[PATCH] mounstats NULL pointer dereference

[safe/jmp/linux-2.6] / include / linux / nsproxy.h

diff --git a/include/linux/nsproxy.h b/include/linux/nsproxy.h
index f6baecd..971d1c6 100644 (file)
--- a/include/linux/nsproxy.h
+++ b/include/linux/nsproxy.h
@@ -45,8 +45,10 @@ static inline void exit_task_namespaces(struct task_struct *p)
 {
        struct nsproxy *ns = p->nsproxy;
        if (ns) {
-               put_nsproxy(ns);
+               task_lock(p);
                p->nsproxy = NULL;
+               task_unlock(p);
+               put_nsproxy(ns);
        }
 }
 #endif