crypto/dh/dh_check.c:128: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 67108856] by call to `BN_rshift1`.
Showing all 23 steps of the trace


crypto/dh/dh_check.c:100:14: Call
98.               *ret |= DH_CHECK_Q_NOT_PRIME;
99.           /* Check p == 1 mod q  i.e. q divides p - 1 */
100.           if (!BN_div(t1, t2, dh->p, dh->q, ctx))
                    ^
101.               goto err;
102.           if (!BN_is_one(t2))

crypto/bn/bn_div.c:140:1: Parameter `dv->top`
  138.    * If 'dv' or 'rm' is NULL, the respective value is not returned.
  139.    */
  140. > int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,
  141.              BN_CTX *ctx)
  142.   {

crypto/dh/dh_check.c:128:14: Call
126.           *ret |= DH_CHECK_P_NOT_PRIME;
127.       else if (!dh->q) {
128.           if (!BN_rshift1(t1, dh->p))
                    ^
129.               goto err;
130.           r = BN_is_prime_ex(t1, BN_prime_checks, ctx, NULL);

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:55:9: Call
  53.   
  54.       if (BN_is_zero(a)) {
  55.           BN_zero(r);
                ^
  56.           return 1;
  57.       }

crypto/bn/bn_lib.c:398:1: Parameter `a->top`
    396.   }
    397.   
    398. > int BN_set_word(BIGNUM *a, BN_ULONG w)
    399.   {
    400.       bn_check_top(a);

crypto/bn/bn_lib.c:401:9: Call
    399.   {
    400.       bn_check_top(a);
    401.       if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)
                   ^
    402.           return (0);
    403.       a->neg = 0;

crypto/bn/bn_lcl.h:658:1: Parameter `a->top`
      656.                            const BIGNUM *add, const BIGNUM *rem, BN_CTX *ctx);
      657.   
      658. > static ossl_inline BIGNUM *bn_expand(BIGNUM *a, int bits)
      659.   {
      660.       if (bits > (INT_MAX - BN_BITS2 + 1))

crypto/bn/bn_lcl.h:666:12: Call
      664.           return a;
      665.   
      666.       return bn_expand2((a),(bits+BN_BITS2-1)/BN_BITS2);
                        ^
      667.   }
      668.   

crypto/bn/bn_lib.c:284:1: Parameter `b->top`
        282.    */
        283.   
        284. > BIGNUM *bn_expand2(BIGNUM *b, int words)
        285.   {
        286.       bn_check_top(b);

crypto/bn/bn_lib.c:289:23: Call
        287.   
        288.       if (words > b->dmax) {
        289.           BN_ULONG *a = bn_expand_internal(b, words);
                                     ^
        290.           if (!a)
        291.               return NULL;

crypto/bn/bn_lib.c:246:1: <Offset trace>
244.   /* This is used by bn_expand2() */
245.   /* The caller MUST check that words > b->dmax before calling this */
246. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
247.   {
248.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:246:1: Parameter `b->top`
          244.   /* This is used by bn_expand2() */
          245.   /* The caller MUST check that words > b->dmax before calling this */
          246. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
          247.   {
          248.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:246:1: <Length trace>
244.   /* This is used by bn_expand2() */
245.   /* The caller MUST check that words > b->dmax before calling this */
246. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
247.   {
248.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:246:1: Parameter `words`
          244.   /* This is used by bn_expand2() */
          245.   /* The caller MUST check that words > b->dmax before calling this */
          246. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
          247.   {
          248.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:263:13: Call
          261.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
          262.       else
          263.           a = OPENSSL_zalloc(words * sizeof(*a));
                             ^
          264.       if (a == NULL) {
          265.           BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);

crypto/mem.c:198:1: Parameter `num`
            196.   }
            197.   
            198. > void *CRYPTO_zalloc(size_t num, const char *file, int line)
            199.   {
            200.       void *ret = CRYPTO_malloc(num, file, line);

crypto/mem.c:200:17: Call
            198.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
            199.   {
            200.       void *ret = CRYPTO_malloc(num, file, line);
                                   ^
            201.   
            202.       FAILTEST();

crypto/mem.c:178:9: Assignment
              176.   
              177.       if (num == 0)
              178.           return NULL;
                             ^
              179.   
              180.       FAILTEST();

crypto/mem.c:200:5: Assignment
            198.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
            199.   {
            200.       void *ret = CRYPTO_malloc(num, file, line);
                       ^
            201.   
            202.       FAILTEST();

crypto/mem.c:205:5: Assignment
            203.       if (ret != NULL)
            204.           memset(ret, 0, num);
            205.       return ret;
                       ^
            206.   }
            207.   

crypto/bn/bn_lib.c:263:9: Assignment
          261.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
          262.       else
          263.           a = OPENSSL_zalloc(words * sizeof(*a));
                         ^
          264.       if (a == NULL) {
          265.           BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);

crypto/bn/bn_lib.c:271:9: Array access: Offset added: [8, +oo] Size: [0, 67108856] by call to `BN_rshift1` 
          269.       assert(b->top <= words);
          270.       if (b->top > 0)
          271.           memcpy(a, b->d, sizeof(*a) * b->top);
                         ^
          272.   
          273.       return a;
