summaryrefslogtreecommitdiff
path: root/mm/kasan
diff options
context:
space:
mode:
Diffstat (limited to 'mm/kasan')
-rw-r--r--mm/kasan/generic.c19
-rw-r--r--mm/kasan/generic_report.c3
-rw-r--r--mm/kasan/kasan.h3
3 files changed, 0 insertions, 25 deletions
diff --git a/mm/kasan/generic.c b/mm/kasan/generic.c
index ccb6207276e3..504c79363a34 100644
--- a/mm/kasan/generic.c
+++ b/mm/kasan/generic.c
@@ -275,25 +275,6 @@ EXPORT_SYMBOL(__asan_storeN_noabort);
void __asan_handle_no_return(void) {}
EXPORT_SYMBOL(__asan_handle_no_return);
-/* Emitted by compiler to poison large objects when they go out of scope. */
-void __asan_poison_stack_memory(const void *addr, size_t size)
-{
- /*
- * Addr is KASAN_SHADOW_SCALE_SIZE-aligned and the object is surrounded
- * by redzones, so we simply round up size to simplify logic.
- */
- kasan_poison_shadow(addr, round_up(size, KASAN_SHADOW_SCALE_SIZE),
- KASAN_USE_AFTER_SCOPE);
-}
-EXPORT_SYMBOL(__asan_poison_stack_memory);
-
-/* Emitted by compiler to unpoison large objects when they go into scope. */
-void __asan_unpoison_stack_memory(const void *addr, size_t size)
-{
- kasan_unpoison_shadow(addr, size);
-}
-EXPORT_SYMBOL(__asan_unpoison_stack_memory);
-
/* Emitted by compiler to poison alloca()ed objects. */
void __asan_alloca_poison(unsigned long addr, size_t size)
{
diff --git a/mm/kasan/generic_report.c b/mm/kasan/generic_report.c
index 5e12035888f2..36c645939bc9 100644
--- a/mm/kasan/generic_report.c
+++ b/mm/kasan/generic_report.c
@@ -82,9 +82,6 @@ static const char *get_shadow_bug_type(struct kasan_access_info *info)
case KASAN_KMALLOC_FREE:
bug_type = "use-after-free";
break;
- case KASAN_USE_AFTER_SCOPE:
- bug_type = "use-after-scope";
- break;
case KASAN_ALLOCA_LEFT:
case KASAN_ALLOCA_RIGHT:
bug_type = "alloca-out-of-bounds";
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index ea51b2d898ec..3e0c11f7d7a1 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -34,7 +34,6 @@
#define KASAN_STACK_MID 0xF2
#define KASAN_STACK_RIGHT 0xF3
#define KASAN_STACK_PARTIAL 0xF4
-#define KASAN_USE_AFTER_SCOPE 0xF8
/*
* alloca redzone shadow values
@@ -187,8 +186,6 @@ void __asan_unregister_globals(struct kasan_global *globals, size_t size);
void __asan_loadN(unsigned long addr, size_t size);
void __asan_storeN(unsigned long addr, size_t size);
void __asan_handle_no_return(void);
-void __asan_poison_stack_memory(const void *addr, size_t size);
-void __asan_unpoison_stack_memory(const void *addr, size_t size);
void __asan_alloca_poison(unsigned long addr, size_t size);
void __asan_allocas_unpoison(const void *stack_top, const void *stack_bottom);