crypto/bn/bn_mul.c:591: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 536870848] by call to `bn_wexpand`.
Showing all 14 steps of the trace


crypto/bn/bn_mul.c:535:19: Call
533.       BN_CTX_start(ctx);
534.       if ((r == a) || (r == b)) {
535.           if ((rr = BN_CTX_get(ctx)) == NULL)
                         ^
536.               goto err;
537.       } else

crypto/bn/bn_ctx.c:229:5: Call
  227.       }
  228.       /* OK, make sure the returned bignum is "zero" */
  229.       BN_zero(ret);
             ^
  230.       /* clear BN_FLG_CONSTTIME if leaked from previous frames */
  231.       ret->flags &= (~BN_FLG_CONSTTIME);

crypto/bn/bn_lib.c:366:15: Assignment
    364.       a->neg = 0;
    365.       a->d[0] = w;
    366.       a->top = (w ? 1 : 0);
                         ^
    367.       a->flags &= ~BN_FLG_FIXED_TOP;
    368.       bn_check_top(a);

crypto/bn/bn_lib.c:366:5: Assignment
    364.       a->neg = 0;
    365.       a->d[0] = w;
    366.       a->top = (w ? 1 : 0);
               ^
    367.       a->flags &= ~BN_FLG_FIXED_TOP;
    368.       bn_check_top(a);

crypto/bn/bn_mul.c:591:21: Call
589.               } else {            /* al <= j || bl <= j */
590.   
591.                   if (bn_wexpand(t, k * 2) == NULL)
                           ^
592.                       goto err;
593.                   if (bn_wexpand(rr, k * 2) == NULL)

crypto/bn/bn_lib.c:939:1: Parameter `*a->d`
  937.   }
  938.   
  939. > BIGNUM *bn_wexpand(BIGNUM *a, int words)
  940.   {
  941.       return (words <= a->dmax) ? a : bn_expand2(a, words);

crypto/bn/bn_lib.c:941:37: Call
  939.   BIGNUM *bn_wexpand(BIGNUM *a, int words)
  940.   {
  941.       return (words <= a->dmax) ? a : bn_expand2(a, words);
                                             ^
  942.   }
  943.   

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

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

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

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

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

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

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