apps/s_client.c:286: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 67108856] by call to `BN_rshift1`.
Showing all 24 steps of the trace


apps/s_client.c:285:9: Call
283.       int ret =
284.           g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
285.           BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 &&
               ^
286.           p != NULL && BN_rshift1(p, N) &&
287.           /* p = (N-1)/2 */

crypto/bn/bn_prime.c:148:12: Call
  146.                      BN_GENCB *cb)
  147.   {
  148.       return BN_is_prime_fasttest_ex(a, checks, ctx_passed, 0, cb);
                    ^
  149.   }
  150.   

crypto/bn/bn_prime.c:215:10: Call
    213.       if (mont == NULL)
    214.           goto err;
    215.       if (!BN_MONT_CTX_set(mont, a, ctx))
                    ^
    216.           goto err;
    217.   

crypto/bn/bn_mont.c:341:14: Call
      339.                   goto err;       /* Ri-- (mod word size) */
      340.           }
      341.           if (!BN_div(Ri, NULL, Ri, &tmod, ctx))
                          ^
      342.               goto err;
      343.           /*

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.   {

apps/s_client.c:286:22: Call
284.           g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) &&
285.           BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 &&
286.           p != NULL && BN_rshift1(p, N) &&
                            ^
287.           /* p = (N-1)/2 */
288.           BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 &&

crypto/bn/bn_shift.c:46:1: Parameter `r->top`
  44.   }
  45.   
  46. > int BN_rshift1(BIGNUM *r, const BIGNUM *a)
  47.   {
  48.       BN_ULONG *ap, *rp, t, c;

crypto/bn/bn_shift.c:62:13: Call
  60.       j = i - (ap[i - 1] == 1);
  61.       if (a != r) {
  62.           if (bn_wexpand(r, j) == NULL)
                    ^
  63.               return 0;
  64.           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_rshift1` 
        258.       assert(b->top <= words);
        259.       if (b->top > 0)
        260.           memcpy(a, b->d, sizeof(*a) * b->top);
                       ^
        261.   
        262.       return a;
