test/stack_test.c:97: error: USE_AFTER_FREE
  call to `sk_sint_push()` eventually accesses memory that was invalidated by call to `free()` on line 97 indirectly during the call to `sk_sint_push()`.
Showing all 24 steps of the trace


test/stack_test.c:83:25: invalidation part of the trace starts here
81.       };
82.       const int n_exfinds = OSSL_NELEM(exfinds);
83.       STACK_OF(sint) *s = sk_sint_new_null();
                              ^
84.       int i;
85.       int testresult = 0;

test/stack_test.c:83:25: passed as argument to `sk_sint_new_null`
  81.       };
  82.       const int n_exfinds = OSSL_NELEM(exfinds);
  83.       STACK_OF(sint) *s = sk_sint_new_null();
                                ^
  84.       int i;
  85.       int testresult = 0;

test/stack_test.c:83:25: return from call to `sk_sint_new_null`
  81.       };
  82.       const int n_exfinds = OSSL_NELEM(exfinds);
  83.       STACK_OF(sint) *s = sk_sint_new_null();
                                ^
  84.       int i;
  85.       int testresult = 0;

test/stack_test.c:83:5: assigned
  81.       };
  82.       const int n_exfinds = OSSL_NELEM(exfinds);
  83.       STACK_OF(sint) *s = sk_sint_new_null();
            ^
  84.       int i;
  85.       int testresult = 0;

test/stack_test.c:97:9: when calling `sk_sint_push` here
  95.               goto end;
  96.           }
  97.           sk_sint_push(s, v + i);
                 ^
  98.       }
  99.       if (!TEST_int_eq(sk_sint_num(s), n))

test/stack_test.c:39:1: parameter `sk` of sk_sint_push
    37.   } SU;
    38.   
    39. > DEFINE_SPECIAL_STACK_OF(sint, int)
    40.   DEFINE_SPECIAL_STACK_OF_CONST(uchar, unsigned char)
    41.   DEFINE_STACK_OF(SS)

test/stack_test.c:39:1: when calling `OPENSSL_sk_push` here
    37.   } SU;
    38.   
    39. > DEFINE_SPECIAL_STACK_OF(sint, int)
    40.   DEFINE_SPECIAL_STACK_OF_CONST(uchar, unsigned char)
    41.   DEFINE_STACK_OF(SS)

crypto/stack/stack.c:305:1: parameter `st` of OPENSSL_sk_push
      303.   }
      304.   
      305. > int OPENSSL_sk_push(OPENSSL_STACK *st, const void *data)
      306.   {
      307.       if (st == NULL)

crypto/stack/stack.c:309:12: when calling `OPENSSL_sk_insert` here
      307.       if (st == NULL)
      308.           return -1;
      309.       return OPENSSL_sk_insert(st, data, st->num);
                        ^
      310.   }
      311.   

crypto/stack/stack.c:216:1: parameter `st` of OPENSSL_sk_insert
        214.   }
        215.   
        216. > int OPENSSL_sk_insert(OPENSSL_STACK *st, const void *data, int loc)
        217.   {
        218.       if (st == NULL || st->num == max_nodes)

crypto/stack/stack.c:221:10: when calling `sk_reserve` here
        219.           return 0;
        220.   
        221.       if (!sk_reserve(st, 1, 0))
                        ^
        222.           return 0;
        223.   

crypto/stack/stack.c:160:1: parameter `st` of sk_reserve
          158.   
          159.   /* internal STACK storage allocation */
          160. > static int sk_reserve(OPENSSL_STACK *st, int n, int exact)
          161.   {
          162.       const void **tmpdata;

crypto/stack/stack.c:197:15: when calling `CRYPTO_realloc` here
          195.       }
          196.   
          197.       tmpdata = OPENSSL_realloc((void *)st->data, sizeof(void *) * num_alloc);
                               ^
          198.       if (tmpdata == NULL)
          199.           return 0;

crypto/mem.c:228:1: parameter `str` of CRYPTO_realloc
            226.   }
            227.   
            228. > void *CRYPTO_realloc(void *str, size_t num, const char *file, int line)
            229.   {
            230.       INCREMENT(realloc_count);

crypto/mem.c:239:9: when calling `CRYPTO_free` here
            237.   
            238.       if (num == 0) {
            239.           CRYPTO_free(str, file, line);
                           ^
            240.           return NULL;
            241.       }

crypto/mem.c:286:1: parameter `str` of CRYPTO_free
              284.   }
              285.   
              286. > void CRYPTO_free(void *str, const char *file, int line)
              287.   {
              288.       INCREMENT(free_count);

crypto/mem.c:303:5: was invalidated by call to `free()`
              301.       }
              302.   #else
              303.       free(str);
                         ^
              304.   #endif
              305.   }

test/stack_test.c:83:25: use-after-lifetime part of the trace starts here
81.       };
82.       const int n_exfinds = OSSL_NELEM(exfinds);
83.       STACK_OF(sint) *s = sk_sint_new_null();
                              ^
84.       int i;
85.       int testresult = 0;

test/stack_test.c:83:25: passed as argument to `sk_sint_new_null`
  81.       };
  82.       const int n_exfinds = OSSL_NELEM(exfinds);
  83.       STACK_OF(sint) *s = sk_sint_new_null();
                                ^
  84.       int i;
  85.       int testresult = 0;

test/stack_test.c:83:25: return from call to `sk_sint_new_null`
  81.       };
  82.       const int n_exfinds = OSSL_NELEM(exfinds);
  83.       STACK_OF(sint) *s = sk_sint_new_null();
                                ^
  84.       int i;
  85.       int testresult = 0;

test/stack_test.c:83:5: assigned
  81.       };
  82.       const int n_exfinds = OSSL_NELEM(exfinds);
  83.       STACK_OF(sint) *s = sk_sint_new_null();
            ^
  84.       int i;
  85.       int testresult = 0;

test/stack_test.c:97:9: when calling `sk_sint_push` here
  95.               goto end;
  96.           }
  97.           sk_sint_push(s, v + i);
                 ^
  98.       }
  99.       if (!TEST_int_eq(sk_sint_num(s), n))

crypto/mem.c:286:1: parameter `str` of CRYPTO_free
    284.   }
    285.   
    286. > void CRYPTO_free(void *str, const char *file, int line)
    287.   {
    288.       INCREMENT(free_count);

crypto/mem.c:303:5: invalid access occurs here
    301.       }
    302.   #else
    303.       free(str);
               ^
    304.   #endif
    305.   }
