[openssl/openssl] cfaa79: Fix potential memory leak in OSSL_IETF_ATTR_SYNTAX...

[Sashan]

  Branch: refs/heads/master
  Home:   https://github.com/openssl/openssl
  Commit: cfaa79f837968cdf1b988e0f39cf2c31179c5740
      https://github.com/openssl/openssl/commit/cfaa79f837968cdf1b988e0f39cf2c31179c5740
  Author: sashan <anedvedicky at gmail.com>
  Date:   2024-05-30 (Thu, 30 May 2024)

  Changed paths:
    M crypto/x509/x_ietfatt.c

  Log Message:
  -----------
  Fix potential memory leak in OSSL_IETF_ATTR_SYNTAX_add1_value()

The function may leak memory if it deals with an unknown type.
Issue reported by LuMingYinDetect.

Fixes #24452

Reviewed-by: Todd Short <todd.short at me.com>
Reviewed-by: Tomas Mraz <tomas at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/24454)



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