| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Andrey Konovalov | 1185 | 46.60% | 75 | 52.08% |
| Andrey Ryabinin | 485 | 19.07% | 9 | 6.25% |
| Alexander Potapenko | 263 | 10.34% | 6 | 4.17% |
| Arnd Bergmann | 155 | 6.10% | 3 | 2.08% |
| Vincenzo Frascino | 101 | 3.97% | 4 | 2.78% |
| Andi Kleen | 40 | 1.57% | 2 | 1.39% |
| Walter Wu | 37 | 1.45% | 5 | 3.47% |
| Dmitriy Vyukov | 35 | 1.38% | 4 | 2.78% |
| Daniel Axtens | 32 | 1.26% | 2 | 1.39% |
| Christoph Lameter | 23 | 0.90% | 4 | 2.78% |
| Pekka J Enberg | 22 | 0.87% | 2 | 1.39% |
| Kuan-Ying Lee | 22 | 0.87% | 2 | 1.39% |
| Qian Cai | 18 | 0.71% | 1 | 0.69% |
| Peter Zijlstra | 16 | 0.63% | 1 | 0.69% |
| Juntong Deng | 16 | 0.63% | 1 | 0.69% |
| Marco Elver | 14 | 0.55% | 4 | 2.78% |
| Paul Lawrence | 12 | 0.47% | 1 | 0.69% |
| David Rientjes | 10 | 0.39% | 1 | 0.69% |
| Baoquan He | 7 | 0.28% | 1 | 0.69% |
| JoonSoo Kim | 7 | 0.28% | 2 | 1.39% |
| Huacai Chen | 6 | 0.24% | 1 | 0.69% |
| Patricia Alfonso | 5 | 0.20% | 1 | 0.69% |
| Alexander Popov | 5 | 0.20% | 1 | 0.69% |
| Julien Thierry | 4 | 0.16% | 1 | 0.69% |
| Matthew Wilcox | 4 | 0.16% | 1 | 0.69% |
| Qing Zhang | 4 | 0.16% | 1 | 0.69% |
| Yee Lee | 3 | 0.12% | 1 | 0.69% |
| Mark Rutland | 3 | 0.12% | 1 | 0.69% |
| Vladimir Davydov | 2 | 0.08% | 1 | 0.69% |
| Vlastimil Babka | 2 | 0.08% | 1 | 0.69% |
| Glauber de Oliveira Costa | 2 | 0.08% | 1 | 0.69% |
| Ingo Molnar | 1 | 0.04% | 1 | 0.69% |
| Greg Kroah-Hartman | 1 | 0.04% | 1 | 0.69% |
| Alexey Dobriyan | 1 | 0.04% | 1 | 0.69% |
| Total | 2543 | 144 |
/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __MM_KASAN_KASAN_H #define __MM_KASAN_KASAN_H #include <linux/atomic.h> #include <linux/kasan.h> #include <linux/kasan-tags.h> #include <linux/kfence.h> #include <linux/stackdepot.h> #if defined(CONFIG_KASAN_SW_TAGS) || defined(CONFIG_KASAN_HW_TAGS) #include <linux/static_key.h> DECLARE_STATIC_KEY_TRUE(kasan_flag_stacktrace); static inline bool kasan_stack_collection_enabled(void) { return static_branch_unlikely(&kasan_flag_stacktrace); } #else /* CONFIG_KASAN_SW_TAGS || CONFIG_KASAN_HW_TAGS */ static inline bool kasan_stack_collection_enabled(void) { return true; } #endif /* CONFIG_KASAN_SW_TAGS || CONFIG_KASAN_HW_TAGS */ #ifdef CONFIG_KASAN_HW_TAGS #include "../slab.h" DECLARE_STATIC_KEY_TRUE(kasan_flag_vmalloc); enum kasan_mode { KASAN_MODE_SYNC, KASAN_MODE_ASYNC, KASAN_MODE_ASYMM, }; extern enum kasan_mode kasan_mode __ro_after_init; extern unsigned long kasan_page_alloc_sample; extern unsigned int kasan_page_alloc_sample_order; DECLARE_PER_CPU(long, kasan_page_alloc_skip); static inline bool kasan_vmalloc_enabled(void) { /* Static branch is never enabled with CONFIG_KASAN_VMALLOC disabled. */ return static_branch_likely(&kasan_flag_vmalloc); } static inline bool kasan_async_fault_possible(void) { return kasan_mode == KASAN_MODE_ASYNC || kasan_mode == KASAN_MODE_ASYMM; } static inline bool kasan_sync_fault_possible(void) { return kasan_mode == KASAN_MODE_SYNC || kasan_mode == KASAN_MODE_ASYMM; } static inline bool kasan_sample_page_alloc(unsigned int order) { /* Fast-path for when sampling is disabled. */ if (kasan_page_alloc_sample == 1) return true; if (order < kasan_page_alloc_sample_order) return true; if (this_cpu_dec_return(kasan_page_alloc_skip) < 0) { this_cpu_write(kasan_page_alloc_skip, kasan_page_alloc_sample - 1); return true; } return false; } #else /* CONFIG_KASAN_HW_TAGS */ static inline bool kasan_vmalloc_enabled(void) { return IS_ENABLED(CONFIG_KASAN_VMALLOC); } static