[openssl/openssl] 4a5088: ssl_cipher_get_overhead(): Replace size_t with int...

[JiashengJiang]

  Branch: refs/heads/master
  Home:   https://github.com/openssl/openssl
  Commit: 4a5088259e78127354f497931568de409ac905fc
      https://github.com/openssl/openssl/commit/4a5088259e78127354f497931568de409ac905fc
  Author: Jiasheng Jiang <jiasheng at purdue.edu>
  Date:   2024-05-10 (Fri, 10 May 2024)

  Changed paths:
    M ssl/ssl_ciph.c

  Log Message:
  -----------
  ssl_cipher_get_overhead(): Replace size_t with int and add the checks

Replace the type of "mac", "out", and "blk" with int to avoid implicit
conversion when it is assigned by EVP_MD_get_size(),
EVP_CIPHER_get_iv_length(), and EVP_CIPHER_get_block_size().
Moreover, add the checks to avoid integer overflow.

Fixes: 045bd04706 ("Add DTLS_get_data_mtu() function")
Signed-off-by: Jiasheng Jiang <jiasheng at purdue.edu>

Reviewed-by: Tom Cosgrove <tom.cosgrove at arm.com>
Reviewed-by: Tomas Mraz <tomas at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/23935)



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