, i);
578.   		/* Ignore self issued certs unless last in chain */
579.   		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:579:7: Taking true branch
577.   		x = sk_X509_value(ctx->chain, i);
578.   		/* Ignore self issued certs unless last in chain */
579.   		if (i && (x->ex_flags & EXFLAG_SI))
             ^
580.   			continue;
581.   		/* Check against constraints for all certificates higher in

crypto/x509/x509_vfy.c:579:13: Taking true branch
577.   		x = sk_X509_value(ctx->chain, i);
578.   		/* Ignore self issued certs unless last in chain */
579.   		if (i && (x->ex_flags & EXFLAG_SI))
                   ^
580.   			continue;
581.   		/* Check against constraints for all certificates higher in

crypto/x509/x509_vfy.c:575:48: 
573.   	int i, j, rv;
574.   	/* Check name constraints for all certificates */
575. > 	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
576.   		{
577.   		x = sk_X509_value(ctx->chain, i);

crypto/x509/x509_vfy.c:575:40: Loop condition is true. Entering loop body
573.   	int i, j, rv;
574.   	/* Check name constraints for all certificates */
575.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
                                              ^
576.   		{
577.   		x = sk_X509_value(ctx->chain, i);

crypto/x509/x509_vfy.c:577:7: Condition is true
575.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
576.   		{
577.   		x = sk_X509_value(ctx->chain, i);
             ^
578.   		/* Ignore self issued certs unless last in chain */
579.   		if (i && (x->ex_flags & EXFLAG_SI))

crypto/x509/x509_vfy.c:577:3: 
575.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
576.   		{
577. > 		x = sk_X509_value(ctx->chain, i);
578.   		/* Ignore self issued certs unless last in chain */
579.   		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:579:7: Taking true branch
577.   		x = sk_X509_value(ctx->chain, i);
578.   		/* Ignore self issued certs unless last in chain */
579.   		if (i && (x->ex_flags & EXFLAG_SI))
             ^
580.   			continue;
581.   		/* Check against constraints for all certificates higher in

crypto/x509/x509_vfy.c:579:13: Taking false branch
577.   		x = sk_X509_value(ctx->chain, i);
578.   		/* Ignore self issued certs unless last in chain */
579.   		if (i && (x->ex_flags & EXFLAG_SI))
                   ^
580.   			continue;
581.   		/* Check against constraints for all certificates higher in

crypto/x509/x509_vfy.c:586:12: Condition is true
584.   		 * assumed it expects them to be obeyed.
585.   		 */
586.   		for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
                  ^
587.   			{
588.   			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;

crypto/x509/x509_vfy.c:586:8: 
584.   		 * assumed it expects them to be obeyed.
585.   		 */
586. > 		for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
587.   			{
588.   			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:586:41: Loop condition is true. Entering loop body
584.   		 * assumed it expects them to be obeyed.
585.   		 */
586.   		for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
                                               ^
587.   			{
588.   			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;

crypto/x509/x509_vfy.c:588:27: Condition is true
586.   		for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
587.   			{
588.   			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;
                                 ^
589.   			if (nc)
590.   				{

crypto/x509/x509_vfy.c:588:4: 
586.   		for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
587.   			{
588. > 			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;
589.   			if (nc)
590.   				{

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:589:8: Taking true branch
587.   			{
588.   			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;
589.   			if (nc)
              ^
590.   				{
591.   				rv = NAME_CONSTRAINTS_check(x, nc);

crypto/x509/x509_vfy.c:591:5: Skipping NAME_CONSTRAINTS_check(): empty list of specs
589.   			if (nc)
590.   				{
591.   				rv = NAME_CONSTRAINTS_check(x, nc);
           ^
592.   				if (rv != X509_V_OK)
593.   					{

crypto/x509/x509_vfy.c:592:9: Taking true branch
590.   				{
591.   				rv = NAME_CONSTRAINTS_check(x, nc);
592.   				if (rv != X509_V_OK)
               ^
593.   					{
594.   					ctx->error = rv;

crypto/x509/x509_vfy.c:594:6: 
592.   				if (rv != X509_V_OK)
593.   					{
594. > 					ctx->error = rv;
595.   					ctx->error_depth = i;
596.   					ctx->current_cert = x;

crypto/x509/x509_vfy.c:595:6: 
593.   					{
594.   					ctx->error = rv;
595. > 					ctx->error_depth = i;
596.   					ctx->current_cert = x;
597.   					if (!ctx->verify_cb(0,ctx))

crypto/x509/x509_vfy.c:596:6: 
594.   					ctx->error = rv;
595.   					ctx->error_depth = i;
596. > 					ctx->current_cert = x;
597.   					if (!ctx->verify_cb(0,ctx))
598.   						return 0;

crypto/x509/x509_vfy.c:597:11: Taking false branch
595.   					ctx->error_depth = i;
596.   					ctx->current_cert = x;
597.   					if (!ctx->verify_cb(0,ctx))
                 ^
598.   						return 0;
599.   					}

crypto/x509/x509_vfy.c:586:48: 
584.   		 * assumed it expects them to be obeyed.
585.   		 */
586. > 		for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
587.   			{
588.   			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;

crypto/x509/x509_vfy.c:586:41: Loop condition is false. Leaving loop
584.   		 * assumed it expects them to be obeyed.
585.   		 */
586.   		for (j = sk_X509_num(ctx->chain) - 1; j > i; j--)
                                               ^
587.   			{
588.   			NAME_CONSTRAINTS *nc = sk_X509_value(ctx->chain, j)->nc;

crypto/x509/x509_vfy.c:575:48: 
573.   	int i, j, rv;
574.   	/* Check name constraints for all certificates */
575. > 	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
576.   		{
577.   		x = sk_X509_value(ctx->chain, i);

crypto/x509/x509_vfy.c:575:40: Loop condition is true. Entering loop body
573.   	int i, j, rv;
574.   	/* Check name constraints for all certificates */
575.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
                                              ^
576.   		{
577.   		x = sk_X509_value(ctx->chain, i);

crypto/x509/x509_vfy.c:577:7: Condition is true
575.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
576.   		{
577.   		x = sk_X509_value(ctx->chain, i);
             ^
578.   		/* Ignore self issued certs unless last in chain */
579.   		if (i && (x->ex_flags & EXFLAG_SI))

crypto/x509/x509_vfy.c:577:3: 
575.   	for (i = sk_X509_num(ctx->chain) - 1; i >= 0; i--)
576.   		{
577. > 		x = sk_X509_value(ctx->chain, i);
578.   		/* Ignore self issued certs unless last in chain */
579.   		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:579:7: Taking true branch
577.   		x = sk_X509_value(ctx->chain, i);
578.   		/* Ignore self issued certs unless last in chain */
579.   		if (i && (x->ex_flags & EXFLAG_SI))
             ^
580.   			continue;
581.   		/* Check against constraints for all certificates higher in

crypto/x509/x509_vfy.c:579:13: 
577.   		x = sk_X509_value(ctx->chain, i);
578.   		/* Ignore self issued certs unless last in chain */
579. > 		if (i && (x->ex_flags & EXFLAG_SI))
580.   			continue;
581.   		/* 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}']