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/spinlock.h> 10 #include <linux/stackdepot.h> 11 12 #if defined(CONFIG_KASAN_SW_TAGS) || defined(CONFIG_KASAN_HW_TAGS) 13 14 #include <linux/static_key.h> 15 16 DECLARE_STATIC_KEY_TRUE(kasan_flag_stacktrace); 17 18 static inline bool kasan_stack_collection_enabled(void) 19 { 20 return static_branch_unlikely(&kasan_flag_stacktrace); 21 } 22 23 #else /* CONFIG_KASAN_SW_TAGS || CONFIG_KASAN_HW_TAGS */ 24 25 static inline bool kasan_stack_collection_enabled(void) 26 { 27 return true; 28 } 29 30 #endif /* CONFIG_KASAN_SW_TAGS || CONFIG_KASAN_HW_TAGS */ 31 32 #ifdef CONFIG_KASAN_HW_TAGS 33 34 #include "../slab.h" 35 36 DECLARE_STATIC_KEY_TRUE(kasan_flag_vmalloc); 37 38 enum kasan_mode { 39 KASAN_MODE_SYNC, 40 KASAN_MODE_ASYNC, 41 KASAN_MODE_ASYMM, 42 }; 43 44 extern enum kasan_mode kasan_mode __ro_after_init; 45 46 extern unsigned long kasan_page_alloc_sample; 47 extern unsigned int kasan_page_alloc_sample_order; 48 DECLARE_PER_CPU(long, kasan_page_alloc_skip); 49 50 static inline bool kasan_vmalloc_enabled(void) 51 { 52 /* Static branch is never enabled with CONFIG_KASAN_VMALLOC disabled. */ 53 return static_branch_likely(&kasan_flag_vmalloc); 54 } 55 56 static inline bool kasan_async_fault_possible(void) 57 { 58 return kasan_mode == KASAN_MODE_ASYNC || kasan_mode == KASAN_MODE_ASYMM; 59 } 60 61 static inline bool kasan_sync_fault_possible(void) 62 { 63 return kasan_mode == KASAN_MODE_SYNC || kasan_mode == KASAN_MODE_ASYMM; 64 } 65 66 static inline bool kasan_sample_page_alloc(unsigned int order) 67 { 68 /* Fast-path for when sampling is disabled. */ 69 if (kasan_page_alloc_sample == 1) 70 return true; 71 72 if (order < kasan_page_alloc_sample_order) 73 return true; 74 75 if (this_cpu_dec_return(kasan_page_alloc_skip) < 0) { 76 this_cpu_write(kasan_page_alloc_skip, 77 kasan_page_alloc_sample - 1); 78 return true; 79 } 80 81 return false; 82 } 83 84 #else /* CONFIG_KASAN_HW_TAGS */ 85 86 static inline bool kasan_vmalloc_enabled(void) 87 { 88 return IS_ENABLED(CONFIG_KASAN_VMALLOC); 89 } 90 91 static inline bool kasan_async_fault_possible(void) 92 { 93 return false; 94 } 95 96 static inline bool kasan_sync_fault_possible(void) 97 { 98 return true; 99 } 100 101 static inline bool kasan_sample_page_alloc(unsigned int order) 102 { 103 return true; 104 } 105 106 #endif /* CONFIG_KASAN_HW_TAGS */ 107 108 #ifdef CONFIG_KASAN_GENERIC 109 110 /* 111 * Generic KASAN uses per-object metadata to store alloc and free stack traces 112 * and the quarantine link. 113 */ 114 static inline bool kasan_requires_meta(void) 115 { 116 return true; 117 } 118 119 #else /* CONFIG_KASAN_GENERIC */ 120 121 /* 122 * Tag-based KASAN modes do not use per-object metadata: they use the stack 123 * ring to store alloc and free stack traces and do not use qurantine. 