1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __MM_KASAN_KASAN_H 3 #define __MM_KASAN_KASAN_H 4 5 #include <linux/atomic.h> 6 #include <linux/kasan.h> 7 #include <linux/kasan-tags.h> 8 #include <linux/kfence.h> 9 #include <linux/stackdepot.h> 10 11 #if defined(CONFIG_KASAN_SW_TAGS) || defined(CONFIG_KASAN_HW_TAGS) 12 13 #include <linux/static_key.h> 14 15 DECLARE_STATIC_KEY_TRUE(kasan_flag_stacktrace); 16 17 static inline bool kasan_stack_collection_enabled(void) 18 { 19 return static_branch_unlikely(&kasan_flag_stacktrace); 20 } 21 22 #else /* CONFIG_KASAN_SW_TAGS || CONFIG_KASAN_HW_TAGS */ 23 24 static inline bool kasan_stack_collection_enabled(void) 25 { 26 return true; 27 } 28 29 #endif /* CONFIG_KASAN_SW_TAGS || CONFIG_KASAN_HW_TAGS */ 30 31 #ifdef CONFIG_KASAN_HW_TAGS 32 33 #include "../slab.h" 34 35 DECLARE_STATIC_KEY_TRUE(kasan_flag_vmalloc); 36 37 enum kasan_mode { 38 KASAN_MODE_SYNC, 39 KASAN_MODE_ASYNC, 40 KASAN_MODE_ASYMM, 41 }; 42 43 extern enum kasan_mode kasan_mode __ro_after_init; 44 45 static inline bool kasan_vmalloc_enabled(void) 46 { 47 return static_branch_likely(&kasan_flag_vmalloc); 48 } 49 50 static inline bool kasan_async_fault_possible(void) 51 { 52 return kasan_mode == KASAN_MODE_ASYNC || kasan_mode == KASAN_MODE_ASYMM; 53 } 54 55 static inline bool kasan_sync_fault_possible(void) 56 { 57 return kasan_mode == KASAN_MODE_SYNC || kasan_mode == KASAN_MODE_ASYMM; 58 } 59 60 #else /* CONFIG_KASAN_HW_TAGS */ 61 62 static inline bool kasan_async_fault_possible(void) 63 { 64 return false; 65 } 66 67 static inline bool kasan_sync_fault_possible(void) 68 { 69 return true; 70 } 71 72 #endif /* CONFIG_KASAN_HW_TAGS */ 73 74 #ifdef CONFIG_KASAN_GENERIC 75 76 /* Generic KASAN uses per-object metadata to store stack traces. */ 77 static inline bool kasan_requires_meta(void) 78 { 79 /* 80 * Technically, Generic KASAN always collects stack traces right now. 81 * However, let's use kasan_stack_collection_enabled() in case the 82 * kasan.stacktrace command-line argument is changed to affect 83 * Generic KASAN. 84 */ 85 return kasan_stack_collection_enabled(); 86 } 87 88 #else /* CONFIG_KASAN_GENERIC */ 89 90 /* Tag-based KASAN modes do not use per-object metadata. */ 91 static inline bool kasan_requires_meta(void) 92 { 93 return false; 94 } 95 96 #endif /* CONFIG_KASAN_GENERIC */ 97 98 #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) 99 #define KASAN_GRANULE_SIZE (1UL << KASAN_SHADOW_SCALE_SHIFT) 100 #else 101 #include <asm/mte-kasan.h> 102 #define KASAN_GRANULE_SIZE MTE_GRANULE_SIZE 103 #endif 104 105 #define KASAN_GRANULE_MASK (KASAN_GRANULE_SIZE - 1) 106 107 #define KASAN_MEMORY_PER_SHADOW_PAGE (KASAN_GRANULE_SIZE << PAGE_SHIFT) 108 109 #ifdef CONFIG_KASAN_GENERIC 110 #define KASAN_PAGE_FREE 0xFF /* freed page */ 111 #define KASAN_PAGE_REDZONE 0xFE /* redzone for kmalloc_large allocation */ 112 #define KASAN_SLAB_REDZONE 0xFC /* redzone for slab object */ 113 #define KASAN_SLAB_FREE 0xFB /* freed slab object */ 114 #define KASAN_VMALLOC_INVALID 0xF8 /* inaccessible space in vmap area */ 115 #else 116 #define KASAN_PAGE_FREE KASAN_TAG_INVALID 117 #define