1 files changed, 2 insertions, 3 deletions

diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c
index 8c190ca7ae44..96cd0232e1e0 100644
--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -425,13 +425,12 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long esp,
 
         tsk = current;
         if (unlikely(test_tsk_thread_flag(tsk, TIF_IO_BITMAP))) {
-                p->thread.io_bitmap_ptr = kmalloc(IO_BITMAP_BYTES, GFP_KERNEL);
+                p->thread.io_bitmap_ptr = kmemdup(tsk->thread.io_bitmap_ptr,
+                                                IO_BITMAP_BYTES, GFP_KERNEL);
                 if (!p->thread.io_bitmap_ptr) {
                         p->thread.io_bitmap_max = 0;
                         return -ENOMEM;
                 }
-                memcpy(p->thread.io_bitmap_ptr, tsk->thread.io_bitmap_ptr,
-                        IO_BITMAP_BYTES);
                 set_tsk_thread_flag(p, TIF_IO_BITMAP);
         }