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0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #ifndef __MM_KASAN_KASAN_H
0003 #define __MM_KASAN_KASAN_H
0004 
0005 #include <linux/kasan.h>
0006 #include <linux/kasan-tags.h>
0007 #include <linux/kfence.h>
0008 #include <linux/stackdepot.h>
0009 
0010 #ifdef CONFIG_KASAN_HW_TAGS
0011 
0012 #include <linux/static_key.h>
0013 #include "../slab.h"
0014 
0015 DECLARE_STATIC_KEY_TRUE(kasan_flag_vmalloc);
0016 DECLARE_STATIC_KEY_TRUE(kasan_flag_stacktrace);
0017 
0018 enum kasan_mode {
0019     KASAN_MODE_SYNC,
0020     KASAN_MODE_ASYNC,
0021     KASAN_MODE_ASYMM,
0022 };
0023 
0024 extern enum kasan_mode kasan_mode __ro_after_init;
0025 
0026 static inline bool kasan_vmalloc_enabled(void)
0027 {
0028     return static_branch_likely(&kasan_flag_vmalloc);
0029 }
0030 
0031 static inline bool kasan_stack_collection_enabled(void)
0032 {
0033     return static_branch_unlikely(&kasan_flag_stacktrace);
0034 }
0035 
0036 static inline bool kasan_async_fault_possible(void)
0037 {
0038     return kasan_mode == KASAN_MODE_ASYNC || kasan_mode == KASAN_MODE_ASYMM;
0039 }
0040 
0041 static inline bool kasan_sync_fault_possible(void)
0042 {
0043     return kasan_mode == KASAN_MODE_SYNC || kasan_mode == KASAN_MODE_ASYMM;
0044 }
0045 
0046 #else
0047 
0048 static inline bool kasan_stack_collection_enabled(void)
0049 {
0050     return true;
0051 }
0052 
0053 static inline bool kasan_async_fault_possible(void)
0054 {
0055     return false;
0056 }
0057 
0058 static inline bool kasan_sync_fault_possible(void)
0059 {
0060     return true;
0061 }
0062 
0063 #endif
0064 
0065 #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)
0066 #define KASAN_GRANULE_SIZE  (1UL << KASAN_SHADOW_SCALE_SHIFT)
0067 #else
0068 #include <asm/mte-kasan.h>
0069 #define KASAN_GRANULE_SIZE  MTE_GRANULE_SIZE
0070 #endif
0071 
0072 #define KASAN_GRANULE_MASK  (KASAN_GRANULE_SIZE - 1)
0073 
0074 #define KASAN_MEMORY_PER_SHADOW_PAGE    (KASAN_GRANULE_SIZE << PAGE_SHIFT)
0075 
0076 #ifdef CONFIG_KASAN_GENERIC
0077 #define KASAN_PAGE_FREE     0xFF  /* freed page */
0078 #define KASAN_PAGE_REDZONE  0xFE  /* redzone for kmalloc_large allocation */
0079 #define KASAN_SLAB_REDZONE  0xFC  /* redzone for slab object */
0080 #define KASAN_SLAB_FREE     0xFB  /* freed slab object */
0081 #define KASAN_VMALLOC_INVALID   0xF8  /* inaccessible space in vmap area */
0082 #else
0083 #define KASAN_PAGE_FREE     KASAN_TAG_INVALID
0084 #define KASAN_PAGE_REDZONE  KASAN_TAG_INVALID
0085 #define KASAN_SLAB_REDZONE  KASAN_TAG_INVALID
0086 #define KASAN_SLAB_FREE     KASAN_TAG_INVALID
0087 #define KASAN_VMALLOC_INVALID   KASAN_TAG_INVALID /* only used for SW_TAGS */
0088 #endif
0089 
0090 #ifdef CONFIG_KASAN_GENERIC
0091 
0092 #define KASAN_SLAB_FREETRACK    0xFA  /* freed slab object with free track */
0093 #define KASAN_GLOBAL_REDZONE    0xF9  /* redzone for global variable */
0094 
0095 /* Stack redzone shadow values. Compiler ABI, do not change. */
0096 #define KASAN_STACK_LEFT    0xF1
0097 #define KASAN_STACK_MID     0xF2
0098 #define KASAN_STACK_RIGHT   0xF3
0099 #define KASAN_STACK_PARTIAL 0xF4
0100 
0101 /* alloca redzone shadow values. */
0102 #define KASAN_ALLOCA_LEFT   0xCA
0103 #define KASAN_ALLOCA_RIGHT  0xCB
0104 
