[openssl/openssl] 71d5c2: crypto/evp: align exchange.c cleanup with kem/sig/...

"'Bruno' via openssl-commits" <[email protected]>
Newsgroups gmane.comp.encryption.openssl.cvs
Message-ID <openssl/openssl/push/refs/heads/openssl-3.4/[email protected]>
  Branch: refs/heads/openssl-3.4
  Home:   https://github.com/openssl/openssl
  Commit: 71d5c22d72414410e0d1f16f676281ac1e8c90ba
      https://github.com/openssl/openssl/commit/71d5c22d72414410e0d1f16f676281ac1e8c90ba
  Author: sucloudflare <[email protected]>
  Date:   2026-06-10 (Wed, 10 Jun 2026)

  Changed paths:
    M crypto/evp/exchange.c

  Log Message:
  -----------
  crypto/evp: align exchange.c cleanup with kem/sig/asymcipher pattern

Commit a21f77d added explicit null assignments after EVP_KEYMGMT_free()
calls at the err:, legacy:, and success exit paths in kem.c,
asymcipher.c and signature.c.

The identical exit paths in evp_keyexch_init() (crypto/evp/exchange.c)
were not updated at the same time, leaving exchange.c as the only
outlier in the family without these null assignments.

This patch brings exchange.c into consistency with its sibling files
by adding exchange = NULL and tmp_keymgmt = NULL after each free at
the exit paths, matching the established pattern from a21f77d.

No functional change intended.

Reviewed-by: Neil Horman <[email protected]>
Reviewed-by: Tomas Mraz <[email protected]>
MergeDate: Wed Jun 10 11:21:08 2026
(Merged from https://github.com/openssl/openssl/pull/31394)



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