inline bool kasan_async_fault_possible(void) { return false; } static inline bool kasan_sync_fault_possible(void) { return true; } static inline bool kasan_sample_page_alloc(unsigned int order) { return true; } #endif /* CONFIG_KASAN_HW_TAGS */ #ifdef CONFIG_KASAN_GENERIC /* * Generic KASAN uses per-object metadata to store alloc and free stack traces * and the quarantine link. */ static inline bool kasan_requires_meta(void) { return true; } #else /* CONFIG_KASAN_GENERIC */ /* * Tag-based KASAN modes do not use per-object metadata: they use the stack * ring to store alloc and free stack traces and do not use qurantine. */ static inline bool kasan_requires_meta(void) { return false; } #endif /* CONFIG_KASAN_GENERIC */ #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) #define KASAN_GRANULE_SIZE (1UL << KASAN_SHADOW_SCALE_SHIFT) #else #include <asm/mte-kasan.h> #define KASAN_GRANULE_SIZE MTE_GRANULE_SIZE #endif #define KASAN_GRANULE_MASK (KASAN_GRANULE_SIZE - 1) #define KASAN_MEMORY_PER_SHADOW_PAGE (KASAN_GRANULE_SIZE << PAGE_SHIFT) #ifdef CONFIG_KASAN_GENERIC #define KASAN_PAGE_FREE 0xFF /* freed page */ #define KASAN_PAGE_REDZONE 0xFE /* redzone for kmalloc_large allocation */ #define KASAN_SLAB_REDZONE 0xFC /* redzone for slab object */ #define KASAN_SLAB_FREE 0xFB /* freed slab object */ #define KASAN_VMALLOC_INVALID 0xF8 /* inaccessible space in vmap area */ #else #define KASAN_PAGE_FREE KASAN_TAG_INVALID #define KASAN_PAGE_REDZONE KASAN_TAG_INVALID #define KASAN_SLAB_REDZONE KASAN_TAG_INVALID #define KASAN_SLAB_FREE KASAN_TAG_INVALID #define KASAN_VMALLOC_INVALID KASAN_TAG_INVALID /* only used for SW_TAGS */ #endif #ifdef CONFIG_KASAN_GENERIC #define KASAN_SLAB_FREE_META 0xFA /* freed slab object with free meta */ #define KASAN_GLOBAL_REDZONE 0xF9 /* redzone for global variable */ /* Stack redzone shadow values. Compiler ABI, do not change. */ #define KASAN_STACK_LEFT 0xF1 #define KASAN_STACK_MID 0xF2 #define KASAN_STACK_RIGHT 0xF3 #define KASAN_STACK_PARTIAL 0xF4 /* alloca redzone shadow values. */ #define KASAN_ALLOCA_LEFT 0xCA #define KASAN_ALLOCA_RIGHT 0xCB /* alloca redzone size. Compiler ABI, do not change. */ #define KASAN_ALLOCA_REDZONE_SIZE 32 /* Stack frame marker. Compiler ABI, do not change. */ #define KASAN_CURRENT_STACK_FRAME_MAGIC 0x41B58AB3 /* Dummy value to avoid breaking randconfig/all*config builds. */ #ifndef KASAN_ABI_VERSION #define KASAN_ABI_VERSION 1 #endif #endif /* CONFIG_KASAN_GENERIC */ /* Metadata layout customization. */ #define META_BYTES_PER_BLOCK 1 #define META_BLOCKS_PER_ROW 16 #define META_BYTES_PER_ROW (META_BLOCKS_PER_ROW * META_BYTES_PER_BLOCK) #define META_MEM_BYTES_PER_ROW (META_BYTES_PER_ROW * KASAN_GRANULE_SIZE) #define META_ROWS_AROUND_ADDR 2 #define KASAN_STACK_DEPTH 64 struct kasan_track { u32 pid; depot_stack_handle_t stack; #ifdef CONFIG_KASAN_EXTRA_INFO u64 cpu:20; u64 timestamp:44; #endif /* CONFIG_KASAN_EXTRA_INFO */ }; enum kasan_report_type { KASAN_REPORT_ACCESS, KASAN_REPORT_INVALID_FREE, KASAN_REPORT_DOUBLE_FREE, }; struct kasan_report_info { /* Filled in by kasan_report_*(). */ enum kasan_report_type type; const void *access_addr; size_t access_size; bool is_write; unsigned long ip; /* Filled in by the common reporting code. */ const void *first_bad_addr; struct kmem_cache *cache; void *object; size_t alloc_size; /* Filled in by the mode-specific reporting code. */ const char *bug_type; struct kasan_track alloc_track; struct kasan_track free_track; }; /* Do not change the struct layout: compiler ABI. */ struct kasan_source_location { const char *filename; int line_no; int column_no; }; /* Do not change the struct layout: compiler ABI. */ struct kasan_global { const void *beg; /* Address of the beginning of the global variable. */ size_t size; /* Size of the global variable. */ size_t size_with_redzone; /* Size of the variable + size of the redzone. 