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-rw-r--r--fs/proc/root.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/proc/root.c b/fs/proc/root.c
index 2633f10446c3..cdbe9293ea55 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -196,6 +196,13 @@ static void proc_kill_sb(struct super_block *sb)
if (ns->proc_thread_self)
dput(ns->proc_thread_self);
kill_anon_super(sb);
+
+ /* Make the pid namespace safe for the next mount of proc */
+ ns->proc_self = NULL;
+ ns->proc_thread_self = NULL;
+ ns->pid_gid = GLOBAL_ROOT_GID;
+ ns->hide_pid = 0;
+
put_pid_ns(ns);
}