CONFIG_KMSAN_CHECK_PARAM_RETVAL: Check for uninitialized values passed to and returned from functions

General informations

The Linux kernel configuration item CONFIG_KMSAN_CHECK_PARAM_RETVAL:

• prompt: Check for uninitialized values passed to and returned from functions
• type: bool
• depends on: CONFIG_HAVE_KMSAN_PARAM_RETVAL
• defined in lib/Kconfig.kmsan
• found in Linux kernels: 6.1–6.8, 6.9-rc+HEAD

Help text

If the compiler supports -fsanitize-memory-param-retval, KMSAN will eagerly check every function parameter passed by value and every function return value.

Disabling KMSAN_CHECK_PARAM_RETVAL will result in tracking shadow for function parameters and return values across function borders. This is a more relaxed mode, but it generates more instrumentation code and may potentially report errors in corner cases when non-instrumented functions call instrumented ones.

Hardware

LKDDb

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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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