Merge tag 'regulator-fix-v4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git...

[cascardo/linux.git] / fs / proc / array.c

diff --git a/fs/proc/array.c b/fs/proc/array.c
index 89600fd..81818ad 100644 (file)
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -412,10 +412,11 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
        mm = get_task_mm(task);
        if (mm) {
                vsize = task_vsize(mm);
-               if (permitted) {
-                       eip = KSTK_EIP(task);
-                       esp = KSTK_ESP(task);
-               }
+               /*
+                * esp and eip are intentionally zeroed out.  There is no
+                * non-racy way to read them without freezing the task.
+                * Programs that need reliable values can use ptrace(2).
+                */
        }
 
        get_task_comm(tcomm, task);