mm/kasan: add API to check memory regions

[cascardo/linux.git] / mm / kasan / kasan.c

diff --git a/mm/kasan/kasan.c b/mm/kasan/kasan.c
index e5beb40..18b6a2b 100644 (file)
--- a/mm/kasan/kasan.c
+++ b/mm/kasan/kasan.c
@@ -299,6 +299,18 @@ static void check_memory_region(unsigned long addr,
        check_memory_region_inline(addr, size, write, ret_ip);
 }
 
+void kasan_check_read(const void *p, unsigned int size)
+{
+       check_memory_region((unsigned long)p, size, false, _RET_IP_);
+}
+EXPORT_SYMBOL(kasan_check_read);
+
+void kasan_check_write(const void *p, unsigned int size)
+{
+       check_memory_region((unsigned long)p, size, true, _RET_IP_);
+}
+EXPORT_SYMBOL(kasan_check_write);
+
 #undef memset
 void *memset(void *addr, int c, size_t len)
 {