Add erratum for the TCP socket identification fixed with commit 854277e2cc8c ("landlock: Fix non-TCP sockets restriction").

Fixes: 854277e2cc8c ("landlock: Fix non-TCP sockets restriction") Cc: Günther Noack gnoack@google.com Cc: Mikhail Ivanov ivanov.mikhail1@huawei-partners.com Cc: stable@vger.kernel.org Signed-off-by: Mickaël Salaün mic@digikod.net Link: https://lore.kernel.org/r/20250318161443.279194-4-mic@digikod.net ---

Changes since v1: - New patch. --- security/landlock/errata/abi-4.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 security/landlock/errata/abi-4.h

diff --git a/security/landlock/errata/abi-4.h b/security/landlock/errata/abi-4.h new file mode 100644 index 000000000000..c052ee54f89f --- /dev/null +++ b/security/landlock/errata/abi-4.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +/** + * DOC: erratum_1 + * + * Erratum 1: TCP socket identification + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * This fix addresses an issue where IPv4 and IPv6 stream sockets (e.g., SMC, + * MPTCP, or SCTP) were incorrectly restricted by TCP access rights during + * :manpage:`bind(2)` and :manpage:`connect(2)` operations. This change ensures + * that only TCP sockets are subject to TCP access rights, allowing other + * protocols to operate without unnecessary restrictions. + */ +LANDLOCK_ERRATUM(1)