CONFIG_MITIGATION_MMIO_STALE_DATA: Mitigate MMIO Stale Data hardware bug

General informations

The Linux kernel configuration item CONFIG_MITIGATION_MMIO_STALE_DATA:

• prompt: Mitigate MMIO Stale Data hardware bug
• type: bool
• depends on: CONFIG_CPU_SUP_INTEL
• defined in arch/x86/Kconfig
• found in Linux kernels: 6.12–6.13, 6.14-rc+HEAD

Help text

Enable mitigation for MMIO Stale Data hardware bugs. Processor MMIO Stale Data Vulnerabilities are a class of memory-mapped I/O (MMIO) vulnerabilities that can expose data. The vulnerabilities require the attacker to have access to MMIO. See also Documentation/admin-guide/hw-vuln/processor_mmio_stale_data.rst

Hardware

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The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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