Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
20 lines
855 B
C
20 lines
855 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/**
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* DOC: erratum_2
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*
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* Erratum 2: Scoped signal handling
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*
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* This fix addresses an issue where signal scoping was overly restrictive,
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* preventing sandboxed threads from signaling other threads within the same
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* process if they belonged to different domains. Because threads are not
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* security boundaries, user space might assume that all threads within the same
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* process can send signals between themselves (see :manpage:`nptl(7)` and
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* :manpage:`libpsx(3)`). Consistent with :manpage:`ptrace(2)` behavior, direct
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* interaction between threads of the same process should always be allowed.
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* This change ensures that any thread is allowed to send signals to any other
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* thread within the same process, regardless of their domain.
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*/
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LANDLOCK_ERRATUM(2)
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