124 */ 125 static inline bool kasan_requires_meta(void) 126 { 127 return false; 128 } 129 130 #endif /* CONFIG_KASAN_GENERIC */ 131 132 #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) 133 #define KASAN_GRANULE_SIZE (1UL << KASAN_SHADOW_SCALE_SHIFT) 134 #else 135 #include <asm/mte-kasan.h> 136 #define KASAN_GRANULE_SIZE MTE_GRANULE_SIZE 137 #endif 138 139 #define KASAN_GRANULE_MASK (KASAN_GRANULE_SIZE - 1) 140 141 #define KASAN_MEMORY_PER_SHADOW_PAGE (KASAN_GRANULE_SIZE << PAGE_SHIFT) 142 143 #ifdef CONFIG_KASAN_GENERIC 144 #define KASAN_PAGE_FREE 0xFF /* freed page */ 145 #define KASAN_PAGE_REDZONE 0xFE /* redzone for kmalloc_large allocation */ 146 #define KASAN_SLAB_REDZONE 0xFC /* redzone for slab object */ 147 #define KASAN_SLAB_FREE 0xFB /* freed slab object */ 148 #define KASAN_VMALLOC_INVALID 0xF8 /* inaccessible space in vmap area */ 149 #else 150 #define KASAN_PAGE_FREE KASAN_TAG_INVALID 151 #define KASAN_PAGE_REDZONE KASAN_TAG_INVALID 152 #define KASAN_SLAB_REDZONE KASAN_TAG_INVALID 153 #define KASAN_SLAB_FREE KASAN_TAG_INVALID 154 #define KASAN_VMALLOC_INVALID KASAN_TAG_INVALID /* only used for SW_TAGS */ 155 #endif 156 157 #ifdef CONFIG_KASAN_GENERIC 158 159 #define KASAN_SLAB_FREE_META 0xFA /* freed slab object with free meta */ 160 #define KASAN_GLOBAL_REDZONE 0xF9 /* redzone for global variable */ 161 162 /* Stack redzone shadow values. Compiler ABI, do not change. */ 163 #define KASAN_STACK_LEFT 0xF1 164 #define KASAN_STACK_MID 0xF2 165 #define KASAN_STACK_RIGHT 0xF3 166 #define KASAN_STACK_PARTIAL 0xF4 167 168 /* alloca redzone shadow values. */ 169 #define KASAN_ALLOCA_LEFT 0xCA 170 #define KASAN_ALLOCA_RIGHT 0xCB 171 172 /* alloca redzone size. Compiler ABI, do not change. */ 173 #define KASAN_ALLOCA_REDZONE_SIZE 32 174 175 /* Stack frame marker. Compiler ABI, do not change. */ 176 #define KASAN_CURRENT_STACK_FRAME_MAGIC 0x41B58AB3 177 178 /* Dummy value to avoid breaking randconfig/all*config builds. */ 179 #ifndef KASAN_ABI_VERSION 180 #define KASAN_ABI_VERSION 1 181 #endif 182 183 #endif /* CONFIG_KASAN_GENERIC */ 184 185 /* Metadata layout customization. */ 186 #define META_BYTES_PER_BLOCK 1 187 #define META_BLOCKS_PER_ROW 16 188 #define META_BYTES_PER_ROW (META_BLOCKS_PER_ROW * META_BYTES_PER_BLOCK) 189 #define META_MEM_BYTES_PER_ROW (META_BYTES_PER_ROW * KASAN_GRANULE_SIZE) 190 #define META_ROWS_AROUND_ADDR 2 191 192 #define KASAN_STACK_DEPTH 64 193 194 struct kasan_track { 195 u32 pid; 196 depot_stack_handle_t stack; 197 #ifdef CONFIG_KASAN_EXTRA_INFO 198 u64 cpu:20; 199 u64 timestamp:44; 200 #endif /* CONFIG_KASAN_EXTRA_INFO */ 201 }; 202 203 enum kasan_report_type { 204 KASAN_REPORT_ACCESS, 205 KASAN_REPORT_INVALID_FREE, 206 KASAN_REPORT_DOUBLE_FREE, 207 }; 208 209 struct kasan_report_info { 210 /* Filled in by kasan_report_*(). */ 211 enum kasan_report_type type; 212 const void *access_addr; 213 size_t access_size; 214 bool is_write; 215 unsigned long ip; 216 217 /* Filled in by the common reporting code. */ 218 const void *first_bad_addr; 219 struct kmem_cache *cache; 220 void *object; 221 size_t alloc_size; 222 223 /* Filled in by the mode-specific reporting code. */ 224 const char *bug_type; 225 struct kasan_track alloc_track; 226 struct kasan_track free_track; 227 }; 228 229 /* Do not change the struct layout: compiler ABI. */ 230 struct kasan_source_location { 231 const char *filename; 232 int line_no; 233 int column_no; 234 }; 235 236 /* Do not change the struct layout: compiler ABI. */ 237 struct kasan_global { 238 const void *beg; /* Address of the beginning of the global variable. */ 239 size_t size; /* Size of the global variable. */ 240 size_t size_with_redzone; /* Size of the variable + size of the redzone. 