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SafeSetID gates the setid family of syscalls to restrict UID/GID
transitions from a given UID/GID to only those approved by a
system-wide whitelist. These restrictions also prohibit the given
UIDs/GIDs from obtaining auxiliary privileges associated with
CAP_SET{U/G}ID, such as allowing a user to set up user namespace UID
mappings. For now, only gating the set*uid family of syscalls is
supported, with support for set*gid coming in a future patch set.
Signed-off-by: Micah Morton <mortonm@chromium.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: James Morris <james.morris@microsoft.com>
8 lines
156 B
Makefile
8 lines
156 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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#
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# Makefile for the safesetid LSM.
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#
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obj-$(CONFIG_SECURITY_SAFESETID) := safesetid.o
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safesetid-y := lsm.o securityfs.o
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