1 files changed, 3 insertions, 1 deletions

diff --git a/kernel/futex_compat.c b/kernel/futex_compat.c
index 2c2e2954b713..cc098e1de960 100644
--- a/kernel/futex_compat.c
+++ b/kernel/futex_compat.c
@@ -8,6 +8,7 @@
 
 #include <linux/linkage.h>
 #include <linux/compat.h>
+#include <linux/nsproxy.h>
 #include <linux/futex.h>
 
 #include <asm/uaccess.h>
@@ -124,7 +125,8 @@ compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
 
                 ret = -ESRCH;
                 read_lock(&tasklist_lock);
-                p = find_task_by_pid(pid);
+                p = find_task_by_pid_ns(pid,
+                                current->nsproxy->pid_ns);
                 if (!p)
                         goto err_unlock;
                 ret = -EPERM;