32 bytes aligned. */ 241 const void *name; 242 const void *module_name; /* Name of the module where the global variable is declared. */ 243 unsigned long has_dynamic_init; /* This is needed for C++. */ 244 #if KASAN_ABI_VERSION >= 4 245 struct kasan_source_location *location; 246 #endif 247 #if KASAN_ABI_VERSION >= 5 248 char *odr_indicator; 249 #endif 250 }; 251 252 /* Structures for keeping alloc and free meta. */ 253 254 #ifdef CONFIG_KASAN_GENERIC 255 256 /* 257 * Alloc meta contains the allocation-related information about a slab object. 258 * Alloc meta is saved when an object is allocated and is kept until either the 259 * object returns to the slab freelist (leaves quarantine for quarantined 260 * objects or gets freed for the non-quarantined ones) or reallocated via 261 * krealloc or through a mempool. 262 * Alloc meta is stored inside of the object's redzone. 263 * Alloc meta is considered valid whenever it contains non-zero data. 264 */ 265 struct kasan_alloc_meta { 266 struct kasan_track alloc_track; 267 /* Free track is stored in kasan_free_meta. */ 268 /* 269 * aux_lock protects aux_stack from accesses from concurrent 270 * kasan_record_aux_stack calls. It is a raw spinlock to avoid sleeping 271 * on RT kernels, as kasan_record_aux_stack_noalloc can be called from 272 * non-sleepable contexts. 273 */ 274 raw_spinlock_t aux_lock; 275 depot_stack_handle_t aux_stack[2]; 276 }; 277 278 struct qlist_node { 279 struct qlist_node *next; 280 }; 281 282 /* 283 * Free meta is stored either in the object itself or in the redzone after the 284 * object. In the former case, free meta offset is 0. In the latter case, the 285 * offset is between 0 and INT_MAX. INT_MAX marks that free meta is not present. 286 */ 287 #define KASAN_NO_FREE_META INT_MAX 288 289 /* 290 * Free meta contains the freeing-related information about a slab object. 291 * Free meta is only kept for quarantined objects and for mempool objects until 292 * the object gets allocated again. 293 * Free meta is stored within the object's memory. 294 * Free meta is considered valid whenever the value of the shadow byte that 295 * corresponds to the first 8 bytes of the object is KASAN_SLAB_FREE_META. 296 */ 297 struct kasan_free_meta { 298 struct qlist_node quarantine_link; 299 struct kasan_track free_track; 300 }; 301 302 #endif /* CONFIG_KASAN_GENERIC */ 303 304 #if defined(CONFIG_KASAN_SW_TAGS) || defined(CONFIG_KASAN_HW_TAGS) 305 306 struct kasan_stack_ring_entry { 307 void *ptr; 308 size_t size; 309 struct kasan_track track; 310 bool is_free; 311 }; 312 313 struct kasan_stack_ring { 314 rwlock_t lock; 315 size_t size; 316 atomic64_t pos; 317 struct kasan_stack_ring_entry *entries; 318 }; 319 320 #endif /* CONFIG_KASAN_SW_TAGS || CONFIG_KASAN_HW_TAGS */ 321 322 #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) 323 324 static __always_inline bool addr_in_shadow(const void *addr) 325 { 326 return addr >= (void *)KASAN_SHADOW_START && 327 addr < (void *)KASAN_SHADOW_END; 328 } 329 330 #ifndef