crypto/bn/bn_mul.c:581: 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:525:19: Call
523.       BN_CTX_start(ctx);
524.       if ((r == a) || (r == b)) {
525.           if ((rr = BN_CTX_get(ctx)) == NULL)
                         ^
526.               goto err;
527.       } else

crypto/bn/bn_ctx.c:229:5: Call
  227.       }
  228.       /* OK, make sure the returned bignum is "zero" */
  229.       BN_zero(ret);
             ^
  230.       ctx->used++;
  231.       CTXDBG_RET(ctx, ret);

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

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

crypto/bn/bn_mul.c:581:21: Call
579.               } else {            /* al <= j || bl <= j */
580.   
581.                   if (bn_wexpand(t, k * 2) == NULL)
                           ^
582.                       goto err;
583.                   if (bn_wexpand(rr, k * 2) == NULL)

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_wexpand` 
      229.       assert(b->top <= words);
      230.       if (b->top > 0)
      231.           memcpy(a, b->d, sizeof(*a) * b->top);
                     ^
      232.   
      233.       return a;
