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CONFIG_KASAN_OUTLINE: Outline instrumentation

General informations

The Linux kernel configuration item CONFIG_KASAN_OUTLINE:

• prompt: Outline instrumentation
• type: bool
• depends on: (none)
• defined in lib/Kconfig.kasan
• found in Linux kernels: 4.0–4.19, 4.20-rc+HEAD

Help text

Before every memory access compiler insert function call __asan_load*/__asan_store*. These functions performs check of shadow memory. This is slower than inline instrumentation, however it doesn't bloat size of kernel's .text section so much as inline does.

Hardware

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The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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