kasan_shadow_to_mem 331 static inline const void *kasan_shadow_to_mem(const void *shadow_addr) 332 { 333 return (void *)(((unsigned long)shadow_addr - KASAN_SHADOW_OFFSET) 334 << KASAN_SHADOW_SCALE_SHIFT); 335 } 336 #endif 337 338 #ifndef addr_has_metadata 339 static __always_inline bool addr_has_metadata(const void *addr) 340 { 341 return (kasan_reset_tag(addr) >= 342 kasan_shadow_to_mem((void *)KASAN_SHADOW_START)); 343 } 344 #endif 345 346 /** 347 * kasan_check_range - Check memory region, and report if invalid access. 348 * @addr: the accessed address 349 * @size: the accessed size 350 * @write: true if access is a write access 351 * @ret_ip: return address 352 * @return: true if access was valid, false if invalid 353 */ 354 bool kasan_check_range(const void *addr, size_t size, bool write, 355 unsigned long ret_ip); 356 357 #else /* CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS */ 358 359 static __always_inline bool addr_has_metadata(const void *addr) 360 { 361 return (is_vmalloc_addr(addr) || virt_addr_valid(addr)); 362 } 363 364 #endif /* CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS */ 365 366 const void *kasan_find_first_bad_addr(const void *addr, size_t size); 367 size_t kasan_get_alloc_size(void *object, struct kmem_cache *cache); 368 void kasan_complete_mode_report_info(struct kasan_report_info *info); 369 void kasan_metadata_fetch_row(char *buffer, void *row); 370 371 #if defined(CONFIG_KASAN_SW_TAGS) || defined(CONFIG_KASAN_HW_TAGS) 372 void kasan_print_tags(u8 addr_tag, const void *addr); 373 #else 374 static inline void kasan_print_tags(u8 addr_tag, const void *addr) { } 375 #endif 376 377 #if defined(CONFIG_KASAN_STACK) 378 void kasan_print_address_stack_frame(const void *addr); 379 #else 380 static inline void kasan_print_address_stack_frame(const void *addr) { } 381 #endif 382 383 #ifdef CONFIG_KASAN_GENERIC 384 void kasan_print_aux_stacks(struct kmem_cache *cache, const void *object); 385 #else 386 static inline void kasan_print_aux_stacks(struct kmem_cache *cache, const void *object) { } 387 #endif 388 389 bool kasan_report(const void *addr, size_t size, 390 bool is_write, unsigned long ip); 391 void kasan_report_invalid_free(void *object, unsigned long ip, enum kasan_report_type type); 392 393 struct slab *kasan_addr_to_slab(const void *addr); 394 395 #ifdef CONFIG_KASAN_GENERIC 396 struct kasan_alloc_meta *kasan_get_alloc_meta(struct kmem_cache *cache, 397 const void *object); 398 struct kasan_free_meta *kasan_get_free_meta(struct kmem_cache *cache, 399 const void *object); 400 void kasan_init_object_meta(struct kmem_cache *cache, const void *object); 401 void kasan_release_object_meta(struct kmem_cache *cache, const void *object); 402 #else 403 static inline void kasan_init_object_meta(struct kmem_cache *cache, const void *object) { } 404 static inline void kasan_release_object_meta(struct kmem_cache *cache, const void *object) { } 405 #endif 406 407 depot_stack_handle_t kasan_save_stack(gfp_t flags, depot_flags_t depot_flags); 408 void kasan_set_track(struct kasan_track *track, depot_stack_handle_t stack); 409 void kasan_save_track(struct kasan_track *track, gfp_t flags); 410 void kasan_save_alloc_info(struct