[openssl/openssl] a3bfc4: i2d_name_canon(): Check overflow in len accumulation

[Tomáš Mráz]

  Branch: refs/heads/openssl-3.2
  Home:   https://github.com/openssl/openssl
  Commit: a3bfc4fd5b5641b05d6611073146627cf9114436
      https://github.com/openssl/openssl/commit/a3bfc4fd5b5641b05d6611073146627cf9114436
  Author: Tomas Mraz <tomas at openssl.org>
  Date:   2024-07-21 (Sun, 21 Jul 2024)

  Changed paths:
    M crypto/x509/x_name.c

  Log Message:
  -----------
  i2d_name_canon(): Check overflow in len accumulation

Fixes Coverity 1604638

Reviewed-by: Neil Horman <nhorman at openssl.org>
Reviewed-by: Paul Dale <ppzgs1 at gmail.com>
Reviewed-by: Todd Short <todd.short at me.com>
(Merged from https://github.com/openssl/openssl/pull/24930)

(cherry picked from commit b2deefb9d262f0f9eae6964006df98c2fa24daac)
(cherry picked from commit dd744cd19b3ff2bdc320c8a77b5c32ff543eaeb3)



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