crypto/bn/bn_prime.c:531: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, +oo] by call to `BN_div`.
Showing all 27 steps of the trace


crypto/bn/bn_prime.c:518:10: Call
516.       bits--;
517.       BN_CTX_start(ctx);
518.       t1 = BN_CTX_get(ctx);
                ^
519.       q = BN_CTX_get(ctx);
520.       qadd = BN_CTX_get(ctx);

crypto/bn/bn_ctx.c:240:5: Call
  238.       }
  239.       /* OK, make sure the returned bignum is "zero" */
  240.       BN_zero(ret);
             ^
  241.       /* clear BN_FLG_CONSTTIME if leaked from previous frames */
  242.       ret->flags &= (~BN_FLG_CONSTTIME);

crypto/bn/bn_lib.c:361:1: Parameter `*a->d`
    359.   }
    360.   
    361. > int BN_set_word(BIGNUM *a, BN_ULONG w)
    362.   {
    363.       bn_check_top(a);

crypto/bn/bn_lib.c:364:9: Call
    362.   {
    363.       bn_check_top(a);
    364.       if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)
                   ^
    365.           return 0;
    366.       a->neg = 0;

crypto/bn/bn_lcl.h:660:1: Parameter `*a->d`
      658.                            const BIGNUM *add, const BIGNUM *rem, BN_CTX *ctx);
      659.   
      660. > static ossl_inline BIGNUM *bn_expand(BIGNUM *a, int bits)
      661.   {
      662.       if (bits > (INT_MAX - BN_BITS2 + 1))

crypto/bn/bn_prime.c:527:10: Call
525.           goto err;
526.   
527.       if (!BN_rand(q, bits, BN_RAND_TOP_ONE, BN_RAND_BOTTOM_ODD))
                ^
528.           goto err;
529.   

crypto/bn/bn_rand.c:106:1: Parameter `*rnd->d`
  104.       return bnrand(NORMAL, rnd, bits, top, bottom, ctx);
  105.   }
  106. > int BN_rand(BIGNUM *rnd, int bits, int top, int bottom)
  107.   {
  108.       return bnrand(NORMAL, rnd, bits, top, bottom, NULL);

crypto/bn/bn_rand.c:108:12: Call
  106.   int BN_rand(BIGNUM *rnd, int bits, int top, int bottom)
  107.   {
  108.       return bnrand(NORMAL, rnd, bits, top, bottom, NULL);
                    ^
  109.   }
  110.   

crypto/bn/bn_rand.c:23:1: Parameter `*rnd->d`
    21.   } BNRAND_FLAG;
    22.   
    23. > static int bnrand(BNRAND_FLAG flag, BIGNUM *rnd, int bits, int top, int bottom,
    24.                     BN_CTX *ctx)
    25.   {

crypto/bn/bn_rand.c:89:10: Call
    87.       if (bottom)                 /* set bottom bit if requested */
    88.           buf[bytes - 1] |= 1;
    89.       if (!BN_bin2bn(buf, bytes, rnd))
                   ^
    90.           goto err;
    91.       ret = 1;

crypto/bn/bn_lib.c:374:1: Parameter `*ret->d`
      372.   }
      373.   
      374. > BIGNUM *BN_bin2bn(const unsigned char *s, int len, BIGNUM *ret)
      375.   {
      376.       unsigned int i, m;

crypto/bn/bn_lib.c:396:9: Call
      394.       i = ((n - 1) / BN_BYTES) + 1;
      395.       m = ((n - 1) % (BN_BYTES));
      396.       if (bn_wexpand(ret, (int)i) == NULL) {
                     ^
      397.           BN_free(bn);
      398.           return NULL;

crypto/bn/bn_lib.c:962:1: Parameter `*a->d`
        960.   }
        961.   
        962. > BIGNUM *bn_wexpand(BIGNUM *a, int words)
        963.   {
        964.       return (words <= a->dmax) ? a : bn_expand2(a, words);

crypto/bn/bn_prime.c:531:10: Call
529.   
530.       /* we need ((rnd-rem) % add) == 0 */
531.       if (!BN_mod(t1, q, qadd, ctx))
                ^
532.           goto err;
533.       if (!BN_sub(q, q, t1))

crypto/bn/bn_div.c:209:1: Parameter `*dv->d`
  207.    * If 'dv' or 'rm' is NULL, the respective value is not returned.
  208.    */
  209. > int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,
  210.              BN_CTX *ctx)
  211.   {

crypto/bn/bn_div.c:229:11: Call
  227.       }
  228.   
  229.       ret = bn_div_fixed_top(dv, rm, num, divisor, ctx);
                   ^
  230.   
  231.       if (ret) {

crypto/bn/bn_div.c:264:1: Parameter `*dv->d`
    262.    *       divisor's length is considered public;
    263.    */
    264. > int bn_div_fixed_top(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num,
    265.                        const BIGNUM *divisor, BN_CTX *ctx)
    266.   {

crypto/bn/bn_div.c:327:10: Call
    325.   
    326.       /* Setup quotient */
    327.       if (!bn_wexpand(res, loop))
                    ^
    328.           goto err;
    329.       res->neg = (num->neg ^ divisor->neg);

crypto/bn/bn_lib.c:962:1: Parameter `*a->d`
      960.   }
      961.   
      962. > BIGNUM *bn_wexpand(BIGNUM *a, int words)
      963.   {
      964.       return (words <= a->dmax) ? a : bn_expand2(a, words);

crypto/bn/bn_lib.c:964:37: Call
      962.   BIGNUM *bn_wexpand(BIGNUM *a, int words)
      963.   {
      964.       return (words <= a->dmax) ? a : bn_expand2(a, words);
                                                 ^
      965.   }
      966.   

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, +oo] by call to `BN_div` 
          230.       assert(b->top <= words);
          231.       if (b->top > 0)
          232.           memcpy(a, b->d, sizeof(*a) * b->top);
                         ^
          233.   
          234.       return a;
