CONFIG_KMALLOC_PARTITION_RANDOM: Randomize slab caches for normal kmalloc

General informations

The Linux kernel configuration item CONFIG_KMALLOC_PARTITION_RANDOM:

• prompt: Randomize slab caches for normal kmalloc
• type: bool
• depends on: (none)
• defined in mm/Kconfig
• found in Linux kernels: 7.2-rc+HEAD

Help text

Randomly pick a slab cache based on code address and a per-boot random seed.

This makes it harder for attackers to predict object co-location. The placement is random: while attackers don't know which kmalloc cache an object will be allocated from, they might circumvent the randomization by retrying attacks across multiple machines until the target objects are co-located.

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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