test/bntest.c:1906: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 67108856] by call to `BN_asc2bn`.
Showing all 23 steps of the trace


test/bntest.c:1906:17: Call
1904.   
1905.       if (!TEST_ptr(bn = BN_new())
1906.               || !TEST_true(BN_asc2bn(&bn, test->base10)))
                        ^
1907.           goto err;
1908.       mpi_len = BN_bn2mpi(bn, NULL);

crypto/bn/bn_conv.c:269:1: Parameter `(*bn)->top`
  267.   }
  268.   
  269. > int BN_asc2bn(BIGNUM **bn, const char *a)
  270.   {
  271.       const char *p = a;

crypto/bn/bn_conv.c:277:14: Call
  275.   
  276.       if (p[0] == '0' && (p[1] == 'X' || p[1] == 'x')) {
  277.           if (!BN_hex2bn(bn, p + 2))
                      ^
  278.               return 0;
  279.       } else {

crypto/bn/bn_conv.c:126:1: Parameter `(*bn)->top`
    124.   #endif
    125.   
    126. > int BN_hex2bn(BIGNUM **bn, const char *a)
    127.   {
    128.       BIGNUM *ret = NULL;

crypto/bn/bn_conv.c:157:9: Call
    155.       } else {
    156.           ret = *bn;
    157.           BN_zero(ret);
                   ^
    158.       }
    159.   

crypto/bn/bn_lib.c:361:1: Parameter `a->top`
      359.   }
      360.   
      361. > int BN_set_word(BIGNUM *a, BN_ULONG w)
      362.   {
      363.       bn_check_top(a);

crypto/bn/bn_lib.c:364:9: Call
      362.   {
      363.       bn_check_top(a);
      364.       if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)
                     ^
      365.           return 0;
      366.       a->neg = 0;

crypto/bn/bn_lcl.h:660:1: Parameter `a->top`
        658.                            const BIGNUM *add, const BIGNUM *rem, BN_CTX *ctx);
        659.   
        660. > static ossl_inline BIGNUM *bn_expand(BIGNUM *a, int bits)
        661.   {
        662.       if (bits > (INT_MAX - BN_BITS2 + 1))

crypto/bn/bn_lcl.h:668:12: Call
        666.           return a;
        667.   
        668.       return bn_expand2((a),(bits+BN_BITS2-1)/BN_BITS2);
                          ^
        669.   }
        670.   

crypto/bn/bn_lib.c:245:1: Parameter `b->top`
          243.    */
          244.   
          245. > BIGNUM *bn_expand2(BIGNUM *b, int words)
          246.   {
          247.       if (words > b->dmax) {

crypto/bn/bn_lib.c:248:23: Call
          246.   {
          247.       if (words > b->dmax) {
          248.           BN_ULONG *a = bn_expand_internal(b, words);
                                       ^
          249.           if (!a)
          250.               return NULL;

crypto/bn/bn_lib.c:209:1: <Offset trace>
207.   /* This is used by bn_expand2() */
208.   /* The caller MUST check that words > b->dmax before calling this */
209. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
210.   {
211.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:209:1: Parameter `b->top`
            207.   /* This is used by bn_expand2() */
            208.   /* The caller MUST check that words > b->dmax before calling this */
            209. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
            210.   {
            211.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:209:1: <Length trace>
207.   /* This is used by bn_expand2() */
208.   /* The caller MUST check that words > b->dmax before calling this */
209. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
210.   {
211.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:209:1: Parameter `words`
            207.   /* This is used by bn_expand2() */
            208.   /* The caller MUST check that words > b->dmax before calling this */
            209. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
            210.   {
            211.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:224:13: Call
            222.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
            223.       else
            224.           a = OPENSSL_zalloc(words * sizeof(*a));
                               ^
            225.       if (a == NULL) {
            226.           BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);

crypto/mem.c:228:1: Parameter `num`
              226.   }
              227.   
              228. > void *CRYPTO_zalloc(size_t num, const char *file, int line)
              229.   {
              230.       void *ret = CRYPTO_malloc(num, file, line);

crypto/mem.c:230:17: Call
              228.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
              229.   {
              230.       void *ret = CRYPTO_malloc(num, file, line);
                                     ^
              231.   
              232.       FAILTEST();

crypto/mem.c:201:9: Assignment
                199.   
                200.       if (num == 0)
                201.           return NULL;
                               ^
                202.   
                203.       FAILTEST();

crypto/mem.c:230:5: Assignment
              228.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
              229.   {
              230.       void *ret = CRYPTO_malloc(num, file, line);
                         ^
              231.   
              232.       FAILTEST();

crypto/mem.c:235:5: Assignment
              233.       if (ret != NULL)
              234.           memset(ret, 0, num);
              235.       return ret;
                         ^
              236.   }
              237.   

crypto/bn/bn_lib.c:224:9: Assignment
            222.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
            223.       else
            224.           a = OPENSSL_zalloc(words * sizeof(*a));
                           ^
            225.       if (a == NULL) {
            226.           BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);

crypto/bn/bn_lib.c:232:9: Array access: Offset added: [8, +oo] Size: [0, 67108856] by call to `BN_asc2bn` 
            230.       assert(b->top <= words);
            231.       if (b->top > 0)
            232.           memcpy(a, b->d, sizeof(*a) * b->top);
                           ^
            233.   
            234.       return a;
