diff options
Diffstat (limited to 'mm/kasan/generic.c')
| -rw-r--r-- | mm/kasan/generic.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/mm/kasan/generic.c b/mm/kasan/generic.c index d54e89f8c3e7..b413c46b3e04 100644 --- a/mm/kasan/generic.c +++ b/mm/kasan/generic.c @@ -37,6 +37,17 @@ #include "../slab.h" /* + * Initialize Generic KASAN and enable runtime checks. + * This should be called from arch kasan_init() once shadow memory is ready. + */ +void __init kasan_init_generic(void) +{ + kasan_enable(); + + pr_info("KernelAddressSanitizer initialized (generic)\n"); +} + +/* * All functions below always inlined so compiler could * perform better optimizations in each of __asan_loadX/__assn_storeX * depending on memory access size X. @@ -165,7 +176,7 @@ static __always_inline bool check_region_inline(const void *addr, size_t size, bool write, unsigned long ret_ip) { - if (!kasan_arch_is_ready()) + if (!kasan_enabled()) return true; if (unlikely(size == 0)) @@ -193,7 +204,7 @@ bool kasan_byte_accessible(const void *addr) { s8 shadow_byte; - if (!kasan_arch_is_ready()) + if (!kasan_enabled()) return true; shadow_byte = READ_ONCE(*(s8 *)kasan_mem_to_shadow(addr)); @@ -495,7 +506,7 @@ static void release_alloc_meta(struct kasan_alloc_meta *meta) static void release_free_meta(const void *object, struct kasan_free_meta *meta) { - if (!kasan_arch_is_ready()) + if (!kasan_enabled()) return; /* Check if free meta is valid. */ @@ -562,7 +573,7 @@ void kasan_save_alloc_info(struct kmem_cache *cache, void *object, gfp_t flags) kasan_save_track(&alloc_meta->alloc_track, flags); } -void kasan_save_free_info(struct kmem_cache *cache, void *object) +void __kasan_save_free_info(struct kmem_cache *cache, void *object) { struct kasan_free_meta *free_meta; |