test/bntest.c:1848: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, +oo] by call to `BN_div`.
Showing all 16 steps of the trace


test/bntest.c:1846:5: Call
1844.               || !TEST_ptr(mont = BN_MONT_CTX_new()))
1845.           goto err;
1846.       BN_zero(zero);
            ^
1847.   
1848.       if (!TEST_false(BN_div(a, b, BN_value_one(), zero, ctx)))

crypto/bn/bn_lib.c:387:1: Parameter `*a->d`
  385.   }
  386.   
  387. > int BN_set_word(BIGNUM *a, BN_ULONG w)
  388.   {
  389.       bn_check_top(a);

crypto/bn/bn_lib.c:390:9: Call
  388.   {
  389.       bn_check_top(a);
  390.       if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)
                 ^
  391.           return 0;
  392.       a->neg = 0;

crypto/bn/bn_lcl.h:651:1: Parameter `*a->d`
    649.                            const BIGNUM *add, const BIGNUM *rem, BN_CTX *ctx);
    650.   
    651. > static ossl_inline BIGNUM *bn_expand(BIGNUM *a, int bits)
    652.   {
    653.       if (bits > (INT_MAX - BN_BITS2 + 1))

test/bntest.c:1848:10: Call
1846.       BN_zero(zero);
1847.   
1848.       if (!TEST_false(BN_div(a, b, BN_value_one(), zero, ctx)))
                 ^
1849.           goto err;
1850.       ERR_clear_error();

crypto/bn/bn_div.c:137:1: Parameter `*dv->d`
  135.    * If 'dv' or 'rm' is NULL, the respective value is not returned.
  136.    */
  137. > int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,
  138.              BN_CTX *ctx)
  139.   {

crypto/bn/bn_div.c:251:10: Call
  249.   
  250.       /* Setup to 'res' */
  251.       if (!bn_wexpand(res, (loop + 1)))
                  ^
  252.           goto err;
  253.       res->neg = (num->neg ^ divisor->neg);

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

crypto/bn/bn_lib.c:942:37: Call
    940.   BIGNUM *bn_wexpand(BIGNUM *a, int words)
    941.   {
    942.       return (words <= a->dmax) ? a : bn_expand2(a, words);
                                               ^
    943.   }
    944.   

crypto/bn/bn_lib.c:273:1: Parameter `*b->d`
      271.    */
      272.   
      273. > BIGNUM *bn_expand2(BIGNUM *b, int words)
      274.   {
      275.       bn_check_top(b);

crypto/bn/bn_lib.c:278:23: Call
      276.   
      277.       if (words > b->dmax) {
      278.           BN_ULONG *a = bn_expand_internal(b, words);
                                   ^
      279.           if (!a)
      280.               return NULL;

crypto/bn/bn_lib.c:235:1: <Offset trace>
233.   /* This is used by bn_expand2() */
234.   /* The caller MUST check that words > b->dmax before calling this */
235. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
236.   {
237.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:235:1: Parameter `b->top`
        233.   /* This is used by bn_expand2() */
        234.   /* The caller MUST check that words > b->dmax before calling this */
        235. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
        236.   {
        237.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:235:1: <Length trace>
233.   /* This is used by bn_expand2() */
234.   /* The caller MUST check that words > b->dmax before calling this */
235. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
236.   {
237.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:235:1: Parameter `*b->d`
        233.   /* This is used by bn_expand2() */
        234.   /* The caller MUST check that words > b->dmax before calling this */
        235. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
        236.   {
        237.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:260:9: Array access: Offset added: [8, +oo] Size: [0, +oo] by call to `BN_div` 
        258.       assert(b->top <= words);
        259.       if (b->top > 0)
        260.           memcpy(a, b->d, sizeof(*a) * b->top);
                       ^
        261.   
        262.       return a;
