1 files changed, 6 insertions, 0 deletions
diff --git a/mm/maccess.c b/mm/maccess.c
index d3f1a1f0b1c1..3fed2b876539 100644
--- a/mm/maccess.c
+++ b/mm/maccess.c
@@ -335,3 +335,9 @@ long strnlen_user_nofault(const void __user *unsafe_addr, long count)
 
 	return ret;
 }
+
+void __copy_overflow(int size, unsigned long count)
+{
+	WARN(1, "Buffer overflow detected (%d < %lu)!\n", size, count);
+}
+EXPORT_SYMBOL(__copy_overflow);