32 bytes aligned. */ const void *name; const void *module_name; /* Name of the module where the global variable is declared. */ unsigned long has_dynamic_init; /* This is needed for C++. */ #if KASAN_ABI_VERSION >= 4 struct kasan_source_location *location; #endif #if KASAN_ABI_VERSION >= 5 char *odr_indicator; #endif }; /* Structures for keeping alloc and free meta. */ #ifdef CONFIG_KASAN_GENERIC /* * Alloc meta contains the allocation-related information about a slab object. * Alloc meta is saved when an object is allocated and is kept until either the * object returns to the slab freelist (leaves quarantine for quarantined * objects or gets freed for the non-quarantined ones) or reallocated via * krealloc or through a mempool. * Alloc meta is stored inside of the object's redzone. * Alloc meta is considered valid whenever it contains non-zero data. */ struct kasan_alloc_meta { struct kasan_track alloc_track; /* Free track is stored in kasan_free_meta. */ depot_stack_handle_t aux_stack[2]; }; struct qlist_node { struct qlist_node *next; }; /* * Free meta is stored either in the object itself or in the redzone after the * object. In the former case, free meta offset is 0. In the latter case, the * offset is between 0 and INT_MAX. INT_MAX marks that free meta is not present. */ #define KASAN_NO_FREE_META INT_MAX /* * Free meta contains the freeing-related information about a slab object. * Free meta is only kept for quarantined objects and for mempool objects until * the object gets allocated again. * Free meta is stored within the object's memory. * Free meta is considered valid whenever the value of the shadow byte that * corresponds to the first 8 bytes of the object is KASAN_SLAB_FREE_META. */ struct kasan_free_meta { struct qlist_node quarantine_link; struct kasan_track free_track; }; #endif /* CONFIG_KASAN_GENERIC */ #if defined(CONFIG_KASAN_SW_TAGS) || defined(CONFIG_KASAN_HW_TAGS) struct kasan_stack_ring_entry { void *ptr; size_t size; struct kasan_track track; bool is_free; }; struct kasan_stack_ring { rwlock_t lock; size_t size; atomic64_t pos; struct kasan_stack_ring_entry *entries; }; #endif /* CONFIG_KASAN_SW_TAGS || CONFIG_KASAN_HW_TAGS */ #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) static __always_inline bool addr_in_shadow(const void *addr) { return addr >= (void *)KASAN_SHADOW_START && addr < (void *)KASAN_SHADOW_END; } #ifndef kasan_shadow_to_mem static inline const void *kasan_shadow_to_mem(const void *shadow_addr) { return (void *)(((unsigned long)shadow_addr - KASAN_SHADOW_OFFSET) << KASAN_SHADOW_SCALE_SHIFT); } #endif #ifndef addr_has_metadata static __always_inline bool addr_has_metadata(const void *addr) { return (kasan_reset_tag(addr) >= kasan_shadow_to_mem((void *)KASAN_SHADOW_START)); } #endif /** * kasan_check_range - Check memory region, and report if invalid access. * @addr: the accessed address * @size: the accessed size * @write: true if access is a write access * @ret_ip: return address * @return: true if access was valid, false if invalid */ bool kasan_check_range(const void *addr, size_t size, bool write, unsigned long ret_ip); #else /* CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS */ static __always_inline bool addr_has_metadata(const void *addr) { return (is_vmalloc_addr(addr) || virt_addr_valid(addr)); } #endif /* CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS */ const void *kasan_find_first_bad_addr(const void *addr, size_t size); size_t kasan_get_alloc_size(void *object, struct kmem_cache *cache); void kasan_complete_mode_report_info(struct kasan_report_info *info); void kasan_metadata_fetch_row(char *buffer, void *row); #if defined(CONFIG_KASAN_SW_TAGS) || defined(CONFIG_KASAN_HW_TAGS) void kasan_print_tags(u8 addr_tag, const void *addr); #else static inline void kasan_print_tags(u8 addr_tag, const void *addr) { } #endif #if defined(CONFIG_KASAN_STACK) void kasan_print_address_stack_frame(const void *addr); #else static inline void kasan_print_address_stack_frame(const void *addr) { } #endif #ifdef CONFIG_KASAN_GENERIC void kasan_print_aux_stacks(struct kmem_cache *cache, const void *object); #else static inline void kasan_print_aux_stacks(struct kmem_cache *cache, const void *object) { } #endif bool kasan_report(const void *addr, size_t size, bool is_write, unsigned long ip); void kasan_report_invalid_free(void *object, unsigned long ip, enum kasan_report_type type); struct slab *kasan_addr_to_slab(const void *addr); #ifdef CONFIG_KASAN_GENERIC struct kasan_alloc_meta *kasan_get_alloc_meta(struct kmem_cache *cache, const void *object); struct kasan_free_meta *kasan_get_free_meta(struct kmem_cache *cache, const void *object); void kasan_init_object_meta(struct kmem_cache *cache, const void *object); #else static inline void kasan_init_object_meta(struct kmem_cache *cache, const void *object) { } #endif depot_stack_handle_t kasan_save_stack(gfp_t flags, depot_flags_t depot_flags); void kasan_set_track(struct kasan_track *track, depot_stack_handle_t stack); void kasan_save_track(struct kasan_track *track, gfp_t flags); void kasan_save_alloc_info(struct kmem_cache *cache, void *object, gfp_t flags); void kasan_save_free_info(struct kmem_cache *cache, void *object); #ifdef CONFIG_KASAN_GENERIC bool kasan_quarantine_put(struct kmem_cache *cache, void *object); void kasan_quarantine_reduce(void); void kasan_quarantine_remove_cache(struct kmem_cache *cache); #else static inline bool kasan_quarantine_put(struct kmem_cache *cache, void *object) { return false; } static inline void kasan_quarantine_reduce(void) { } static inline void kasan_quarantine_remove_cache(struct kmem_cache *cache) { } #endif #ifndef arch_kasan_set_tag static inline const void *arch_kasan_set_tag(const void *addr, u8 tag) { return addr; } #endif #ifndef arch_kasan_get_tag #define arch_kasan_get_tag(addr) 0 #endif #define set_tag(addr, tag) ((void *)arch_kasan_set_tag((addr), (tag))) #define get_tag(addr) arch_kasan_get_tag(addr) #ifdef CONFIG_KASAN_HW_TAGS #define hw_enable_tag_checks_sync() arch_enable_tag_checks_sync() #define hw_enable_tag_checks_async() arch_enable_tag_checks_async() #define hw_enable_tag_checks_asymm() arch_enable_tag_checks_asymm() #define hw_suppress_tag_checks_start() arch_suppress_tag_checks_start() #define hw_suppress_tag_checks_stop() arch_suppress_tag_checks_stop() #define hw_force_async_tag_fault() arch_force_async_tag_fault() #define hw_get_random_tag() arch_get_random_tag() #define hw_get_mem_tag(addr) arch_get_mem_tag(addr) #define hw_set_mem_tag_range(addr, size, tag, init) \ arch_set_mem_tag_range((addr), (size), (tag), (init)) void kasan_enable_hw_tags(void); #else /* CONFIG_KASAN_HW_TAGS */ static inline void kasan_enable_hw_tags(void) { } #endif /* CONFIG_KASAN_HW_TAGS */ #if defined(CONFIG_KASAN_SW_TAGS) || defined(CONFIG_KASAN_HW_TAGS) void __init kasan_init_tags(void); #endif /* CONFIG_KASAN_SW_TAGS || CONFIG_KASAN_HW_TAGS */ #if defined(CONFIG_KASAN_HW_TAGS) && IS_ENABLED(CONFIG_KASAN_KUNIT_TEST) void kasan_force_async_fault(void); #else /* CONFIG_KASAN_HW_TAGS && CONFIG_KASAN_KUNIT_TEST */ static inline void kasan_force_async_fault(void) { } #endif /* CONFIG_KASAN_HW_TAGS && CONFIG_KASAN_KUNIT_TEST */ #ifdef CONFIG_KASAN_SW_TAGS u8 kasan_random_tag(void); #elif defined(CONFIG_KASAN_HW_TAGS) static inline u8 kasan_random_tag(void) { return hw_get_random_tag(); } #else static inline u8 kasan_random_tag(void) { return 0; } #endif #ifdef CONFIG_KASAN_HW_TAGS static inline void kasan_poison(const void *addr, size_t size, u8 value, bool init) { if (WARN_ON((unsigned long)addr & KASAN_GRANULE_MASK)) return; if (WARN_ON(size & KASAN_GRANULE_MASK)) return; hw_set_mem_tag_range(kasan_reset_tag(addr), size, value, init); } static inline void kasan_unpoison(const void *addr, size_t size, bool init) { u8 tag = get_tag(addr); if (WARN_ON((unsigned long)addr & KASAN_GRANULE_MASK)) return; size = round_up(size, KASAN_GRANULE_SIZE); hw_set_mem_tag_range(kasan_reset_tag(addr), size, tag, init); } static inline bool kasan_byte_accessible(const void *addr) { u8 ptr_tag = get_tag(addr); u8 mem_tag = hw_get_mem_tag((void *)addr); return ptr_tag == KASAN_TAG_KERNEL || ptr_tag == mem_tag; } #else /* CONFIG_KASAN_HW_TAGS */ /** * kasan_poison - mark the memory range as inaccessible * @addr - range start address, must be aligned to KASAN_GRANULE_SIZE * @size - range size, must be aligned to KASAN_GRANULE_SIZE * @value - value that's written to metadata for the range * @init - whether to initialize the memory range (only for hardware tag-based) */ void kasan_poison(const void *addr, size_t size, u8 value, bool init); /** * kasan_unpoison - mark the memory range as accessible * @addr - range start address, must be aligned to KASAN_GRANULE_SIZE * @size - range size, can be unaligned * @init - whether to initialize the memory range (only for hardware tag-based) * * For the tag-based modes, the @size gets aligned to KASAN_GRANULE_SIZE before * marking the range. * For the generic mode, the last granule of the memory range gets partially * unpoisoned based on the @size. */ void kasan_unpoison(const void *addr, size_t size, bool init); bool kasan_byte_accessible(const void *addr); #endif /* CONFIG_KASAN_HW_TAGS */ #ifdef CONFIG_KASAN_GENERIC /** * kasan_poison_last_granule - mark the last granule of the memory range as * inaccessible * @addr - range start address, must be aligned to KASAN_GRANULE_SIZE * @size - range size * * This function is only available for the generic mode, as it's the only mode * that has partially poisoned memory granules. */ void kasan_poison_last_granule(const void *address, size_t size); #else /* CONFIG_KASAN_GENERIC */ static inline void kasan_poison_last_granule(const void *address, size_t size) { } #endif /* CONFIG_KASAN_GENERIC */ #ifndef kasan_arch_is_ready static inline bool kasan_arch_is_ready(void) { return true; } #elif !defined(CONFIG_KASAN_GENERIC) || !defined(CONFIG_KASAN_OUTLINE) #error kasan_arch_is_ready only works in KASAN generic outline mode! #endif #if IS_ENABLED(CONFIG_KASAN_KUNIT_TEST) void kasan_kunit_test_suite_start(void); void kasan_kunit_test_suite_end(void); #else /* CONFIG_KASAN_KUNIT_TEST */ static