1 files changed, 1 insertions, 1 deletions

diff --git a/include/asm-s390/signal.h b/include/asm-s390/signal.h
index 3d6e11c6c1fd..7084626de215 100644
--- a/include/asm-s390/signal.h
+++ b/include/asm-s390/signal.h
@@ -165,7 +165,7 @@ struct sigaction {
 #endif /* __KERNEL__ */
 
 typedef struct sigaltstack {
-        void *ss_sp;
+        void __user *ss_sp;
         int ss_flags;
         size_t ss_size;
 } stack_t;