CONFIG_SECURITY_SAFESETID: Gate setid transitions to limit CAP_SET{U/G}ID capabilities

General informations

The Linux kernel configuration item CONFIG_SECURITY_SAFESETID:

• prompt: Gate setid transitions to limit CAP_SET{U/G}ID capabilities
• type: bool
• depends on: CONFIG_SECURITY
• defined in security/safesetid/Kconfig
• found in Linux kernels: 5.1–5.19, 6.0–6.14, 6.15-rc+HEAD

Help text

SafeSetID is an LSM module that 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.

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The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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