KASAN_PAGE_REDZONE KASAN_TAG_INVALID 118 #define KASAN_SLAB_REDZONE KASAN_TAG_INVALID 119 #define KASAN_SLAB_FREE KASAN_TAG_INVALID 120 #define KASAN_VMALLOC_INVALID KASAN_TAG_INVALID /* only used for SW_TAGS */ 121 #endif 122 123 #ifdef CONFIG_KASAN_GENERIC 124 125 #define KASAN_SLAB_FREETRACK 0xFA /* freed slab object with free track */ 126 #define KASAN_GLOBAL_REDZONE 0xF9 /* redzone for global variable */ 127 128 /* Stack redzone shadow values. Compiler ABI, do not change. */ 129 #define KASAN_STACK_LEFT 0xF1 130 #define KASAN_STACK_MID 0xF2 131 #define KASAN_STACK_RIGHT 0xF3 132 #define KASAN_STACK_PARTIAL 0xF4 133 134 /* alloca redzone shadow values. */ 135 #define KASAN_ALLOCA_LEFT 0xCA 136 #define KASAN_ALLOCA_RIGHT 0xCB 137 138 /* alloca redzone size. Compiler ABI, do not change. */ 139 #define KASAN_ALLOCA_REDZONE_SIZE 32 140 141 /* Stack frame marker. Compiler ABI, do not change. */ 142 #define KASAN_CURRENT_STACK_FRAME_MAGIC 0x41B58AB3 143 144 /* Dummy value to avoid breaking randconfig/all*config builds. */ 145 #ifndef KASAN_ABI_VERSION 146 #define KASAN_ABI_VERSION 1 147 #endif 148 149 #endif /* CONFIG_KASAN_GENERIC */ 150 151 /* Metadata layout customization. */ 152 #define META_BYTES_PER_BLOCK 1 153 #define META_BLOCKS_PER_ROW 16 154 #define META_BYTES_PER_ROW (META_BLOCKS_PER_ROW * META_BYTES_PER_BLOCK) 155 #define META_MEM_BYTES_PER_ROW (META_BYTES_PER_ROW * KASAN_GRANULE_SIZE) 156 #define META_ROWS_AROUND_ADDR 2 157 158 #define KASAN_STACK_DEPTH 64 159 160 struct kasan_track { 161 u32 pid; 162 depot_stack_handle_t stack; 163 }; 164 165 enum kasan_report_type { 166 KASAN_REPORT_ACCESS, 167 KASAN_REPORT_INVALID_FREE, 168 KASAN_REPORT_DOUBLE_FREE, 169 }; 170 171 struct kasan_report_info { 172 /* Filled in by kasan_report_*(). */ 173 enum kasan_report_type type; 174 void *access_addr; 175 size_t access_size; 176 bool is_write; 177 unsigned long ip; 178 179 /* Filled in by the common reporting code. */ 180 void *first_bad_addr; 181 struct kmem_cache *cache; 182 void *object; 183 184 /* Filled in by the mode-specific reporting code. */ 185 const char *bug_type; 186 struct kasan_track alloc_track; 187 struct kasan_track free_track; 188 }; 189 190 /* Do not change the struct layout: compiler ABI. */ 191 struct kasan_source_location { 192 const char *filename; 193 int line_no; 194 int column_no; 195 }; 196 197 /* Do not change the struct layout: compiler ABI. */ 198 struct kasan_global { 199 const void *beg; /* Address of the beginning of the global variable. */ 200 size_t size; /* Size of the global variable. */ 201 size_t size_with_redzone; /* Size of the variable + size of the redzone. 32 bytes aligned. */ 202 const void *name; 203 const void *module_name; /* Name of the module where the global variable is declared. */ 204 unsigned long has_dynamic_init; /* This is needed for C++. */ 205 #if KASAN_ABI_VERSION >= 4 206 struct kasan_source_location *location; 207 #endif 208 #if KASAN_ABI_VERSION >= 5 209 char *odr_indicator; 210 #endif 211 }; 212 213 /* Structures for keeping alloc and free meta. */ 214 215 #ifdef CONFIG_KASAN_GENERIC 216 217 struct kasan_alloc_meta { 218 struct kasan_track alloc_track; 219 /* Free track is stored in kasan_free_meta. */ 220 depot_stack_handle_t aux_stack[2]; 221 }; 222 223 struct qlist_node { 224 struct qlist_node *next; 225 }; 226 227 /* 228 * Free meta is stored either in the object itself or in the redzone after the 229 * object. In the former case, free meta offset is 0. In the latter case, the 230 * offset is between 0 and INT_MAX. INT_MAX marks that free meta is not present. 