0105 /* alloca redzone size. Compiler ABI, do not change. */
0106 #define KASAN_ALLOCA_REDZONE_SIZE   32
0107 
0108 /* Stack frame marker. Compiler ABI, do not change. */
0109 #define KASAN_CURRENT_STACK_FRAME_MAGIC 0x41B58AB3
0110 
0111 /* Dummy value to avoid breaking randconfig/all*config builds. */
0112 #ifndef KASAN_ABI_VERSION
0113 #define KASAN_ABI_VERSION 1
0114 #endif
0115 
0116 #endif /* CONFIG_KASAN_GENERIC */
0117 
0118 /* Metadata layout customization. */
0119 #define META_BYTES_PER_BLOCK 1
0120 #define META_BLOCKS_PER_ROW 16
0121 #define META_BYTES_PER_ROW (META_BLOCKS_PER_ROW * META_BYTES_PER_BLOCK)
0122 #define META_MEM_BYTES_PER_ROW (META_BYTES_PER_ROW * KASAN_GRANULE_SIZE)
0123 #define META_ROWS_AROUND_ADDR 2
0124 
0125 enum kasan_report_type {
0126     KASAN_REPORT_ACCESS,
0127     KASAN_REPORT_INVALID_FREE,
0128     KASAN_REPORT_DOUBLE_FREE,
0129 };
0130 
0131 struct kasan_report_info {
0132     enum kasan_report_type type;
0133     void *access_addr;
0134     void *first_bad_addr;
0135     size_t access_size;
0136     bool is_write;
0137     unsigned long ip;
0138 };
0139 
0140 /* Do not change the struct layout: compiler ABI. */
0141 struct kasan_source_location {
0142     const char *filename;
0143     int line_no;
0144     int column_no;
0145 };
0146 
0147 /* Do not change the struct layout: compiler ABI. */
0148 struct kasan_global {
0149     const void *beg;        /* Address of the beginning of the global variable. */
0150     size_t size;            /* Size of the global variable. */
0151     size_t size_with_redzone;   /* Size of the variable + size of the redzone. 32 bytes aligned. */
0152     const void *name;
0153     const void *module_name;    /* Name of the module where the global variable is declared. */
0154     unsigned long has_dynamic_init; /* This is needed for C++. */
0155 #if KASAN_ABI_VERSION >= 4
0156     struct kasan_source_location *location;
0157 #endif
0158 #if KASAN_ABI_VERSION >= 5
0159     char *odr_indicator;
0160 #endif
0161 };
0162 
0163 /* Structures for keeping alloc and free tracks. */
0164 
0165 #define KASAN_STACK_DEPTH 64
0166 
0167 struct kasan_track {
0168     u32 pid;
0169     depot_stack_handle_t stack;
0170 };
0171 
0172 #if defined(CONFIG_KASAN_TAGS_IDENTIFY) && defined(CONFIG_KASAN_SW_TAGS)
0173 #define KASAN_NR_FREE_STACKS 5
0174 #else
0175 #define KASAN_NR_FREE_STACKS 1
0176 #endif
0177 
0178 struct kasan_alloc_meta {
0179     struct kasan_track alloc_track;
0180     /* Generic mode stores free track in kasan_free_meta. */
0181 #ifdef CONFIG_KASAN_GENERIC
0182     depot_stack_handle_t aux_stack[2];
0183 #else
0184     struct kasan_track free_track[KASAN_NR_FREE_STACKS];
0185 #endif
0186 #ifdef CONFIG_KASAN_TAGS_IDENTIFY
0187     u8 free_pointer_tag[KASAN_NR_FREE_STACKS];
0188     u8 free_track_idx;
0189 #endif
0190 };
0191 
0192 struct qlist_node {
0193     struct qlist_node *next;
0194 };
0195 
0196 /*
0197  * Free meta is stored either in the object itself or in the redzone after the
0198  * object. In the former case, free meta offset is 0. In the latter case, the
0199  * offset is between 0 and INT_MAX. INT_MAX marks that free meta is not present.
0200  */
0201 #define KASAN_NO_FREE_META INT_MAX
0202 
0203 /*
0204  * Free meta is only used by Generic mode while the object is in quarantine.
