On Tue, Oct 27, 2015 at 05:45:04PM +0900, Tejun Heo wrote: > css_task_iter_next() checked @it->cur_task before grabbing > css_set_lock and assumed that the result won't change afterwards; > however, tasks could leave the cgroup being iterated terminating the > iterator before css_task_lock is acquired. If this happens, > css_task_iter_next() tries to calculate the current task from NULL > cg_list pointer leading to the following oops. Applied to cgroup/for-4.4. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html