ipc: shm: fix information leak to userland

[lisovros/linux_canprio.git] / ipc / shm.c

diff --git a/ipc/shm.c b/ipc/shm.c
index 52ed77eb9713a932804cc8bb2b430ce4cdff4750..b427380671465b74c8367d3d8d285697b98d3e16 100644 (file)
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -473,6 +473,7 @@ static inline unsigned long copy_shmid_to_user(void __user *buf, struct shmid64_
            {
                struct shmid_ds out;
 
+               memset(&out, 0, sizeof(out));
                ipc64_perm_to_ipc_perm(&in->shm_perm, &out.shm_perm);
                out.shm_segsz   = in->shm_segsz;
                out.shm_atime   = in->shm_atime;