mm: kasan supports checking 0 address access

Signed-off-by: yinshengkai <yinshengkai@xiaomi.com>
2024-06-06 17:06:36 +08:00 · 2024-06-06 17:06:36 +08:00 · 496e44db7f
commit 496e44db7f
parent ae7a3d7071
1 changed files with 5 additions and 0 deletions
--- a/mm/kasan/hook.c
+++ b/mm/kasan/hook.c
@ -173,6 +173,11 @@ static inline void kasan_check_report(FAR const void *addr, size_t size,
      return;
    }

+  if (addr == NULL)
+    {
+      kasan_report(addr, size, is_write, return_address);
+    }
+
  if (kasan_is_poisoned(addr, size))
    {
      kasan_report(addr, size, is_write, return_address);