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-rw-r--r--mm/kasan/report_generic.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/mm/kasan/report_generic.c b/mm/kasan/report_generic.c
index 348dc207d462..74d21786ef09 100644
--- a/mm/kasan/report_generic.c
+++ b/mm/kasan/report_generic.c
@@ -127,6 +127,27 @@ const char *kasan_get_bug_type(struct kasan_report_info *info)
return get_wild_bug_type(info);
}
+struct kasan_track *kasan_get_alloc_track(struct kmem_cache *cache,
+ void *object)
+{
+ struct kasan_alloc_meta *alloc_meta;
+
+ alloc_meta = kasan_get_alloc_meta(cache, object);
+ if (!alloc_meta)
+ return NULL;
+
+ return &alloc_meta->alloc_track;
+}
+
+struct kasan_track *kasan_get_free_track(struct kmem_cache *cache,
+ void *object, u8 tag)
+{
+ if (*(u8 *)kasan_mem_to_shadow(object) != KASAN_SLAB_FREETRACK)
+ return NULL;
+ /* Free meta must be present with KASAN_SLAB_FREETRACK. */
+ return &kasan_get_free_meta(cache, object)->free_track;
+}
+
void kasan_metadata_fetch_row(char *buffer, void *row)
{
memcpy(buffer, kasan_mem_to_shadow(row), META_BYTES_PER_ROW);