231 */ 232 #define KASAN_NO_FREE_META INT_MAX 233 234 /* 235 * Free meta is only used by Generic mode while the object is in quarantine. 236 * After that, slab allocator stores the freelist pointer in the object. 237 */ 238 struct kasan_free_meta { 239 struct qlist_node quarantine_link; 240 struct kasan_track free_track; 241 }; 242 243 #endif /* CONFIG_KASAN_GENERIC */ 244 245 #if defined(CONFIG_KASAN_SW_TAGS) || defined(CONFIG_KASAN_HW_TAGS) 246 247 struct kasan_stack_ring_entry { 248 void *ptr; 249 size_t size; 250 u32 pid; 251 depot_stack_handle_t stack; 252 bool is_free; 253 }; 254 255 struct kasan_stack_ring { 256 rwlock_t lock; 257 size_t size; 258 atomic64_t pos; 259 struct kasan_stack_ring_entry *entries; 260 }; 261 262 #endif /* CONFIG_KASAN_SW_TAGS || CONFIG_KASAN_HW_TAGS */ 263 264 #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) 265 266 static inline const void *kasan_shadow_to_mem(const void *shadow_addr) 267 { 268 return (void *)(((unsigned long)shadow_addr - KASAN_SHADOW_OFFSET) 269 << KASAN_SHADOW_SCALE_SHIFT); 270 } 271 272 static inline bool addr_has_metadata(const void *addr) 273 { 274 return (kasan_reset_tag(addr) >= 275 kasan_shadow_to_mem((void *)KASAN_SHADOW_START)); 276 } 277 278 /** 279 * kasan_check_range - Check memory region, and report if invalid access. 280 * @addr: the accessed address 281 * @size: the accessed size 282 * @write: true if access is a write access 283 * @ret_ip: return address 284 * @return: true if access was valid, false if invalid 285 */ 286 bool kasan_check_range(unsigned long addr, size_t size, bool write, 287 unsigned long ret_ip); 288 289 #else /* CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS */ 290 291 static inline bool addr_has_metadata(const void *addr) 292 { 293 return (is_vmalloc_addr(addr) || virt_addr_valid(addr)); 294 } 295 296 #endif /* CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS */ 297 298 void *kasan_find_first_bad_addr(void *addr, size_t size); 299 void kasan_complete_mode_report_info(struct kasan_report_info *info); 300 void kasan_metadata_fetch_row(char *buffer, void *row); 301 302 #if defined(CONFIG_KASAN_SW_TAGS) || defined(CONFIG_KASAN_HW_TAGS) 303 void kasan_print_tags(u8 addr_tag, const void *addr); 304 #else 305 static inline void kasan_print_tags(u8 addr_tag, const void *addr) { } 306 #endif 307 308 #if defined(CONFIG_KASAN_STACK) 309 void kasan_print_address_stack_frame(const void *addr); 310 #else 311 static inline void kasan_print_address_stack_frame(const void *addr) { } 312 #endif 313 314 #ifdef CONFIG_KASAN_GENERIC 315 void kasan_print_aux_stacks(struct kmem_cache *cache, const void *object); 316 #else 317 static inline void kasan_print_aux_stacks(struct