crypto/pkcs12/p12_crt.c:288: error: USE_AFTER_FREE
  call to `sk_PKCS7_free()` eventually accesses memory that was invalidated by call to `free()` on line 281 indirectly during the call to `sk_PKCS7_push()`.
Showing all 22 steps of the trace


crypto/pkcs12/p12_crt.c:260:19: invalidation part of the trace starts here
258.   
259.       if (!*psafes) {
260.           *psafes = sk_PKCS7_new_null();
                         ^
261.           if (!*psafes)
262.               return 0;

crypto/pkcs12/p12_crt.c:260:19: passed as argument to `sk_PKCS7_new_null`
  258.   
  259.       if (!*psafes) {
  260.           *psafes = sk_PKCS7_new_null();
                           ^
  261.           if (!*psafes)
  262.               return 0;

crypto/pkcs12/p12_crt.c:260:19: return from call to `sk_PKCS7_new_null`
  258.   
  259.       if (!*psafes) {
  260.           *psafes = sk_PKCS7_new_null();
                           ^
  261.           if (!*psafes)
  262.               return 0;

crypto/pkcs12/p12_crt.c:260:9: assigned
  258.   
  259.       if (!*psafes) {
  260.           *psafes = sk_PKCS7_new_null();
                 ^
  261.           if (!*psafes)
  262.               return 0;

crypto/pkcs12/p12_crt.c:281:10: when calling `sk_PKCS7_push` here
  279.           goto err;
  280.   
  281.       if (!sk_PKCS7_push(*psafes, p7))
                  ^
  282.           goto err;
  283.   

include/openssl/pkcs7.h:200:1: parameter `sk` of sk_PKCS7_push
    198.   } PKCS7;
    199.   
    200. > DEFINE_STACK_OF(PKCS7)
    201.   
    202.   # define PKCS7_OP_SET_DETACHED_SIGNATURE 1

include/openssl/pkcs7.h:200:1: when calling `sk_push` here
    198.   } PKCS7;
    199.   
    200. > DEFINE_STACK_OF(PKCS7)
    201.   
    202.   # define PKCS7_OP_SET_DETACHED_SIGNATURE 1

crypto/stack/stack.c:259:1: parameter `st` of sk_push
      257.   }
      258.   
      259. > int sk_push(_STACK *st, void *data)
      260.   {
      261.       return (sk_insert(st, data, st->num));

crypto/stack/stack.c:261:13: when calling `sk_insert` here
      259.   int sk_push(_STACK *st, void *data)
      260.   {
      261.       return (sk_insert(st, data, st->num));
                         ^
      262.   }
      263.   

crypto/stack/stack.c:167:1: parameter `st` of sk_insert
        165.   }
        166.   
        167. > int sk_insert(_STACK *st, void *data, int loc)
        168.   {
        169.       char **s;

crypto/stack/stack.c:174:13: when calling `CRYPTO_realloc` here
        172.           return 0;
        173.       if (st->num_alloc <= st->num + 1) {
        174.           s = OPENSSL_realloc((char *)st->data,
                           ^
        175.                               (unsigned int)sizeof(char *) * st->num_alloc * 2);
        176.           if (s == NULL)

crypto/mem.c:166:1: parameter `str` of CRYPTO_realloc
          164.   }
          165.   
          166. > void *CRYPTO_realloc(void *str, size_t num, const char *file, int line)
          167.   {
          168.       if (str == NULL)

crypto/mem.c:172:9: when calling `CRYPTO_free` here
          170.   
          171.       if (num == 0) {
          172.           CRYPTO_free(str);
                         ^
          173.           return NULL;
          174.       }

crypto/mem.c:234:1: parameter `str` of CRYPTO_free
            232.   }
            233.   
            234. > void CRYPTO_free(void *str)
            235.   {
            236.   #ifdef CRYPTO_MDEBUG

crypto/mem.c:245:5: was invalidated by call to `free()`
            243.       }
            244.   #else
            245.       free(str);
                       ^
            246.   #endif
            247.   }

crypto/pkcs12/p12_crt.c:260:19: use-after-lifetime part of the trace starts here
258.   
259.       if (!*psafes) {
260.           *psafes = sk_PKCS7_new_null();
                         ^
261.           if (!*psafes)
262.               return 0;

crypto/pkcs12/p12_crt.c:260:19: passed as argument to `sk_PKCS7_new_null`
  258.   
  259.       if (!*psafes) {
  260.           *psafes = sk_PKCS7_new_null();
                           ^
  261.           if (!*psafes)
  262.               return 0;

crypto/pkcs12/p12_crt.c:260:19: return from call to `sk_PKCS7_new_null`
  258.   
  259.       if (!*psafes) {
  260.           *psafes = sk_PKCS7_new_null();
                           ^
  261.           if (!*psafes)
  262.               return 0;

crypto/pkcs12/p12_crt.c:260:9: assigned
  258.   
  259.       if (!*psafes) {
  260.           *psafes = sk_PKCS7_new_null();
                 ^
  261.           if (!*psafes)
  262.               return 0;

crypto/pkcs12/p12_crt.c:288:9: when calling `sk_PKCS7_free` here
  286.    err:
  287.       if (free_safes) {
  288.           sk_PKCS7_free(*psafes);
                 ^
  289.           *psafes = NULL;
  290.       }

crypto/mem.c:234:1: parameter `str` of CRYPTO_free
    232.   }
    233.   
    234. > void CRYPTO_free(void *str)
    235.   {
    236.   #ifdef CRYPTO_MDEBUG

crypto/mem.c:245:5: invalid access occurs here
    243.       }
    244.   #else
    245.       free(str);
               ^
    246.   #endif
    247.   }