0205  * After that, slab allocator stores the freelist pointer in the object.
0206  */
0207 struct kasan_free_meta {
0208 #ifdef CONFIG_KASAN_GENERIC
0209     struct qlist_node quarantine_link;
0210     struct kasan_track free_track;
0211 #endif
0212 };
0213 
0214 #if IS_ENABLED(CONFIG_KASAN_KUNIT_TEST)
0215 /* Used in KUnit-compatible KASAN tests. */
0216 struct kunit_kasan_status {
0217     bool report_found;
0218     bool sync_fault;
0219 };
0220 #endif
0221 
0222 struct kasan_alloc_meta *kasan_get_alloc_meta(struct kmem_cache *cache,
0223                         const void *object);
0224 #ifdef CONFIG_KASAN_GENERIC
0225 struct kasan_free_meta *kasan_get_free_meta(struct kmem_cache *cache,
0226                         const void *object);
0227 #endif
0228 
0229 #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)
0230 
0231 static inline const void *kasan_shadow_to_mem(const void *shadow_addr)
0232 {
0233     return (void *)(((unsigned long)shadow_addr - KASAN_SHADOW_OFFSET)
0234         << KASAN_SHADOW_SCALE_SHIFT);
0235 }
0236 
0237 static inline bool addr_has_metadata(const void *addr)
0238 {
0239     return (kasan_reset_tag(addr) >=
0240         kasan_shadow_to_mem((void *)KASAN_SHADOW_START));
0241 }
0242 
0243 /**
0244  * kasan_check_range - Check memory region, and report if invalid access.
0245  * @addr: the accessed address
0246  * @size: the accessed size
0247  * @write: true if access is a write access
0248  * @ret_ip: return address
0249  * @return: true if access was valid, false if invalid
0250  */
0251 bool kasan_check_range(unsigned long addr, size_t size, bool write,
0252                 unsigned long ret_ip);
0253 
0254 #else /* CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS */
0255 
0256 static inline bool addr_has_metadata(const void *addr)
0257 {
0258     return (is_vmalloc_addr(addr) || virt_addr_valid(addr));
0259 }
0260 
0261 #endif /* CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS */
0262 
0263 #if defined(CONFIG_KASAN_SW_TAGS) || defined(CONFIG_KASAN_HW_TAGS)
0264 void kasan_print_tags(u8 addr_tag, const void *addr);
0265 #else
0266 static inline void kasan_print_tags(u8 addr_tag, const void *addr) { }
0267 #endif
0268 
0269 void *kasan_find_first_bad_addr(void *addr, size_t size);
0270 const char *kasan_get_bug_type(struct kasan_report_info *info);
0271 void kasan_metadata_fetch_row(char *buffer, void *row);
0272 
0273 #if defined(CONFIG_KASAN_STACK)
0274 void kasan_print_address_stack_frame(const void *addr);
0275 #else
0276 static inline void kasan_print_address_stack_frame(const void *addr) { }
0277 #endif
0278 
0279 bool kasan_report(unsigned long addr, size_t size,
0280         bool is_write, unsigned long ip);
0281 void kasan_report_invalid_free(void *object, unsigned long ip, enum kasan_report_type type);
0282 
0283 struct page *kasan_addr_to_page(const void *addr);
0284 struct slab *kasan_addr_to_slab(const void *addr);
0285 
0286 depot_stack_handle_t kasan_save_stack(gfp_t flags, bool can_alloc);
0287 void kasan_set_track(struct kasan_track *track, gfp_t flags);
0288 void kasan_set_free_info(struct kmem_cache *cache, void *object, u8 tag);
0289 struct kasan_track *kasan_get_free_track(struct kmem_cache *cache,
0290                 void *object, u8 tag);
0291 
0292 #if defined(CONFIG_KASAN_GENERIC) && \
0293     (defined(CONFIG_SLAB) || defined(CONFIG_SLUB))
0294 bool kasan_quarantine_put(struct kmem_cache *cache, void *object);
0295 void kasan_quarantine_reduce(void);
0296 void kasan_quarantine_remove_cache(struct kmem_cache *cache);
0297 #else
0298 static inline bool kasan_quarantine_put(struct kmem_cache *cache, void *object) { return false; }
0299 static inline void kasan_quarantine_reduce(void) { }
0300 static inline void kasan_quarantine_remove_cache(struct kmem_cache *cache) { }
0301 #endif
0302 
0303 #ifndef arch_kasan_set_tag
