crypto/bn/bn_mont.c:397: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 67108856] by call to `BN_div`.
Showing all 32 steps of the trace


crypto/bn/bn_mont.c:263:1: Parameter `mont->RR.top`
261.   }
262.   
263. > int BN_MONT_CTX_set(BN_MONT_CTX *mont, const BIGNUM *mod, BN_CTX *ctx)
264.   {
265.       int i, ret = 0;

crypto/bn/bn_mont.c:341:9: Call
339.           mont->n0[1] = (Ri->top > 1) ? Ri->d[1] : 0;
340.   # else
341.           BN_zero(R);
               ^
342.           if (!(BN_set_bit(R, BN_BITS2)))
343.               goto err;           /* R */

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_mont.c:342:15: Call
340.   # else
341.           BN_zero(R);
342.           if (!(BN_set_bit(R, BN_BITS2)))
                     ^
343.               goto err;           /* R */
344.   

crypto/bn/bn_lib.c:608:1: Parameter `a->top`
  606.   }
  607.   
  608. > int BN_set_bit(BIGNUM *a, int n)
  609.   {
  610.       int i, j, k;

crypto/bn/bn_mont.c:394:5: Call
392.   
393.       /* setup RR for conversions */
394.       BN_zero(&(mont->RR));
           ^
395.       if (!BN_set_bit(&(mont->RR), mont->ri * 2))
396.           goto err;

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_mont.c:395:10: Call
393.       /* setup RR for conversions */
394.       BN_zero(&(mont->RR));
395.       if (!BN_set_bit(&(mont->RR), mont->ri * 2))
                ^
396.           goto err;
397.       if (!BN_mod(&(mont->RR), &(mont->RR), &(mont->N), ctx))

crypto/bn/bn_lib.c:608:1: Parameter `a->top`
  606.   }
  607.   
  608. > int BN_set_bit(BIGNUM *a, int n)
  609.   {
  610.       int i, j, k;

crypto/bn/bn_mont.c:397:10: Call
395.       if (!BN_set_bit(&(mont->RR), mont->ri * 2))
396.           goto err;
397.       if (!BN_mod(&(mont->RR), &(mont->RR), &(mont->N), ctx))
                ^
398.           goto err;
399.   

crypto/bn/bn_div.c:188:1: Parameter `rm->top`
  186.    * If 'dv' or 'rm' is NULL, the respective value is not returned.
  187.    */
  188. > int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,
  189.              BN_CTX *ctx)
  190.   {

crypto/bn/bn_div.c:233:17: Call
  231.       if (!no_branch && BN_ucmp(num, divisor) < 0) {
  232.           if (rm != NULL) {
  233.               if (BN_copy(rm, num) == NULL)
                         ^
  234.                   return 0;
  235.           }

crypto/bn/bn_lib.c:281:1: Parameter `a->top`
    279.   }
    280.   
    281. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
    282.   {
    283.       bn_check_top(b);

crypto/bn/bn_lib.c:287:9: Call
    285.       if (a == b)
    286.           return a;
    287.       if (bn_wexpand(a, b->top) == NULL)
                   ^
    288.           return NULL;
    289.   

crypto/bn/bn_lib.c:939:1: Parameter `a->top`
      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->top`
        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 `words`
          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:224:13: Call
          222.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
          223.       else
          224.           a = OPENSSL_zalloc(words * sizeof(*a));
                             ^
          225.       if (a == NULL) {
          226.           BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);

crypto/mem.c:228:1: Parameter `num`
            226.   }
            227.   
            228. > void *CRYPTO_zalloc(size_t num, const char *file, int line)
            229.   {
            230.       void *ret = CRYPTO_malloc(num, file, line);

crypto/mem.c:230:17: Call
            228.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
            229.   {
            230.       void *ret = CRYPTO_malloc(num, file, line);
                                   ^
            231.   
            232.       FAILTEST();

crypto/mem.c:201:9: Assignment
              199.   
              200.       if (num == 0)
              201.           return NULL;
                             ^
              202.   
              203.       FAILTEST();

crypto/mem.c:230:5: Assignment
            228.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
            229.   {
            230.       void *ret = CRYPTO_malloc(num, file, line);
                       ^
            231.   
            232.       FAILTEST();

crypto/mem.c:235:5: Assignment
            233.       if (ret != NULL)
            234.           memset(ret, 0, num);
            235.       return ret;
                       ^
            236.   }
            237.   

crypto/bn/bn_lib.c:224:9: Assignment
          222.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
          223.       else
          224.           a = OPENSSL_zalloc(words * sizeof(*a));
                         ^
          225.       if (a == NULL) {
          226.           BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);

crypto/bn/bn_lib.c:232:9: Array access: Offset added: [8, +oo] Size: [0, 67108856] 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;
