crypto/bn/bn_sqrt.c:137: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 67108856] by call to `BN_rshift`.
Showing all 24 steps of the trace


crypto/bn/bn_sqrt.c:75:10: Call
73.   
74.       /* A = a mod p */
75.       if (!BN_nnmod(A, a, p, ctx))
               ^
76.           goto end;
77.   

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:137:1: Parameter `rm->top`
    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_sqrt.c:137:14: Call
135.   
136.           /* b := (2*a)^((|p|-5)/8) */
137.           if (!BN_rshift(q, p, 3))
                    ^
138.               goto end;
139.           q->neg = 0;

crypto/bn/bn_shift.c:122:1: Parameter `r->top`
  120.   }
  121.   
  122. > int BN_rshift(BIGNUM *r, const BIGNUM *a, int n)
  123.   {
  124.       int i, j, nw, lb, rb;

crypto/bn/bn_shift.c:140:9: Call
  138.       lb = BN_BITS2 - rb;
  139.       if (nw >= a->top || a->top == 0) {
  140.           BN_zero(r);
                 ^
  141.           return 1;
  142.       }

crypto/bn/bn_lib.c:357:1: Parameter `a->top`
    355.   }
    356.   
    357. > int BN_set_word(BIGNUM *a, BN_ULONG w)
    358.   {
    359.       bn_check_top(a);

crypto/bn/bn_lib.c:360:9: Call
    358.   {
    359.       bn_check_top(a);
    360.       if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)
                   ^
    361.           return 0;
    362.       a->neg = 0;

crypto/bn/bn_lcl.h:651:1: Parameter `a->top`
      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))

crypto/bn/bn_lcl.h:659:12: Call
      657.           return a;
      658.   
      659.       return bn_expand2((a),(bits+BN_BITS2-1)/BN_BITS2);
                        ^
      660.   }
      661.   

crypto/bn/bn_lib.c:246:1: Parameter `b->top`
        244.    */
        245.   
        246. > BIGNUM *bn_expand2(BIGNUM *b, int words)
        247.   {
        248.       bn_check_top(b);

crypto/bn/bn_lib.c:251:23: Call
        249.   
        250.       if (words > b->dmax) {
        251.           BN_ULONG *a = bn_expand_internal(b, words);
                                     ^
        252.           if (!a)
        253.               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 `words`
          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:225:13: Call
          223.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
          224.       else
          225.           a = OPENSSL_zalloc(words * sizeof(*a));
                             ^
          226.       if (a == NULL) {
          227.           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:225:9: Assignment
          223.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
          224.       else
          225.           a = OPENSSL_zalloc(words * sizeof(*a));
                         ^
          226.       if (a == NULL) {
          227.           BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);

crypto/bn/bn_lib.c:233:9: Array access: Offset added: [8, +oo] Size: [0, 67108856] by call to `BN_rshift` 
          231.       assert(b->top <= words);
          232.       if (b->top > 0)
          233.           memcpy(a, b->d, sizeof(*a) * b->top);
                         ^
          234.   
          235.       return a;