0304 static inline const void *arch_kasan_set_tag(const void *addr, u8 tag)
0305 {
0306     return addr;
0307 }
0308 #endif
0309 #ifndef arch_kasan_get_tag
0310 #define arch_kasan_get_tag(addr)    0
0311 #endif
0312 
0313 #define set_tag(addr, tag)  ((void *)arch_kasan_set_tag((addr), (tag)))
0314 #define get_tag(addr)       arch_kasan_get_tag(addr)
0315 
0316 #ifdef CONFIG_KASAN_HW_TAGS
0317 
0318 #ifndef arch_enable_tagging_sync
0319 #define arch_enable_tagging_sync()
0320 #endif
0321 #ifndef arch_enable_tagging_async
0322 #define arch_enable_tagging_async()
0323 #endif
0324 #ifndef arch_enable_tagging_asymm
0325 #define arch_enable_tagging_asymm()
0326 #endif
0327 #ifndef arch_force_async_tag_fault
0328 #define arch_force_async_tag_fault()
0329 #endif
0330 #ifndef arch_get_random_tag
0331 #define arch_get_random_tag()   (0xFF)
0332 #endif
0333 #ifndef arch_get_mem_tag
0334 #define arch_get_mem_tag(addr)  (0xFF)
0335 #endif
0336 #ifndef arch_set_mem_tag_range
0337 #define arch_set_mem_tag_range(addr, size, tag, init) ((void *)(addr))
0338 #endif
0339 
0340 #define hw_enable_tagging_sync()        arch_enable_tagging_sync()
0341 #define hw_enable_tagging_async()       arch_enable_tagging_async()
0342 #define hw_enable_tagging_asymm()       arch_enable_tagging_asymm()
0343 #define hw_force_async_tag_fault()      arch_force_async_tag_fault()
0344 #define hw_get_random_tag()         arch_get_random_tag()
0345 #define hw_get_mem_tag(addr)            arch_get_mem_tag(addr)
0346 #define hw_set_mem_tag_range(addr, size, tag, init) \
0347             arch_set_mem_tag_range((addr), (size), (tag), (init))
0348 
0349 void kasan_enable_tagging(void);
0350 
0351 #else /* CONFIG_KASAN_HW_TAGS */
0352 
0353 #define hw_enable_tagging_sync()
0354 #define hw_enable_tagging_async()
0355 #define hw_enable_tagging_asymm()
0356 
0357 static inline void kasan_enable_tagging(void) { }
0358 
0359 #endif /* CONFIG_KASAN_HW_TAGS */
0360 
0361 #if defined(CONFIG_KASAN_HW_TAGS) && IS_ENABLED(CONFIG_KASAN_KUNIT_TEST)
0362 
0363 void kasan_force_async_fault(void);
0364 
0365 #else /* CONFIG_KASAN_HW_TAGS && CONFIG_KASAN_KUNIT_TEST */
0366 
0367 static inline void kasan_force_async_fault(void) { }
0368 
0369 #endif /* CONFIG_KASAN_HW_TAGS && CONFIG_KASAN_KUNIT_TEST */
0370 
0371 #ifdef CONFIG_KASAN_SW_TAGS
0372 u8 kasan_random_tag(void);
0373 #elif defined(CONFIG_KASAN_HW_TAGS)
0374 static inline u8 kasan_random_tag(void) { return hw_get_random_tag(); }
0375 #else
0376 static inline u8 kasan_random_tag(void) { return 0; }
0377 #endif
0378 
0379 #ifdef CONFIG_KASAN_HW_TAGS
0380 
0381 static inline void kasan_poison(const void *addr, size_t size, u8 value, bool init)
0382 {
0383     addr = kasan_reset_tag(addr);
0384 
0385     /* Skip KFENCE memory if called explicitly outside of sl*b. */
0386     if (is_kfence_address(addr))
0387         return;
0388 
0389     if (WARN_ON((unsigned long)addr & KASAN_GRANULE_MASK))
0390         return;
0391     if (WARN_ON(size & KASAN_GRANULE_MASK))
0392         return;
0393 
0394     hw_set_mem_tag_range((void *)addr, size, value, init);
0395 }
0396 
0397 static inline void kasan_unpoison(const void *addr, size_t size, bool init)
0398 {
0399     u8 tag = get_tag(addr);
0400 
0401     addr = kasan_reset_tag(addr);
0402 
0403     /* Skip KFENCE memory if called explicitly outside of sl*b. */
0404     if (is_kfence_address(addr))
0405         return;
0406 
0407     if (WARN_ON((unsigned long)addr & KASAN_GRANULE_MASK))
0408         return;
0409     /*
0410      * Explicitly initialize the memory with the precise object size to
0411      * avoid overwriting the slab redzone. This disables initialization in
0412      * the arch code and may thus lead to performance penalty. This penalty
0413      * does not affect production builds, as slab redzones are not enabled
0414      * there.
