1 files changed, 3 insertions, 2 deletions

diff --git a/kernel/sys.c b/kernel/sys.c
index 265b37690421..24d1ef56cd95 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -433,11 +433,12 @@ static DEFINE_MUTEX(reboot_mutex);
 SYSCALL_DEFINE4(reboot, int, magic1, int, magic2, unsigned int, cmd,
                 void __user *, arg)
 {
+        struct pid_namespace *pid_ns = task_active_pid_ns(current);
         char buffer[256];
         int ret = 0;
 
         /* We only trust the superuser with rebooting the system. */
-        if (!capable(CAP_SYS_BOOT))
+        if (!ns_capable(pid_ns->user_ns, CAP_SYS_BOOT))
                 return -EPERM;
 
         /* For safety, we require "magic" arguments. */
@@ -453,7 +454,7 @@ SYSCALL_DEFINE4(reboot, int, magic1, int, magic2, unsigned int, cmd,
          * pid_namespace, the command is handled by reboot_pid_ns() which will
          * call do_exit().
          */
-        ret = reboot_pid_ns(task_active_pid_ns(current), cmd);
+        ret = reboot_pid_ns(pid_ns, cmd);
         if (ret)
                 return ret;