On 10/25, Oleg Nesterov wrote: > > As I said below, please ignore ptracer_exception_found(), another caller for > now, > perhaps it needs some changes too. I even have a vague feeling that I have > already > blamed this function some time ago...
Heh, yes, 3 years ago ;) https://lore.kernel.org/lkml/20150106184427.ga18...@redhat.com/ I can't understand my email today, but note that I tried to point out that task_is_descendant() can dereference the freed mem. And yes, task_is_descendant() is overcompicated for no reason, afaics. Oleg.