crypto/bn/bn_mod.c:182: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 67108856] by call to `BN_lshift`.
Showing all 23 steps of the trace


crypto/bn/bn_mod.c:159:1: Parameter `r->top`
157.    * m
158.    */
159. > int BN_mod_lshift_quick(BIGNUM *r, const BIGNUM *a, int n, const BIGNUM *m)
160.   {
161.       if (r != a) {

crypto/bn/bn_mod.c:170:38: Call
168.   
169.           /* 0 < r < m */
170.           max_shift = BN_num_bits(m) - BN_num_bits(r);
                                            ^
171.           /* max_shift >= 0 */
172.   

crypto/bn/bn_lib.c:166:9: Call
  164.       bn_check_top(a);
  165.   
  166.       if (BN_is_zero(a))
                 ^
  167.           return 0;
  168.       return ((i * BN_BITS2) + BN_num_bits_word(a->d[i]));

crypto/bn/bn_lib.c:844:1: Parameter `a->top`
    842.   }
    843.   
    844. > int BN_is_zero(const BIGNUM *a)
    845.   {
    846.       return a->top == 0;

crypto/bn/bn_mod.c:182:18: Call
180.   
181.           if (max_shift) {
182.               if (!BN_lshift(r, r, max_shift))
                        ^
183.                   return 0;
184.               n -= max_shift;

crypto/bn/bn_shift.c:83:1: Parameter `r->top`
  81.   }
  82.   
  83. > int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
  84.   {
  85.       int i, nw, lb, rb;

crypto/bn/bn_shift.c:98:9: Call
  96.   
  97.       nw = n / BN_BITS2;
  98.       if (bn_wexpand(r, a->top + nw + 1) == NULL)
                 ^
  99.           return 0;
  100.       r->neg = a->neg;

crypto/bn/bn_lib.c:940:1: Parameter `a->top`
    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->top`
      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 `words`
        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:252:13: Call
        250.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
        251.       else
        252.           a = OPENSSL_zalloc(words * sizeof(*a));
                           ^
        253.       if (a == NULL) {
        254.           BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);

crypto/mem.c:218:1: Parameter `num`
          216.   }
          217.   
          218. > void *CRYPTO_zalloc(size_t num, const char *file, int line)
          219.   {
          220.       void *ret = CRYPTO_malloc(num, file, line);

crypto/mem.c:220:17: Call
          218.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
          219.   {
          220.       void *ret = CRYPTO_malloc(num, file, line);
                                 ^
          221.   
          222.       FAILTEST();

crypto/mem.c:198:9: Assignment
            196.   
            197.       if (num == 0)
            198.           return NULL;
                           ^
            199.   
            200.       FAILTEST();

crypto/mem.c:220:5: Assignment
          218.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
          219.   {
          220.       void *ret = CRYPTO_malloc(num, file, line);
                     ^
          221.   
          222.       FAILTEST();

crypto/mem.c:225:5: Assignment
          223.       if (ret != NULL)
          224.           memset(ret, 0, num);
          225.       return ret;
                     ^
          226.   }
          227.   

crypto/bn/bn_lib.c:252:9: Assignment
        250.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
        251.       else
        252.           a = OPENSSL_zalloc(words * sizeof(*a));
                       ^
        253.       if (a == NULL) {
        254.           BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);

crypto/bn/bn_lib.c:260:9: Array access: Offset added: [8, +oo] Size: [0, 67108856] by call to `BN_lshift` 
        258.       assert(b->top <= words);
        259.       if (b->top > 0)
        260.           memcpy(a, b->d, sizeof(*a) * b->top);
                       ^
        261.   
        262.       return a;
