openssl, branch openssl-4.0.2

Prepare for release of 4.0.2

2026-08-25T11:38:35Z

Reviewed-by: Neil Horman Reviewed-by: Milan Broz MergeDate: Tue Aug 25 11:38:36 2026 Release: yes

make update

2026-08-25T11:38:34Z

Reviewed-by: Neil Horman Reviewed-by: Milan Broz MergeDate: Tue Aug 25 11:38:35 2026 Release: yes

Copyright year updates

2026-08-25T11:36:16Z

Reviewed-by: Neil Horman Reviewed-by: Milan Broz MergeDate: Tue Aug 25 11:36:17 2026 Release: yes

CHANGES.md, NEWS.md: update for 4.0.2

2026-08-25T11:33:03Z

4.0.2 CHANGES.md includes the following: * CVE-2026-14456, CVE-2026-14457, CVE-2026-18798, CVE-2026-54874, CVE-2026-54876, CVE-2026-63072, CVE-2026-63073, CVE-2026-63074, CVE-2026-63075, CVE-2026-63076, CVE-2026-75803 * https://github.com/openssl/openssl/pull/31174 "Enforce RFC 8446 ticket lifetime limit for TLS 1.3 client" (already present) * https://github.com/openssl/openssl/pull/31572 "[4.0, 3.6, 3.5, 3.4] Add icx compiler version support in perl asm scripts" * https://github.com/openssl/openssl/pull/31749 "Add documentation for OPENSSL_armcap" * https://github.com/openssl/openssl/pull/31764 "x509: fix OCSP BasicResponse leak during verification" (included as CVE-2026-54876) * https://github.com/openssl/openssl/pull/32052 "QUIC server: limit the number of pending connections" (included as CVE-2026-14456) * https://github.com/openssl/openssl/pull/32300 "[4.0] Reject explicitly supplied invalid tags and generate tags for empty AEAD messages" (included as CVE-2026-75803) * https://github.com/openssl/openssl/pull/32427 "Backport #32256 openssl 4.0 to 3.0" 4.0.2 NEWS.md includes the following: * CVE-2026-14456, CVE-2026-14457, CVE-2026-18798, CVE-2026-54874, CVE-2026-54876, CVE-2026-63072, CVE-2026-63073, CVE-2026-63074, CVE-2026-63075, CVE-2026-63076, CVE-2026-75803 * https://github.com/openssl/openssl/pull/31764 "x509: fix OCSP BasicResponse leak during verification" (included as CVE-2026-54876) * https://github.com/openssl/openssl/pull/32052 "QUIC server: limit the number of pending connections" (included as CVE-2026-14456) * https://github.com/openssl/openssl/pull/32300 "[4.0] Reject explicitly supplied invalid tags and generate tags for empty AEAD messages" (included as CVE-2026-75803) * https://github.com/openssl/openssl/pull/32427 "Backport #32256 openssl 4.0 to 3.0" Signed-off-by: Eugene Syromiatnikov 14456 Reviewed-by: Milan Broz Reviewed-by: Tomas Mraz Reviewed-by: Bob Beck Merge-date: Tue Aug 25 11:33:50 2026

CHANGES.md, NEWS.md: reorder HollowByte change log record, add missing period

2026-08-25T11:33:03Z

Move HollowByte change log record after records with assigned CVE numbers and severity ratings, add period at the end of the lead sentence, add a link to the PR in the comment. Complements: c4c5d2bbd7ab "Update CHANGES/NEWS to mention the HollowByte fix" Signed-off-by: Eugene Syromiatnikov Reviewed-by: Milan Broz Reviewed-by: Tomas Mraz Reviewed-by: Bob Beck Merge-date: Tue Aug 25 11:33:48 2026

CHANGES.md: rephrase TLS 1.3 ticket lifetime cap change log record

2026-08-25T11:33:03Z

Complements: 21c92ae589af "Enforce RFC 8446 ticket lifetime limit for TLS 1.3 client" Signed-off-by: Eugene Syromiatnikov Reviewed-by: Milan Broz Reviewed-by: Tomas Mraz Reviewed-by: Bob Beck Merge-date: Tue Aug 25 11:33:47 2026

CHANGES.md: restore removed "OpenSSL 4.0" header

2026-08-25T11:33:03Z

For some inconceivable reason, the header got removed in commit 2357b35ff7b8 "Ensure TLS 1.3 ciphersuites are actually for TLS 1.3" without any justification, or even mention. Restore it. Fixes: 2357b35ff7b8 "Ensure TLS 1.3 ciphersuites are actually for TLS 1.3" Signed-off-by: Eugene Syromiatnikov Reviewed-by: Milan Broz Reviewed-by: Tomas Mraz Reviewed-by: Bob Beck Merge-date: Tue Aug 25 11:33:46 2026

Avoid double free of qrx in port_default_packet_handler()

2026-08-24T15:46:32Z

port_default_packet_handler() may perform double free of qrx when channel creation fails. The port_default_packet_handler() transfers ownership of qrx to channel/connection via call to port_bind_channel(). The port_bind_channel() however may release the qrx when channel can not be bound. The error is then detected in port_default_packet_handler() which then agains releases qrx for the second time. The fix is to add a reference counter to QRX object so transfer of ownership between port_default_packet_handler() and QUIC_CHANNEL can be handled safely. Fixes CVE-2026-18798 Reviewed-by: Igor Ustinov Reviewed-by: Andrew Dinh Merge-date: Mon Aug 24 15:46:33 2026

ssl/record: remove dead DTLS processed_rcds record queue

2026-08-24T15:38:21Z

rl->processed_rcds and the functions that serviced it (dtls_copy_rlayer_record(), dtls_retrieve_rlayer_buffered_record()) were unreachable: nothing in the codebase ever inserted a record into that queue, so the only consumer of it - the check at the top of dtls_get_more_records() - always saw an empty queue. The real mechanism for handing buffered next-epoch records to the next epoch's record layer is the unrelated forwarding code in dtls_free(), which pushes the raw bytes from rl->unprocessed_rcds onto rl->next. Assisted-by: Claude:claude-sonnet-4-6 Reviewed-by: Milan Broz Reviewed-by: Tomas Mraz Reviewed-by: Andrew Dinh Merge-date: Mon Aug 24 15:38:27 2026

ssl/record/methods/dtls_meth.c: lower the unprocessed_rcds queue limit

2026-08-24T15:38:21Z

100 buffered next-epoch records is far more than a normal handshake ever needs. A peer that has already completed its side of the epoch transition may send more than one record under the new epoch before we catch up and bump our own receive epoch - for example, application data sent immediately once the peer considers the handshake done - but real-world bursts like that are still small. Now that each entry only costs as much memory as the record actually received, the limit mainly serves as a ceiling on worst-case per-connection memory use, so lower it to 16 to keep that ceiling smaller while still leaving ample headroom over legitimate usage. Assisted-by: Claude:claude-sonnet-4-6 Reviewed-by: Milan Broz Reviewed-by: Tomas Mraz Reviewed-by: Andrew Dinh Merge-date: Mon Aug 24 15:38:26 2026