[openssl/openssl] ad3c3c: Harden ASN1_mbstring_ncopy

[Pocs Norbert]

Branch: refs/heads/openssl-3.6
Home: https://github.com/openssl/openssl
Commit: ad3c3c17f8f2f78548fc20b8d06814e7f50313b0
https://github.com/openssl/openssl/commit/ad3c3c17f8f2f78548fc20b8d06814e7f50313b0
Author: Norbert Pocs <norb...@openssl.org>
Date: 2025-12-18 (Thu, 18 Dec 2025)

Changed paths:
M crypto/asn1/a_mbstr.c
M test/asn1_internal_test.c

Log Message:
-----------
Harden ASN1_mbstring_ncopy

Reported by Murali Aniruddhan

Signed-off-by: Norbert Pocs <norb...@openssl.org>

Reviewed-by: Nikola Pajkovsky <nik...@openssl.org>
Reviewed-by: Viktor Dukhovni <vik...@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/29376)


Commit: 7e9cac9832e4705b91987c2474ed06a37a93cecb
https://github.com/openssl/openssl/commit/7e9cac9832e4705b91987c2474ed06a37a93cecb
Author: Norbert Pocs <norb...@openssl.org>
Date: 2025-12-18 (Thu, 18 Dec 2025)

Changed paths:
M crypto/asn1/a_strex.c
M crypto/pkcs12/p12_utl.c

Log Message:
-----------
Check return code of UTF8_putc

Signed-off-by: Norbert Pocs <norb...@openssl.org>

Reviewed-by: Nikola Pajkovsky <nik...@openssl.org>
Reviewed-by: Viktor Dukhovni <vik...@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/29376)


Compare: https://github.com/openssl/openssl/compare/bcf75912c5f2...7e9cac9832e4

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