[openssl/openssl] 01f408: lms: free previous encoded public key in ossl_lms_...

  Branch: refs/heads/openssl-4.0
  Home:   https://github.com/openssl/openssl
  Commit: 01f40897bbb423e3b7e84a4f08d72e10c64cf4ff
      https://github.com/openssl/openssl/commit/01f40897bbb423e3b7e84a4f08d72e10c64cf4ff
  Author: rootvector2 <[email protected]>
  Date:   2026-06-25 (Thu, 25 Jun 2026)

  Changed paths:
    M crypto/lms/lms_pubkey_decode.c

  Log Message:
  -----------
  lms: free previous encoded public key in ossl_lms_pubkey_decode

ossl_lms_pubkey_decode() only freed pkey->encoded when the new public key
had a different length, so re-decoding a same-length key on the documented
repeated-call path overwrote the old buffer without freeing it. Always free
the existing buffer first.

Also clear pkey->encodedlen on the error path so a failed decode leaves the
key in a consistent state instead of keeping a stale length.

CLA: trivial

Reviewed-by: Nikola Pajkovsky <[email protected]>
Reviewed-by: Bob Beck <[email protected]>
Reviewed-by: Tomas Mraz <[email protected]>
MergeDate: Thu Jun 25 16:58:46 2026
(Merged from https://github.com/openssl/openssl/pull/31345)

(cherry picked from commit f9e7cb8cd45aac3e52a309f10d084c447c3945ed)



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