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-rw-r--r--lib/Kconfig.debug25
1 files changed, 23 insertions, 2 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 28be08c09bab..566cf2bc08ea 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1192,7 +1192,7 @@ config MEMORY_NOTIFIER_ERROR_INJECT
bash: echo: write error: Cannot allocate memory
To compile this code as a module, choose M here: the module will
- be called pSeries-reconfig-notifier-error-inject.
+ be called memory-notifier-error-inject.
If unsure, say N.
@@ -1209,7 +1209,7 @@ config OF_RECONFIG_NOTIFIER_ERROR_INJECT
notified, write the error code to "actions/<notifier event>/error".
To compile this code as a module, choose M here: the module will
- be called memory-notifier-error-inject.
+ be called of-reconfig-notifier-error-inject.
If unsure, say N.
@@ -1292,6 +1292,24 @@ config LATENCYTOP
Enable this option if you want to use the LatencyTOP tool
to find out which userspace is blocking on what kernel operations.
+config ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
+ bool
+
+config DEBUG_STRICT_USER_COPY_CHECKS
+ bool "Strict user copy size checks"
+ depends on ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
+ depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
+ help
+ 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.
+
source mm/Kconfig.debug
source kernel/trace/Kconfig
@@ -1463,5 +1481,8 @@ source "lib/Kconfig.kgdb"
source "lib/Kconfig.kmemcheck"
+config TEST_STRING_HELPERS
+ tristate "Test functions located in the string_helpers module at runtime"
+
config TEST_KSTRTOX
tristate "Test kstrto*() family of functions at runtime"