inline void kasan_kunit_test_suite_start(void) { } static inline void kasan_kunit_test_suite_end(void) { } #endif /* CONFIG_KASAN_KUNIT_TEST */ #if IS_ENABLED(CONFIG_KASAN_KUNIT_TEST) || IS_ENABLED(CONFIG_KASAN_MODULE_TEST) bool kasan_save_enable_multi_shot(void); void kasan_restore_multi_shot(bool enabled); #endif /* * Exported functions for interfaces called from assembly or from generated * code. Declared here to avoid warnings about missing declarations. */ void __asan_register_globals(void *globals, ssize_t size); void __asan_unregister_globals(void *globals, ssize_t size); void __asan_handle_no_return(void); void __asan_alloca_poison(void *, ssize_t size); void __asan_allocas_unpoison(void *stack_top, ssize_t stack_bottom); void __asan_load1(void *); void __asan_store1(void *); void __asan_load2(void *); void __asan_store2(void *); void __asan_load4(void *); void __asan_store4(void *); void __asan_load8(void *); void __asan_store8(void *); void __asan_load16(void *); void __asan_store16(void *); void __asan_loadN(void *, ssize_t size); void __asan_storeN(void *, ssize_t size); void __asan_load1_noabort(void *); void __asan_store1_noabort(void *); void __asan_load2_noabort(void *); void __asan_store2_noabort(void *); void __asan_load4_noabort(void *); void __asan_store4_noabort(void *); void __asan_load8_noabort(void *); void __asan_store8_noabort(void *); void __asan_load16_noabort(void *); void __asan_store16_noabort(void *); void __asan_loadN_noabort(void *, ssize_t size); void __asan_storeN_noabort(void *, ssize_t size); void __asan_report_load1_noabort(void *); void __asan_report_store1_noabort(void *); void __asan_report_load2_noabort(void *); void __asan_report_store2_noabort(void *); void __asan_report_load4_noabort(void *); void __asan_report_store4_noabort(void *); void __asan_report_load8_noabort(void *); void __asan_report_store8_noabort(void *); void __asan_report_load16_noabort(void *); void __asan_report_store16_noabort(void *); void __asan_report_load_n_noabort(void *, ssize_t size); void __asan_report_store_n_noabort(void *, ssize_t size); void __asan_set_shadow_00(const void *addr, ssize_t size); void __asan_set_shadow_f1(const void *addr, ssize_t size); void __asan_set_shadow_f2(const void *addr, ssize_t size); void __asan_set_shadow_f3(const void *addr, ssize_t size); void __asan_set_shadow_f5(const void *addr, ssize_t size); void __asan_set_shadow_f8(const void *addr, ssize_t size); void *__asan_memset(void *addr, int c, ssize_t len); void *__asan_memmove(void *dest, const void *src, ssize_t len); void *__asan_memcpy(void *dest, const void *src, ssize_t len); void __hwasan_load1_noabort(void *); void __hwasan_store1_noabort(void *); void __hwasan_load2_noabort(void *); void __hwasan_store2_noabort(void *); void __hwasan_load4_noabort(void *); void __hwasan_store4_noabort(void *); void __hwasan_load8_noabort(void *); void __hwasan_store8_noabort(void *); void __hwasan_load16_noabort(void *); void __hwasan_store16_noabort(void *); void __hwasan_loadN_noabort(void *, ssize_t size); void __hwasan_storeN_noabort(void *, ssize_t size); void __hwasan_tag_memory(void *, u8 tag, ssize_t size); void *__hwasan_memset(void *addr, int c, ssize_t len); void *__hwasan_memmove(void *dest, const void *src, ssize_t len); void *__hwasan_memcpy(void *dest, const void *src, ssize_t len); void kasan_tag_mismatch(void *addr, unsigned long access_info, unsigned long ret_ip); #endif /* __MM_KASAN_KASAN_H */
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