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The Linux kernel configuration item CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
has multiple definitions:
lib/Kconfig.debug
The configuration item CONFIG_DEBUG_STRICT_USER_COPY_CHECKS:
( CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS ) && ( CONFIG_DEBUG_KERNEL && ! CONFIG_TRACE_BRANCH_PROFILING )
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.
arch/s390/Kconfig.debug
The configuration item CONFIG_DEBUG_STRICT_USER_COPY_CHECKS:
(none)
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.
arch/x86/Kconfig.debug
The configuration item CONFIG_DEBUG_STRICT_USER_COPY_CHECKS:
CONFIG_DEBUG_KERNEL && ! CONFIG_TRACE_BRANCH_PROFILING
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.
arch/parisc/Kconfig.debug
The configuration item CONFIG_DEBUG_STRICT_USER_COPY_CHECKS:
CONFIG_DEBUG_KERNEL && ! CONFIG_TRACE_BRANCH_PROFILING
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.
arch/sparc/Kconfig.debug
The configuration item CONFIG_DEBUG_STRICT_USER_COPY_CHECKS:
CONFIG_DEBUG_KERNEL && ! CONFIG_TRACE_BRANCH_PROFILING
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.
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