CONFIG_REFCOUNT_FULL: Perform full reference count validation at the expense of speed

General informations

The Linux kernel configuration item CONFIG_REFCOUNT_FULL:

• prompt: Perform full reference count validation at the expense of speed
• type: bool
• depends on: (none)
• defined in arch/Kconfig
• found in Linux kernels: 4.13–4.20, 5.0–5.4

Help text

Enabling this switches the refcounting infrastructure from a fast unchecked atomic_t implementation to a fully state checked implementation, which can be (slightly) slower but provides protections against various use-after-free conditions that can be used in security flaw exploits.

Hardware

LKDDb

Raw data from LKDDb:

• (none)

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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