[openssl/openssl] 243cc6: CMS: Guard against int overflow in cms_kek_cipher()

  Branch: refs/heads/openssl-3.6
  Home:   https://github.com/openssl/openssl
  Commit: 243cc628d0c2425aca735026afe9c5adcbac2550
      https://github.com/openssl/openssl/commit/243cc628d0c2425aca735026afe9c5adcbac2550
  Author: Daniel Kubec <[email protected]>
  Date:   2026-07-29 (Wed, 29 Jul 2026)

  Changed paths:
    M crypto/cms/cms_kemri.c

  Log Message:
  -----------
  CMS: Guard against int overflow in cms_kek_cipher()

Mirror the check from cms_kari.c in cms_kemri.c.

Reviewed-by: Jakub Zelenka <[email protected]>
Reviewed-by: Paul Dale <[email protected]>
MergeDate: Wed Jul 29 16:56:18 2026
(Merged from https://github.com/openssl/openssl/pull/32072)

(cherry picked from commit 14149949d5c13c12c92a17f1a9eb943a003d0f43)



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