[openssl/openssl] cfb0b4: Fixes for potential deadlock

[Christian Chinchole]

  Branch: refs/heads/openssl-3.2
  Home:   https://github.com/openssl/openssl
  Commit: cfb0b41bf87de07cd8a325677d01c403a83234e8
      https://github.com/openssl/openssl/commit/cfb0b41bf87de07cd8a325677d01c403a83234e8
  Author: cchinchole <cpchinchole at gmail.com>
  Date:   2024-07-03 (Wed, 03 Jul 2024)

  Changed paths:
    M crypto/engine/eng_list.c

  Log Message:
  -----------
  Fixes for potential deadlock

Fixes (#24517):
(3/3) Addresses the potential deadlock if an error occurs from up_ref
in functions ENGINE_get_first, ENGINE_get_last, ENGINE_get_next, and
ENGINE_get_prev in file crypto/engine/eng_list.c

CLA: trivial

Reviewed-by: Neil Horman <nhorman at openssl.org>
Reviewed-by: Tomas Mraz <tomas at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/24780)

(cherry picked from commit e6174ca4d48f6f4f954dd87f2cdf3718af14f064)



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