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-rw-r--r--mm/kasan/shadow.c18
1 files changed, 3 insertions, 15 deletions
diff --git a/mm/kasan/shadow.c b/mm/kasan/shadow.c
index d687f09a7a..9ef84f3183 100644
--- a/mm/kasan/shadow.c
+++ b/mm/kasan/shadow.c
@@ -130,15 +130,11 @@ void kasan_poison(const void *addr, size_t size, u8 value, bool init)
/*
* Perform shadow offset calculation based on untagged address, as
- * some of the callers (e.g. kasan_poison_object_data) pass tagged
+ * some of the callers (e.g. kasan_poison_new_object) pass tagged
* addresses to this function.
*/
addr = kasan_reset_tag(addr);
- /* Skip KFENCE memory if called explicitly outside of sl*b. */
- if (is_kfence_address(addr))
- return;
-
if (WARN_ON((unsigned long)addr & KASAN_GRANULE_MASK))
return;
if (WARN_ON(size & KASAN_GRANULE_MASK))
@@ -149,7 +145,7 @@ void kasan_poison(const void *addr, size_t size, u8 value, bool init)
__memset(shadow_start, value, shadow_end - shadow_start);
}
-EXPORT_SYMBOL(kasan_poison);
+EXPORT_SYMBOL_GPL(kasan_poison);
#ifdef CONFIG_KASAN_GENERIC
void kasan_poison_last_granule(const void *addr, size_t size)
@@ -170,19 +166,11 @@ void kasan_unpoison(const void *addr, size_t size, bool init)
/*
* Perform shadow offset calculation based on untagged address, as
- * some of the callers (e.g. kasan_unpoison_object_data) pass tagged
+ * some of the callers (e.g. kasan_unpoison_new_object) pass tagged
* addresses to this function.
*/
addr = kasan_reset_tag(addr);
- /*
- * Skip KFENCE memory if called explicitly outside of sl*b. Also note
- * that calls to ksize(), where size is not a multiple of machine-word
- * size, would otherwise poison the invalid portion of the word.
- */
- if (is_kfence_address(addr))
- return;
-
if (WARN_ON((unsigned long)addr & KASAN_GRANULE_MASK))
return;