1 files changed, 3 insertions, 2 deletions

diff --git a/fs/exec.c b/fs/exec.c
index cd2e8c9b1249..e347e6ed1617 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1574,11 +1574,12 @@ static inline int zap_threads(struct task_struct *tsk, struct mm_struct *mm,
         for_each_process(g) {
                 if (g == tsk->group_leader)
                         continue;
-
+                if (g->flags & PF_KTHREAD)
+                        continue;
                 p = g;
                 do {
                         if (p->mm) {
-                                if (p->mm == mm) {
+                                if (unlikely(p->mm == mm)) {
                                         lock_task_sighand(p, &flags);
                                         zap_process(p);
                                         unlock_task_sighand(p, &flags);