crypto/evp/e_chacha20_poly1305.c:452: error: INTEGER_OVERFLOW_L2
  ([-2, +oo] - [-15, 15]):unsigned64 by call to `chacha20_poly1305_cipher`.
Showing all 9 steps of the trace


crypto/evp/e_chacha20_poly1305.c:452:13: Call
450.               actx->key.counter[3] = actx->nonce[2] ^ CHACHA_U8TOU32(aad+4);
451.               actx->mac_inited = 0;
452.               chacha20_poly1305_cipher(ctx, NULL, aad, EVP_AEAD_TLS1_AAD_LEN);
                   ^
453.               return POLY1305_BLOCK_SIZE;         /* tag length */
454.           }

crypto/evp/e_chacha20_poly1305.c:233:1: Parameter `len`
  231.   }
  232.   
  233. > static int chacha20_poly1305_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
  234.                                       const unsigned char *in, size_t len)
  235.   {

crypto/evp/e_chacha20_poly1305.c:254:13: Call
  252.       if (in) {                                   /* aad or text */
  253.           if (out == NULL) {                      /* aad */
  254.               Poly1305_Update(POLY1305_ctx(actx), in, len);
                     ^
  255.               actx->len.aad += len;
  256.               actx->aad = 1;

crypto/poly1305/poly1305.c:457:1: <LHS trace>
455.   }
456.   
457. > void Poly1305_Update(POLY1305 *ctx, const unsigned char *inp, size_t len)
458.   {
459.   #ifdef POLY1305_ASM

crypto/poly1305/poly1305.c:457:1: Parameter `len`
    455.   }
    456.   
    457. > void Poly1305_Update(POLY1305 *ctx, const unsigned char *inp, size_t len)
    458.   {
    459.   #ifdef POLY1305_ASM

crypto/poly1305/poly1305.c:457:1: <RHS trace>
455.   }
456.   
457. > void Poly1305_Update(POLY1305 *ctx, const unsigned char *inp, size_t len)
458.   {
459.   #ifdef POLY1305_ASM

crypto/poly1305/poly1305.c:457:1: Parameter `len`
    455.   }
    456.   
    457. > void Poly1305_Update(POLY1305 *ctx, const unsigned char *inp, size_t len)
    458.   {
    459.   #ifdef POLY1305_ASM

crypto/poly1305/poly1305.c:485:5: Assignment
    483.       }
    484.   
    485.       rem = len % POLY1305_BLOCK_SIZE;
               ^
    486.       len -= rem;
    487.   

crypto/poly1305/poly1305.c:486:5: Binary operation: ([-2, +oo] - [-15, 15]):unsigned64 by call to `chacha20_poly1305_cipher` 
    484.   
    485.       rem = len % POLY1305_BLOCK_SIZE;
    486.       len -= rem;
               ^
    487.   
    488.       if (len >= POLY1305_BLOCK_SIZE) {
