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/* SPDX-License-Identifier: GPL-2.0-only */
/**
* DOC: erratum_2
*
* Erratum 2: Scoped signal handling
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* This fix addresses an issue where signal scoping was overly restrictive,
* preventing sandboxed threads from signaling other threads within the same
* process if they belonged to different domains. Because threads are not
* security boundaries, user space might assume that any thread within the same
* process can send signals between themselves (see :manpage:`nptl(7)` and
* :manpage:`libpsx(3)`). Consistent with :manpage:`ptrace(2)` behavior, direct
* interaction between threads of the same process should always be allowed.
* This change ensures that any thread is allowed to send signals to any other
* thread within the same process, regardless of their domain.
*/
LANDLOCK_ERRATUM(2)
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