crypto/dh/dh_rfc7919.c:69: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 536870848] by call to `BN_rshift1`.
Showing all 15 steps of the trace


crypto/dh/dh_rfc7919.c:66:21: Call
64.           return NID_undef;
65.       if (dh->q != NULL) {
66.           BIGNUM *q = BN_dup(dh->p);
                          ^
67.   
68.           /* Check q = p * 2 + 1 we already know q is odd, so just shift right */

crypto/bn/bn_lib.c:272:10: Call
  270.       if (t == NULL)
  271.           return NULL;
  272.       if (!BN_copy(t, a)) {
                  ^
  273.           BN_free(t);
  274.           return NULL;

crypto/bn/bn_lib.c:280:1: Parameter `*a->d`
    278.   }
    279.   
    280. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
    281.   {
    282.       bn_check_top(b);

crypto/dh/dh_rfc7919.c:69:27: Call
67.   
68.           /* Check q = p * 2 + 1 we already know q is odd, so just shift right */
69.           if (q == NULL || !BN_rshift1(q, q) || !BN_cmp(dh->q, q))
                                ^
70.               nid = NID_undef;
71.           BN_free(q);

crypto/bn/bn_shift.c:46:1: Parameter `*r->d`
  44.   }
  45.   
  46. > int BN_rshift1(BIGNUM *r, const BIGNUM *a)
  47.   {
  48.       BN_ULONG *ap, *rp, t, c;

crypto/bn/bn_shift.c:62:13: Call
  60.       j = i - (ap[i - 1] == 1);
  61.       if (a != r) {
  62.           if (bn_wexpand(r, j) == NULL)
                    ^
  63.               return 0;
  64.           r->neg = a->neg;

crypto/bn/bn_lib.c:942:1: Parameter `*a->d`
    940.   }
    941.   
    942. > BIGNUM *bn_wexpand(BIGNUM *a, int words)
    943.   {
    944.       return (words <= a->dmax) ? a : bn_expand2(a, words);

crypto/bn/bn_lib.c:944:37: Call
    942.   BIGNUM *bn_wexpand(BIGNUM *a, int words)
    943.   {
    944.       return (words <= a->dmax) ? a : bn_expand2(a, words);
                                               ^
    945.   }
    946.   

crypto/bn/bn_lib.c:244:1: Parameter `*b->d`
      242.    */
      243.   
      244. > BIGNUM *bn_expand2(BIGNUM *b, int words)
      245.   {
      246.       if (words > b->dmax) {

crypto/bn/bn_lib.c:247:23: Call
      245.   {
      246.       if (words > b->dmax) {
      247.           BN_ULONG *a = bn_expand_internal(b, words);
                                   ^
      248.           if (!a)
      249.               return NULL;

crypto/bn/bn_lib.c:208:1: <Offset trace>
206.   /* This is used by bn_expand2() */
207.   /* The caller MUST check that words > b->dmax before calling this */
208. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
209.   {
210.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:208:1: Parameter `b->top`
        206.   /* This is used by bn_expand2() */
        207.   /* The caller MUST check that words > b->dmax before calling this */
        208. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
        209.   {
        210.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:208:1: <Length trace>
206.   /* This is used by bn_expand2() */
207.   /* The caller MUST check that words > b->dmax before calling this */
208. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
209.   {
210.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:208:1: Parameter `*b->d`
        206.   /* This is used by bn_expand2() */
        207.   /* The caller MUST check that words > b->dmax before calling this */
        208. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
        209.   {
        210.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:231:9: Array access: Offset added: [8, +oo] Size: [0, 536870848] by call to `BN_rshift1` 
        229.       assert(b->top <= words);
        230.       if (b->top > 0)
        231.           memcpy(a, b->d, sizeof(*a) * b->top);
                       ^
        232.   
        233.       return a;
