crypto/bn/bn_exp.c:1217: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, +oo] by call to `BN_div`.
Showing all 26 steps of the trace


crypto/bn/bn_exp.c:1198:14: Call
1196.           if ((mont = BN_MONT_CTX_new()) == NULL)
1197.               goto err;
1198.           if (!BN_MONT_CTX_set(mont, m, ctx))
                     ^
1199.               goto err;
1200.       }

crypto/bn/bn_mont.c:272:15: Call
  270.   
  271.       BN_CTX_start(ctx);
  272.       if ((Ri = BN_CTX_get(ctx)) == NULL)
                       ^
  273.           goto err;
  274.       R = &(mont->RR);            /* grab RR as a temp */

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:359:1: Parameter `*a->d`
      357.   }
      358.   
      359. > int BN_set_word(BIGNUM *a, BN_ULONG w)
      360.   {
      361.       bn_check_top(a);

crypto/bn/bn_lib.c:362:9: Call
      360.   {
      361.       bn_check_top(a);
      362.       if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)
                     ^
      363.           return 0;
      364.       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_mont.c:351:19: Call
  349.           if (BN_is_one(&tmod))
  350.               BN_zero(Ri);
  351.           else if ((BN_mod_inverse(Ri, R, &tmod, ctx)) == NULL)
                           ^
  352.               goto err;
  353.           if (!BN_lshift(Ri, Ri, BN_BITS2))

crypto/bn/bn_gcd.c:124:1: Parameter `*in->d`
    122.                                           BN_CTX *ctx);
    123.   
    124. > BIGNUM *BN_mod_inverse(BIGNUM *in,
    125.                          const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx)
    126.   {

crypto/bn/bn_gcd.c:129:10: Call
    127.       BIGNUM *rv;
    128.       int noinv;
    129.       rv = int_bn_mod_inverse(in, a, n, ctx, &noinv);
                    ^
    130.       if (noinv)
    131.           BNerr(BN_F_BN_MOD_INVERSE, BN_R_NO_INVERSE);

crypto/bn/bn_gcd.c:187:14: Call
      185.       A->neg = 0;
      186.       if (B->neg || (BN_ucmp(B, A) >= 0)) {
      187.           if (!BN_nnmod(B, B, A, ctx))
                          ^
      188.               goto err;
      189.       }

crypto/bn/bn_mod.c:20:11: Call
        18.        */
        19.   
        20.       if (!(BN_mod(r, m, d, ctx)))
                        ^
        21.           return 0;
        22.       if (!r->neg)

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_exp.c:1217:22: Call
1215.                   r_is_one = 0;
1216.               } else {
1217.                   if (!BN_MOD_MUL_WORD(r, w, m))
                             ^
1218.                       goto err;
1219.               }

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: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, +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;