kmem_cache *cache, void *object, gfp_t flags); 411 void kasan_save_free_info(struct kmem_cache *cache, void *object); 412 413 #ifdef CONFIG_KASAN_GENERIC 414 bool kasan_quarantine_put(struct kmem_cache *cache, void *object); 415 void kasan_quarantine_reduce(void); 416 void kasan_quarantine_remove_cache(struct kmem_cache *cache); 417 #else 418 static inline bool kasan_quarantine_put(struct kmem_cache *cache, void *object) { return false; } 419 static inline void kasan_quarantine_reduce(void) { } 420 static inline void kasan_quarantine_remove_cache(struct kmem_cache *cache) { } 421 #endif 422 423 #ifndef arch_kasan_set_tag 424 static inline const void *arch_kasan_set_tag(const void *addr, u8 tag) 425 { 426 return addr; 427 } 428 #endif 429 #ifndef arch_kasan_get_tag 430 #define arch_kasan_get_tag(addr) 0 431 #endif 432 433 #define set_tag(addr, tag) ((void *)arch_kasan_set_tag((addr), (tag))) 434 #define get_tag(addr) arch_kasan_get_tag(addr) 435 436 #ifdef CONFIG_KASAN_HW_TAGS 437 438 #define hw_enable_tag_checks_sync() arch_enable_tag_checks_sync() 439 #define hw_enable_tag_checks_async() arch_enable_tag_checks_async() 440 #define hw_enable_tag_checks_asymm() arch_enable_tag_checks_asymm() 441 #define hw_suppress_tag_checks_start() arch_suppress_tag_checks_start() 442 #define hw_suppress_tag_checks_stop() arch_suppress_tag_checks_stop() 443 #define hw_force_async_tag_fault() arch_force_async_tag_fault() 444 #define hw_get_random_tag() arch_get_random_tag() 445 #define hw_get_mem_tag(addr) arch_get_mem_tag(addr) 446 #define hw_set_mem_tag_range(addr, size, tag, init) \ 447 arch_set_mem_tag_range((addr), (size), (tag), (init)) 448 449 void kasan_enable_hw_tags(void); 450 451 #else /* CONFIG_KASAN_HW_TAGS */ 452 453 static inline void kasan_enable_hw_tags(void) { } 454 455 #endif /* CONFIG_KASAN_HW_TAGS */ 456 457 #if defined(CONFIG_KASAN_SW_TAGS) || defined(CONFIG_KASAN_HW_TAGS) 458 void __init kasan_init_tags(void); 459 #endif /* CONFIG_KASAN_SW_TAGS || CONFIG_KASAN_HW_TAGS */ 460 461 #if defined(CONFIG_KASAN_HW_TAGS) && IS_ENABLED(CONFIG_KASAN_KUNIT_TEST) 462 463 void kasan_force_async_fault(void); 464 465 #else /* CONFIG_KASAN_HW_TAGS && CONFIG_KASAN_KUNIT_TEST */ 466 467 static inline void kasan_force_async_fault(void) { } 468 469 #endif /* CONFIG_KASAN_HW_TAGS && CONFIG_KASAN_KUNIT_TEST */ 470 471 #ifdef CONFIG_KASAN_SW_TAGS 472 u8 kasan_random_tag(void); 473 #elif defined(CONFIG_KASAN_HW_TAGS) 474 static inline u8 kasan_random_tag(void) { return hw_get_random_tag(); } 475 #else 476 static inline u8 kasan_random_tag(void) { return 0; } 477 #endif 478 479 #ifdef CONFIG_KASAN_HW_TAGS 480 481 static inline void kasan_poison(const void *addr, size_t size, u8 value, bool init) 482 { 483 if (WARN_ON((unsigned long)addr & KASAN_GRANULE_MASK)) 484 return; 485 if (WARN_ON(size & KASAN_GRANULE_MASK)) 486 return; 487 488 hw_set_mem_tag_range(kasan_reset_tag(addr), size, value, init); 489 } 490 491 static inline void kasan_unpoison(const void *addr, size_t size, bool init) 492 { 493 u8 tag = get_tag(addr); 494 495 if (WARN_ON((unsigned long)addr & KASAN_GRANULE_MASK)) 496 return; 497 size = round_up(size, KASAN_GRANULE_SIZE); 498 499 