CONFIG_DEBUG_STRICT_USER_COPY_CHECKS: Strict user copy size checks

General informations

The Linux kernel configuration item CONFIG_DEBUG_STRICT_USER_COPY_CHECKS has multiple definitions:

Strict user copy size checks found in lib/Kconfig.debug

The configuration item CONFIG_DEBUG_STRICT_USER_COPY_CHECKS:

• prompt: Strict user copy size checks
• type: bool
• depends on: ( CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS ) && ( CONFIG_DEBUG_KERNEL && ! CONFIG_TRACE_BRANCH_PROFILING )
• defined in lib/Kconfig.debug
• found in Linux kernels: 3.10–3.19, 4.0–4.7

Help text

Enabling this option turns a certain set of sanity checks for user copy operations into compile time failures.

The copy_from_user() etc checks are there to help test if there are sufficient security checks on the length argument of the copy operation, by having gcc prove that the argument is within bounds.

If unsure, say N.

Strict user copy size checks found in arch/s390/Kconfig.debug

The configuration item CONFIG_DEBUG_STRICT_USER_COPY_CHECKS:

• prompt: Strict user copy size checks
• type: bool
• depends on: (none)
• defined in arch/s390/Kconfig.debug
• found in Linux kernels: 2.6.34–2.6.39, 3.0–3.9

Help text

Enabling this option turns a certain set of sanity checks for user copy operations into compile time warnings.

The copy_from_user() etc checks are there to help test if there are sufficient security checks on the length argument of the copy operation, by having gcc prove that the argument is within bounds.

If unsure, or if you run an older (pre 4.4) gcc, say N.

Strict copy size checks found in arch/x86/Kconfig.debug

The configuration item CONFIG_DEBUG_STRICT_USER_COPY_CHECKS:

• prompt: Strict copy size checks
• type: bool
• depends on: CONFIG_DEBUG_KERNEL && ! CONFIG_TRACE_BRANCH_PROFILING
• defined in arch/x86/Kconfig.debug
• found in Linux kernels: 2.6.33–2.6.39, 3.0–3.9

Help text

Enabling this option turns a certain set of sanity checks for user copy operations into compile time failures.

The copy_from_user() etc checks are there to help test if there are sufficient security checks on the length argument of the copy operation, by having gcc prove that the argument is within bounds.

If unsure, or if you run an older (pre 4.4) gcc, say N.

Strict copy size checks found in arch/parisc/Kconfig.debug

The configuration item CONFIG_DEBUG_STRICT_USER_COPY_CHECKS:

• prompt: Strict copy size checks
• type: bool
• depends on: CONFIG_DEBUG_KERNEL && ! CONFIG_TRACE_BRANCH_PROFILING
• defined in arch/parisc/Kconfig.debug
• found in Linux kernels: 2.6.34–2.6.39, 3.0–3.9

Help text

Enabling this option turns a certain set of sanity checks for user copy operations into compile time failures.

The copy_from_user() etc checks are there to help test if there are sufficient security checks on the length argument of the copy operation, by having gcc prove that the argument is within bounds.

If unsure, or if you run an older (pre 4.4) gcc, say N.

Strict copy size checks found in arch/sparc/Kconfig.debug

The configuration item CONFIG_DEBUG_STRICT_USER_COPY_CHECKS:

• prompt: Strict copy size checks
• type: bool
• depends on: CONFIG_DEBUG_KERNEL && ! CONFIG_TRACE_BRANCH_PROFILING
• defined in arch/sparc/Kconfig.debug
• found in Linux kernels: 2.6.33–2.6.35

Help text

Enabling this option turns a certain set of sanity checks for user copy operations into compile time failures.

The copy_from_user() etc checks are there to help test if there are sufficient security checks on the length argument of the copy operation, by having gcc prove that the argument is within bounds.

If unsure, or if you run an older (pre 4.4) gcc, say N.

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)

Automatic links from Google (and ads)

Custom Search

Popular queries: