1 files changed, 2 insertions, 1 deletions

diff --git a/kernel/exit.c b/kernel/exit.c
index 84dc4b294e47..eabca5a73a85 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -952,7 +952,8 @@ NORET_TYPE void do_exit(long code)
 
         acct_update_integrals(tsk);
         /* sync mm's RSS info before statistics gathering */
-        sync_mm_rss(tsk, tsk->mm);
+        if (tsk->mm)
+                sync_mm_rss(tsk, tsk->mm);
         group_dead = atomic_dec_and_test(&tsk->signal->live);
         if (group_dead) {
                 hrtimer_cancel(&tsk->signal->real_timer);