hw_set_mem_tag_range(kasan_reset_tag(addr), size, tag, init); 500 } 501 502 static inline bool kasan_byte_accessible(const void *addr) 503 { 504 u8 ptr_tag = get_tag(addr); 505 u8 mem_tag = hw_get_mem_tag((void *)addr); 506 507 return ptr_tag == KASAN_TAG_KERNEL || ptr_tag == mem_tag; 508 } 509 510 #else /* CONFIG_KASAN_HW_TAGS */ 511 512 /** 513 * kasan_poison - mark the memory range as inaccessible 514 * @addr - range start address, must be aligned to KASAN_GRANULE_SIZE 515 * @size - range size, must be aligned to KASAN_GRANULE_SIZE 516 * @value - value that's written to metadata for the range 517 * @init - whether to initialize the memory range (only for hardware tag-based) 518 */ 519 void kasan_poison(const void *addr, size_t size, u8 value, bool init); 520 521 /** 522 * kasan_unpoison - mark the memory range as accessible 523 * @addr - range start address, must be aligned to KASAN_GRANULE_SIZE 524 * @size - range size, can be unaligned 525 * @init - whether to initialize the memory range (only for hardware tag-based) 526 * 527 * For the tag-based modes, the @size gets aligned to KASAN_GRANULE_SIZE before 528 * marking the range. 529 * For the generic mode, the last granule of the memory range gets partially 530 * unpoisoned based on the @size. 531 */ 532 void kasan_unpoison(const void *addr, size_t size, bool init); 533 534 bool kasan_byte_accessible(const void *addr); 535 536 #endif /* CONFIG_KASAN_HW_TAGS */ 537 538 #ifdef CONFIG_KASAN_GENERIC 539 540 /** 541 * kasan_poison_last_granule - mark the last granule of the memory range as 542 * inaccessible 543 * @addr - range start address, must be aligned to KASAN_GRANULE_SIZE 544 * @size - range size 545 * 546 * This function is only available for the generic mode, as it's the only mode 547 * that has partially poisoned memory granules. 548 */ 549 void kasan_poison_last_granule(const void *address, size_t size); 550 551 #else /* CONFIG_KASAN_GENERIC */ 552 553 static inline void kasan_poison_last_granule(const void *address, size_t size) { } 554 555 #endif /* CONFIG_KASAN_GENERIC */ 556 557 #ifndef kasan_arch_is_ready 558 static inline bool kasan_arch_is_ready(void) { return true; } 559 #elif !defined(CONFIG_KASAN_GENERIC) || !defined(CONFIG_KASAN_OUTLINE) 560 #error kasan_arch_is_ready only works in KASAN generic outline mode! 561 #endif 562 563 #if IS_ENABLED(CONFIG_KASAN_KUNIT_TEST) 564 565 void kasan_kunit_test_suite_start(void); 566 void kasan_kunit_test_suite_end(void); 567 568 #else /* CONFIG_KASAN_KUNIT_TEST */ 569 570 static inline void kasan_kunit_test_suite_start(void) { } 571 static inline void kasan_kunit_test_suite_end(void) { } 572 573 #endif /* CONFIG_KASAN_KUNIT_TEST */ 574 575 #if IS_ENABLED(CONFIG_KASAN_KUNIT_TEST) || IS_ENABLED(CONFIG_KASAN_MODULE_TEST) 576 577 bool kasan_save_enable_multi_shot(void); 578 void kasan_restore_multi_shot(bool enabled); 579 580 #endif 581 582 /* 583 * Exported functions for interfaces called from assembly or from generated 584 * code. Declared here to avoid warnings about missing declarations. 