kmem_cache *cache, const void *object) { } 318 #endif 319 320 bool kasan_report(unsigned long addr, size_t size, 321 bool is_write, unsigned long ip); 322 void kasan_report_invalid_free(void *object, unsigned long ip, enum kasan_report_type type); 323 324 struct slab *kasan_addr_to_slab(const void *addr); 325 326 #ifdef CONFIG_KASAN_GENERIC 327 void kasan_init_cache_meta(struct kmem_cache *cache, unsigned int *size); 328 void kasan_init_object_meta(struct kmem_cache *cache, const void *object); 329 struct kasan_alloc_meta *kasan_get_alloc_meta(struct kmem_cache *cache, 330 const void *object); 331 struct kasan_free_meta *kasan_get_free_meta(struct kmem_cache *cache, 332 const void *object); 333 #else 334 static inline void kasan_init_cache_meta(struct kmem_cache *cache, unsigned int *size) { } 335 static inline void kasan_init_object_meta(struct kmem_cache *cache, const void *object) { } 336 #endif 337 338 depot_stack_handle_t kasan_save_stack(gfp_t flags, bool can_alloc); 339 void kasan_set_track(struct kasan_track *track, gfp_t flags); 340 void kasan_save_alloc_info(struct kmem_cache *cache, void *object, gfp_t flags); 341 void kasan_save_free_info(struct kmem_cache *cache, void *object); 342 343 #if defined(CONFIG_KASAN_GENERIC) && \ 344 (defined(CONFIG_SLAB) || defined(CONFIG_SLUB)) 345 bool kasan_quarantine_put(struct kmem_cache *cache, void *object); 346 void kasan_quarantine_reduce(void); 347 void kasan_quarantine_remove_cache(struct kmem_cache *cache); 348 #else 349 static inline bool kasan_quarantine_put(struct kmem_cache *cache, void *object) { return false; } 350 static inline void kasan_quarantine_reduce(void) { } 351 static inline void kasan_quarantine_remove_cache(struct kmem_cache *cache) { } 352 #endif 353 354 #ifndef arch_kasan_set_tag 355 static inline const void *arch_kasan_set_tag(const void *addr, u8 tag) 356 { 357 return addr; 358 } 359 #endif 360 #ifndef arch_kasan_get_tag 361 #define arch_kasan_get_tag(addr) 0 362 #endif 363 364 #define set_tag(addr, tag) ((void *)arch_kasan_set_tag((addr), (tag))) 365 #define get_tag(addr) arch_kasan_get_tag(addr) 366 367 #ifdef CONFIG_KASAN_HW_TAGS 368 369 #ifndef arch_enable_tagging_sync 370 #define arch_enable_tagging_sync() 371 #endif 372 #ifndef arch_enable_tagging_async 373 #define arch_enable_tagging_async() 374 #endif 375 #ifndef arch_enable_tagging_asymm 376 #define arch_enable_tagging_asymm() 377 #endif 378 #ifndef arch_force_async_tag_fault 379 #define arch_force_async_tag_fault() 380 #endif 381 #ifndef arch_get_random_tag 382 #define arch_get_random_tag() (0xFF) 383 #endif 384 #ifndef arch_get_mem_tag 385 #define arch_get_mem_tag(addr) (0xFF) 386 #endif 387 #ifndef arch_set_mem_tag_range 388 #define arch_set_mem_tag_range(addr, size, tag, init) ((void *)(addr)) 389 #endif 390 391 #define hw_enable_tagging_sync() arch_enable_tagging_sync() 392 #define hw_enable_tagging_async() arch_enable_tagging_async() 393 #define hw_enable_tagging_asymm() arch_enable_tagging_asymm() 394 #define hw_force_async_tag_fault() arch_force_async_tag_fault() 395 #define hw_get_random_tag() arch_get_random_tag() 396 #define