0415      */
0416     if (__slub_debug_enabled() &&
0417         init && ((unsigned long)size & KASAN_GRANULE_MASK)) {
0418         init = false;
0419         memzero_explicit((void *)addr, size);
0420     }
0421     size = round_up(size, KASAN_GRANULE_SIZE);
0422 
0423     hw_set_mem_tag_range((void *)addr, size, tag, init);
0424 }
0425 
0426 static inline bool kasan_byte_accessible(const void *addr)
0427 {
0428     u8 ptr_tag = get_tag(addr);
0429     u8 mem_tag = hw_get_mem_tag((void *)addr);
0430 
0431     return ptr_tag == KASAN_TAG_KERNEL || ptr_tag == mem_tag;
0432 }
0433 
0434 #else /* CONFIG_KASAN_HW_TAGS */
0435 
0436 /**
0437  * kasan_poison - mark the memory range as inaccessible
0438  * @addr - range start address, must be aligned to KASAN_GRANULE_SIZE
0439  * @size - range size, must be aligned to KASAN_GRANULE_SIZE
0440  * @value - value that's written to metadata for the range
0441  * @init - whether to initialize the memory range (only for hardware tag-based)
0442  *
0443  * The size gets aligned to KASAN_GRANULE_SIZE before marking the range.
0444  */
0445 void kasan_poison(const void *addr, size_t size, u8 value, bool init);
0446 
0447 /**
0448  * kasan_unpoison - mark the memory range as accessible
0449  * @addr - range start address, must be aligned to KASAN_GRANULE_SIZE
0450  * @size - range size, can be unaligned
0451  * @init - whether to initialize the memory range (only for hardware tag-based)
0452  *
0453  * For the tag-based modes, the @size gets aligned to KASAN_GRANULE_SIZE before
0454  * marking the range.
0455  * For the generic mode, the last granule of the memory range gets partially
0456  * unpoisoned based on the @size.
0457  */
0458 void kasan_unpoison(const void *addr, size_t size, bool init);
0459 
0460 bool kasan_byte_accessible(const void *addr);
0461 
0462 #endif /* CONFIG_KASAN_HW_TAGS */
0463 
0464 #ifdef CONFIG_KASAN_GENERIC
0465 
0466 /**
0467  * kasan_poison_last_granule - mark the last granule of the memory range as
0468  * inaccessible
0469  * @addr - range start address, must be aligned to KASAN_GRANULE_SIZE
0470  * @size - range size
0471  *
0472  * This function is only available for the generic mode, as it's the only mode
0473  * that has partially poisoned memory granules.
0474  */
0475 void kasan_poison_last_granule(const void *address, size_t size);
0476 
0477 #else /* CONFIG_KASAN_GENERIC */
0478 
0479 static inline void kasan_poison_last_granule(const void *address, size_t size) { }
0480 
0481 #endif /* CONFIG_KASAN_GENERIC */
0482 
0483 #ifndef kasan_arch_is_ready
0484 static inline bool kasan_arch_is_ready(void)    { return true; }
0485 #elif !defined(CONFIG_KASAN_GENERIC) || !defined(CONFIG_KASAN_OUTLINE)
0486 #error kasan_arch_is_ready only works in KASAN generic outline mode!
0487 #endif
0488 
0489 #if IS_ENABLED(CONFIG_KASAN_KUNIT_TEST) || IS_ENABLED(CONFIG_KASAN_MODULE_TEST)
0490 
0491 bool kasan_save_enable_multi_shot(void);
0492 void kasan_restore_multi_shot(bool enabled);
0493 
0494 #endif
0495 
0496 /*
0497  * Exported functions for interfaces called from assembly or from generated
0498  * code. Declared here to avoid warnings about missing declarations.
