shm: apply shm area permissions to shmpipe control socket

Apply shared memory area permissions to the control socket (more
precisely, the path it is bound to) as well.

https://bugzilla.gnome.org/show_bug.cgi?id=682775

1 files changed, 6 insertions, 0 deletions

diff --git a/sys/shm/shmpipe.c b/sys/shm/shmpipe.c
index 4da027b72..e1863edc4 100644
--- a/sys/shm/shmpipe.c
+++ b/sys/shm/shmpipe.c
@@ -235,6 +235,10 @@ sp_writer_create (const char *path, size_t size, mode_t perms)
 
   self->socket_path = strdup (sock_un.sun_path);
 
+  if (chmod (self->socket_path, perms) < 0)
+    RETURN_ERROR ("failed to set socket permissions (%d): %s\n", errno,
+        strerror (errno));
+
   if (listen (self->main_socket, LISTEN_BACKLOG) < 0)
     RETURN_ERROR ("listen() failed (%d): %s\n", errno, strerror (errno));
 
@@ -445,6 +449,8 @@ sp_writer_setperms_shm (ShmPipe * self, mode_t perms)
   for (area = self->shm_area; area; area = area->next)
     ret |= fchmod (area->shm_fd, perms);
 
+  ret |= chmod (self->socket_path, perms);
+
   return ret;
 }