hw_get_mem_tag(addr) arch_get_mem_tag(addr) 397 #define hw_set_mem_tag_range(addr, size, tag, init) \ 398 arch_set_mem_tag_range((addr), (size), (tag), (init)) 399 400 void kasan_enable_tagging(void); 401 402 #else /* CONFIG_KASAN_HW_TAGS */ 403 404 #define hw_enable_tagging_sync() 405 #define hw_enable_tagging_async() 406 #define hw_enable_tagging_asymm() 407 408 static inline void kasan_enable_tagging(void) { } 409 410 #endif /* CONFIG_KASAN_HW_TAGS */ 411 412 #if defined(CONFIG_KASAN_SW_TAGS) || defined(CONFIG_KASAN_HW_TAGS) 413 void __init kasan_init_tags(void); 414 #endif /* CONFIG_KASAN_SW_TAGS || CONFIG_KASAN_HW_TAGS */ 415 416 #if defined(CONFIG_KASAN_HW_TAGS) && IS_ENABLED(CONFIG_KASAN_KUNIT_TEST) 417 418 void kasan_force_async_fault(void); 419 420 #else /* CONFIG_KASAN_HW_TAGS && CONFIG_KASAN_KUNIT_TEST */ 421 422 static inline void kasan_force_async_fault(void) { } 423 424 #endif /* CONFIG_KASAN_HW_TAGS && CONFIG_KASAN_KUNIT_TEST */ 425 426 #ifdef CONFIG_KASAN_SW_TAGS 427 u8 kasan_random_tag(void); 428 #elif defined(CONFIG_KASAN_HW_TAGS) 429 static inline u8 kasan_random_tag(void) { return hw_get_random_tag(); } 430 #else 431 static inline u8 kasan_random_tag(void) { return 0; } 432 #endif 433 434 #ifdef CONFIG_KASAN_HW_TAGS 435 436 static inline void kasan_poison(const void *addr, size_t size, u8 value, bool init) 437 { 438 addr = kasan_reset_tag(addr); 439 440 /* Skip KFENCE memory if called explicitly outside of sl*b. */ 441 if (is_kfence_address(addr)) 442 return; 443 444 if (WARN_ON((unsigned long)addr & KASAN_GRANULE_MASK)) 445 return; 446 if (WARN_ON(size & KASAN_GRANULE_MASK)) 447 return; 448 449 hw_set_mem_tag_range((void *)addr, size, value, init); 450 } 451 452 static inline void kasan_unpoison(const void *addr, size_t size, bool init) 453 { 454 u8 tag = get_tag(addr); 455 456 addr = kasan_reset_tag(addr); 457 458 /* Skip KFENCE memory if called explicitly outside of sl*b. */ 459 if (is_kfence_address(addr)) 460 return; 461 462 if (WARN_ON((unsigned long)addr & KASAN_GRANULE_MASK)) 463 return; 464 /* 465 * Explicitly initialize the memory with the precise object size to 466 * avoid overwriting the slab redzone. This disables initialization in 467 * the arch code and may thus lead to performance penalty. This penalty 468 * does not affect production builds, as slab redzones are not enabled 469 * there. 470 */ 471 if (__slub_debug_enabled() && 472 init && ((unsigned long)size & KASAN_GRANULE_MASK)) { 473 init = false; 474 memzero_explicit((void *)addr, size); 475 } 476 size = round_up(size, KASAN_GRANULE_SIZE); 477 478 hw_set_mem_tag_range((void *)addr, size, tag, init); 479 } 480 481 static inline bool kasan_byte_accessible(const void *addr) 482 { 483 u8 ptr_tag = get_tag(addr); 484 u8 mem_tag = hw_get_mem_tag((void *)addr); 485 486 return ptr_tag == KASAN_TAG_KERNEL || ptr_tag == mem_tag; 487 } 488 489 #else /* CONFIG_KASAN_HW_TAGS */ 490 491 /** 492 * kasan_poison - mark the memory range as inaccessible 493 * @addr - range start address, must be aligned to KASAN_GRANULE_SIZE 494 * @size - range size, must be aligned to KASAN_GRANULE_SIZE 495 * @value - value that's written to metadata for the range 496 * @init - whether to initialize the memory range (only for hardware tag-based) 497 * 498 * The size gets aligned to KASAN_GRANULE_SIZE before marking the range. 