0499  */
0500 
0501 asmlinkage void kasan_unpoison_task_stack_below(const void *watermark);
0502 void __asan_register_globals(struct kasan_global *globals, size_t size);
0503 void __asan_unregister_globals(struct kasan_global *globals, size_t size);
0504 void __asan_handle_no_return(void);
0505 void __asan_alloca_poison(unsigned long addr, size_t size);
0506 void __asan_allocas_unpoison(const void *stack_top, const void *stack_bottom);
0507 
0508 void __asan_load1(unsigned long addr);
0509 void __asan_store1(unsigned long addr);
0510 void __asan_load2(unsigned long addr);
0511 void __asan_store2(unsigned long addr);
0512 void __asan_load4(unsigned long addr);
0513 void __asan_store4(unsigned long addr);
0514 void __asan_load8(unsigned long addr);
0515 void __asan_store8(unsigned long addr);
0516 void __asan_load16(unsigned long addr);
0517 void __asan_store16(unsigned long addr);
0518 void __asan_loadN(unsigned long addr, size_t size);
0519 void __asan_storeN(unsigned long addr, size_t size);
0520 
0521 void __asan_load1_noabort(unsigned long addr);
0522 void __asan_store1_noabort(unsigned long addr);
0523 void __asan_load2_noabort(unsigned long addr);
0524 void __asan_store2_noabort(unsigned long addr);
0525 void __asan_load4_noabort(unsigned long addr);
0526 void __asan_store4_noabort(unsigned long addr);
0527 void __asan_load8_noabort(unsigned long addr);
0528 void __asan_store8_noabort(unsigned long addr);
0529 void __asan_load16_noabort(unsigned long addr);
0530 void __asan_store16_noabort(unsigned long addr);
0531 void __asan_loadN_noabort(unsigned long addr, size_t size);
0532 void __asan_storeN_noabort(unsigned long addr, size_t size);
0533 
0534 void __asan_report_load1_noabort(unsigned long addr);
0535 void __asan_report_store1_noabort(unsigned long addr);
0536 void __asan_report_load2_noabort(unsigned long addr);
0537 void __asan_report_store2_noabort(unsigned long addr);
0538 void __asan_report_load4_noabort(unsigned long addr);
0539 void __asan_report_store4_noabort(unsigned long addr);
0540 void __asan_report_load8_noabort(unsigned long addr);
0541 void __asan_report_store8_noabort(unsigned long addr);
0542 void __asan_report_load16_noabort(unsigned long addr);
0543 void __asan_report_store16_noabort(unsigned long addr);
0544 void __asan_report_load_n_noabort(unsigned long addr, size_t size);
0545 void __asan_report_store_n_noabort(unsigned long addr, size_t size);
0546 
0547 void __asan_set_shadow_00(const void *addr, size_t size);
0548 void __asan_set_shadow_f1(const void *addr, size_t size);
0549 void __asan_set_shadow_f2(const void *addr, size_t size);
0550 void __asan_set_shadow_f3(const void *addr, size_t size);
0551 void __asan_set_shadow_f5(const void *addr, size_t size);
0552 void __asan_set_shadow_f8(const void *addr, size_t size);
0553 
0554 void __hwasan_load1_noabort(unsigned long addr);
0555 void __hwasan_store1_noabort(unsigned long addr);
0556 void __hwasan_load2_noabort(unsigned long addr);
0557 void __hwasan_store2_noabort(unsigned long addr);
0558 void __hwasan_load4_noabort(unsigned long addr);
0559 void __hwasan_store4_noabort(unsigned long addr);
0560 void __hwasan_load8_noabort(unsigned long addr);
0561 void __hwasan_store8_noabort(unsigned long addr);
0562 void __hwasan_load16_noabort(unsigned long addr);
0563 void __hwasan_store16_noabort(unsigned long addr);
0564 void __hwasan_loadN_noabort(unsigned long addr, size_t size);
0565 void __hwasan_storeN_noabort(unsigned long addr, size_t size);
0566 
0567 void __hwasan_tag_memory(unsigned long addr, u8 tag, unsigned long size);
0568 
0569 #endif /* __MM_KASAN_KASAN_H */
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