585 */ 586 587 void __asan_register_globals(void *globals, ssize_t size); 588 void __asan_unregister_globals(void *globals, ssize_t size); 589 void __asan_handle_no_return(void); 590 void __asan_alloca_poison(void *, ssize_t size); 591 void __asan_allocas_unpoison(void *stack_top, ssize_t stack_bottom); 592 593 void __asan_load1(void *); 594 void __asan_store1(void *); 595 void __asan_load2(void *); 596 void __asan_store2(void *); 597 void __asan_load4(void *); 598 void __asan_store4(void *); 599 void __asan_load8(void *); 600 void __asan_store8(void *); 601 void __asan_load16(void *); 602 void __asan_store16(void *); 603 void __asan_loadN(void *, ssize_t size); 604 void __asan_storeN(void *, ssize_t size); 605 606 void __asan_load1_noabort(void *); 607 void __asan_store1_noabort(void *); 608 void __asan_load2_noabort(void *); 609 void __asan_store2_noabort(void *); 610 void __asan_load4_noabort(void *); 611 void __asan_store4_noabort(void *); 612 void __asan_load8_noabort(void *); 613 void __asan_store8_noabort(void *); 614 void __asan_load16_noabort(void *); 615 void __asan_store16_noabort(void *); 616 void __asan_loadN_noabort(void *, ssize_t size); 617 void __asan_storeN_noabort(void *, ssize_t size); 618 619 void __asan_report_load1_noabort(void *); 620 void __asan_report_store1_noabort(void *); 621 void __asan_report_load2_noabort(void *); 622 void __asan_report_store2_noabort(void *); 623 void __asan_report_load4_noabort(void *); 624 void __asan_report_store4_noabort(void *); 625 void __asan_report_load8_noabort(void *); 626 void __asan_report_store8_noabort(void *); 627 void __asan_report_load16_noabort(void *); 628 void __asan_report_store16_noabort(void *); 629 void __asan_report_load_n_noabort(void *, ssize_t size); 630 void __asan_report_store_n_noabort(void *, ssize_t size); 631 632 void __asan_set_shadow_00(const void *addr, ssize_t size); 633 void __asan_set_shadow_f1(const void *addr, ssize_t size); 634 void __asan_set_shadow_f2(const void *addr, ssize_t size); 635 void __asan_set_shadow_f3(const void *addr, ssize_t size); 636 void __asan_set_shadow_f5(const void *addr, ssize_t size); 637 void __asan_set_shadow_f8(const void *addr, ssize_t size); 638 639 void *__asan_memset(void *addr, int c, ssize_t len); 640 void *__asan_memmove(void *dest, const void *src, ssize_t len); 641 void *__asan_memcpy(void *dest, const void *src, ssize_t len); 642 643 void __hwasan_load1_noabort(void *); 644 void __hwasan_store1_noabort(void *); 645 void __hwasan_load2_noabort(void *); 646 void __hwasan_store2_noabort(void *); 647 void __hwasan_load4_noabort(void *); 648 void __hwasan_store4_noabort(void *); 649 void __hwasan_load8_noabort(void *); 650 void __hwasan_store8_noabort(void *); 651 void __hwasan_load16_noabort(void *); 652 void __hwasan_store16_noabort(void *); 653 void __hwasan_loadN_noabort(void *, ssize_t size); 654 void __hwasan_storeN_noabort(void *, ssize_t size); 655 656 void __hwasan_tag_memory(void *, u8 tag, ssize_t size); 657 658 void *__hwasan_memset(void *addr, int c, ssize_t len); 659 void *__hwasan_memmove(void *dest, const void *src, ssize_t len); 660 void *__hwasan_memcpy(void *dest, const void *src, ssize_t len); 661 662 void kasan_tag_mismatch(void *addr, unsigned long access_info, 663 unsigned long ret_ip); 664 665 #endif /* __MM_KASAN_KASAN_H */ 666