499 */ 500 void kasan_poison(const void *addr, size_t size, u8 value, bool init); 501 502 /** 503 * kasan_unpoison - mark the memory range as accessible 504 * @addr - range start address, must be aligned to KASAN_GRANULE_SIZE 505 * @size - range size, can be unaligned 506 * @init - whether to initialize the memory range (only for hardware tag-based) 507 * 508 * For the tag-based modes, the @size gets aligned to KASAN_GRANULE_SIZE before 509 * marking the range. 510 * For the generic mode, the last granule of the memory range gets partially 511 * unpoisoned based on the @size. 512 */ 513 void kasan_unpoison(const void *addr, size_t size, bool init); 514 515 bool kasan_byte_accessible(const void *addr); 516 517 #endif /* CONFIG_KASAN_HW_TAGS */ 518 519 #ifdef CONFIG_KASAN_GENERIC 520 521 /** 522 * kasan_poison_last_granule - mark the last granule of the memory range as 523 * inaccessible 524 * @addr - range start address, must be aligned to KASAN_GRANULE_SIZE 525 * @size - range size 526 * 527 * This function is only available for the generic mode, as it's the only mode 528 * that has partially poisoned memory granules. 529 */ 530 void kasan_poison_last_granule(const void *address, size_t size); 531 532 #else /* CONFIG_KASAN_GENERIC */ 533 534 static inline void kasan_poison_last_granule(const void *address, size_t size) { } 535 536 #endif /* CONFIG_KASAN_GENERIC */ 537 538 #ifndef kasan_arch_is_ready 539 static inline bool kasan_arch_is_ready(void) { return true; } 540 #elif !defined(CONFIG_KASAN_GENERIC) || !defined(CONFIG_KASAN_OUTLINE) 541 #error kasan_arch_is_ready only works in KASAN generic outline mode! 542 #endif 543 544 #if IS_ENABLED(CONFIG_KASAN_KUNIT_TEST) 545 546 void kasan_kunit_test_suite_start(void); 547 void kasan_kunit_test_suite_end(void); 548 549 #else /* CONFIG_KASAN_KUNIT_TEST */ 550 551 static inline void kasan_kunit_test_suite_start(void) { } 552 static inline void kasan_kunit_test_suite_end(void) { } 553 554 #endif /* CONFIG_KASAN_KUNIT_TEST */ 555 556 #if IS_ENABLED(CONFIG_KASAN_KUNIT_TEST) || IS_ENABLED(CONFIG_KASAN_MODULE_TEST) 557 558 bool kasan_save_enable_multi_shot(void); 559 void kasan_restore_multi_shot(bool enabled); 560 561 #endif 562 563 /* 564 * Exported functions for interfaces called from assembly or from generated 565 * code. Declared here to avoid warnings about missing declarations. 566 */ 567 568 asmlinkage void kasan_unpoison_task_stack_below(const void *watermark); 569 void __asan_register_globals(struct kasan_global *globals, size_t size); 570 void __asan_unregister_globals(struct kasan_global *globals, size_t size); 571 void __asan_handle_no_return(void); 572 void __asan_alloca_poison(unsigned long addr, size_t size); 573 void __asan_allocas_unpoison(const void *stack_top, const void *stack_bottom); 574 575 void __asan_load1(unsigned long addr); 576 void __asan_store1(unsigned long addr); 577 void __asan_load2(unsigned long addr); 578 void __asan_store2(unsigned