[openssl/openssl] c3efe5: Fix memory leak in X509V3_add1_i2d when flag is X5...

[Tomas Mraz]

  Branch: refs/heads/OpenSSL_1_1_1-stable
  Home:   https://github.openssl.org/openssl/openssl
  Commit: c3efe5c96128d699f0884128ce905906bc28ed34
      https://github.openssl.org/openssl/openssl/commit/c3efe5c96128d699f0884128ce905906bc28ed34
  Author: Allan <allanchang96 at gmail.com>
  Date:   2022-07-11 (Mon, 11 Jul 2022)

  Changed paths:
    M crypto/x509v3/v3_lib.c

  Log Message:
  -----------
  Fix memory leak in X509V3_add1_i2d when flag is X509V3_ADD_DELETE

Fixes #18677

Reviewed-by: Hugo Landau <hlandau at openssl.org>
Reviewed-by: Tomas Mraz <tomas at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18698)

(cherry picked from commit 4798e0680b112993815098ca21d7d68ff31ebc6e)