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Diffstat (limited to 'mm/kasan/report_sw_tags.c')
-rw-r--r--mm/kasan/report_sw_tags.c43
1 files changed, 0 insertions, 43 deletions
diff --git a/mm/kasan/report_sw_tags.c b/mm/kasan/report_sw_tags.c
index 821a14a19a92..d2298c357834 100644
--- a/mm/kasan/report_sw_tags.c
+++ b/mm/kasan/report_sw_tags.c
@@ -29,49 +29,6 @@
#include "kasan.h"
#include "../slab.h"
-const char *kasan_get_bug_type(struct kasan_access_info *info)
-{
-#ifdef CONFIG_KASAN_TAGS_IDENTIFY
- struct kasan_alloc_meta *alloc_meta;
- struct kmem_cache *cache;
- struct page *page;
- const void *addr;
- void *object;
- u8 tag;
- int i;
-
- tag = get_tag(info->access_addr);
- addr = kasan_reset_tag(info->access_addr);
- page = kasan_addr_to_page(addr);
- if (page && PageSlab(page)) {
- cache = page->slab_cache;
- object = nearest_obj(cache, page, (void *)addr);
- alloc_meta = kasan_get_alloc_meta(cache, object);
-
- if (alloc_meta) {
- for (i = 0; i < KASAN_NR_FREE_STACKS; i++) {
- if (alloc_meta->free_pointer_tag[i] == tag)
- return "use-after-free";
- }
- }
- return "out-of-bounds";
- }
-
-#endif
- /*
- * If access_size is a negative number, then it has reason to be
- * defined as out-of-bounds bug type.
- *
- * Casting negative numbers to size_t would indeed turn up as
- * a large size_t and its value will be larger than ULONG_MAX/2,
- * so that this can qualify as out-of-bounds.
- */
- if (info->access_addr + info->access_size < info->access_addr)
- return "out-of-bounds";
-
- return "invalid-access";
-}
-
void *kasan_find_first_bad_addr(void *addr, size_t size)
{
u8 tag = get_tag(addr);