long addr); 579 void __asan_load4(unsigned long addr); 580 void __asan_store4(unsigned long addr); 581 void __asan_load8(unsigned long addr); 582 void __asan_store8(unsigned long addr); 583 void __asan_load16(unsigned long addr); 584 void __asan_store16(unsigned long addr); 585 void __asan_loadN(unsigned long addr, size_t size); 586 void __asan_storeN(unsigned long addr, size_t size); 587 588 void __asan_load1_noabort(unsigned long addr); 589 void __asan_store1_noabort(unsigned long addr); 590 void __asan_load2_noabort(unsigned long addr); 591 void __asan_store2_noabort(unsigned long addr); 592 void __asan_load4_noabort(unsigned long addr); 593 void __asan_store4_noabort(unsigned long addr); 594 void __asan_load8_noabort(unsigned long addr); 595 void __asan_store8_noabort(unsigned long addr); 596 void __asan_load16_noabort(unsigned long addr); 597 void __asan_store16_noabort(unsigned long addr); 598 void __asan_loadN_noabort(unsigned long addr, size_t size); 599 void __asan_storeN_noabort(unsigned long addr, size_t size); 600 601 void __asan_report_load1_noabort(unsigned long addr); 602 void __asan_report_store1_noabort(unsigned long addr); 603 void __asan_report_load2_noabort(unsigned long addr); 604 void __asan_report_store2_noabort(unsigned long addr); 605 void __asan_report_load4_noabort(unsigned long addr); 606 void __asan_report_store4_noabort(unsigned long addr); 607 void __asan_report_load8_noabort(unsigned long addr); 608 void __asan_report_store8_noabort(unsigned long addr); 609 void __asan_report_load16_noabort(unsigned long addr); 610 void __asan_report_store16_noabort(unsigned long addr); 611 void __asan_report_load_n_noabort(unsigned long addr, size_t size); 612 void __asan_report_store_n_noabort(unsigned long addr, size_t size); 613 614 void __asan_set_shadow_00(const void *addr, size_t size); 615 void __asan_set_shadow_f1(const void *addr, size_t size); 616 void __asan_set_shadow_f2(const void *addr, size_t size); 617 void __asan_set_shadow_f3(const void *addr, size_t size); 618 void __asan_set_shadow_f5(const void *addr, size_t size); 619 void __asan_set_shadow_f8(const void *addr, size_t size); 620 621 void *__asan_memset(void *addr, int c, size_t len); 622 void *__asan_memmove(void *dest, const void *src, size_t len); 623 void *__asan_memcpy(void *dest, const void *src, size_t len); 624 625 void __hwasan_load1_noabort(unsigned long addr); 626 void __hwasan_store1_noabort(unsigned long addr); 627 void __hwasan_load2_noabort(unsigned long addr); 628 void __hwasan_store2_noabort(unsigned long addr); 629 void __hwasan_load4_noabort(unsigned long addr); 630 void __hwasan_store4_noabort(unsigned long addr); 631 void __hwasan_load8_noabort(unsigned long addr); 632 void __hwasan_store8_noabort(unsigned long addr); 633 void __hwasan_load16_noabort(unsigned long addr); 634 void __hwasan_store16_noabort(unsigned long addr); 635 void __hwasan_loadN_noabort(unsigned long addr, size_t size); 636 void __hwasan_storeN_noabort(unsigned long addr, size_t size); 637 638 void __hwasan_tag_memory(unsigned long addr, u8 tag, unsigned long size); 639 640 #endif /* __MM_KASAN_KASAN_H */ 641