1 files changed, 3 insertions, 1 deletions

diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c
index 9e1a8a7ba6e6..7a3d4df9eaf6 100644
--- a/arch/x86/kernel/xsave.c
+++ b/arch/x86/kernel/xsave.c
@@ -176,8 +176,10 @@ int save_i387_xstate(void __user *buf)
                 else
                         err = fxsave_user(buf);
 
-                if (err)
+                if (unlikely(err)) {
+                        __clear_user(buf, xstate_size);
                         return err;
+                }
                 user_fpu_end();
         } else {
                 sanitize_i387_state(tsk);