Re: [PATCH] mm: memcg: fix use after free in mem_cgroup_iter()

2018-07-24 Thread Michal Hocko
On Mon 23-07-18 09:17:28, Shakeel Butt wrote: > On Sun, Jul 22, 2018 at 11:44 PM Michal Hocko wrote: > > > > On Thu 19-07-18 09:23:10, Shakeel Butt wrote: > > > On Thu, Jul 19, 2018 at 3:43 AM Michal Hocko wrote: > > > > > > > > [CC Andrew] > > > > > > > > On Thu 19-07-18 18:06:47, Jing Xia wrote

Re: [PATCH] mm: memcg: fix use after free in mem_cgroup_iter()

2018-07-23 Thread Shakeel Butt
On Sun, Jul 22, 2018 at 11:44 PM Michal Hocko wrote: > > On Thu 19-07-18 09:23:10, Shakeel Butt wrote: > > On Thu, Jul 19, 2018 at 3:43 AM Michal Hocko wrote: > > > > > > [CC Andrew] > > > > > > On Thu 19-07-18 18:06:47, Jing Xia wrote: > > > > It was reported that a kernel crash happened in mem_

Re: [PATCH] mm: memcg: fix use after free in mem_cgroup_iter()

2018-07-22 Thread Michal Hocko
On Thu 19-07-18 09:23:10, Shakeel Butt wrote: > On Thu, Jul 19, 2018 at 3:43 AM Michal Hocko wrote: > > > > [CC Andrew] > > > > On Thu 19-07-18 18:06:47, Jing Xia wrote: > > > It was reported that a kernel crash happened in mem_cgroup_iter(), > > > which can be triggered if the legacy cgroup-v1 no

Re: [PATCH] mm: memcg: fix use after free in mem_cgroup_iter()

2018-07-19 Thread Shakeel Butt
On Thu, Jul 19, 2018 at 3:43 AM Michal Hocko wrote: > > [CC Andrew] > > On Thu 19-07-18 18:06:47, Jing Xia wrote: > > It was reported that a kernel crash happened in mem_cgroup_iter(), > > which can be triggered if the legacy cgroup-v1 non-hierarchical > > mode is used. > > > > Unable to handle ke

Re: [PATCH] mm: memcg: fix use after free in mem_cgroup_iter()

2018-07-19 Thread Michal Hocko
[CC Andrew] On Thu 19-07-18 18:06:47, Jing Xia wrote: > It was reported that a kernel crash happened in mem_cgroup_iter(), > which can be triggered if the legacy cgroup-v1 non-hierarchical > mode is used. > > Unable to handle kernel paging request at virtual address 6b6b6b6b6b6b8f > .. > Call

[PATCH] mm: memcg: fix use after free in mem_cgroup_iter()

2018-07-19 Thread Jing Xia
It was reported that a kernel crash happened in mem_cgroup_iter(), which can be triggered if the legacy cgroup-v1 non-hierarchical mode is used. Unable to handle kernel paging request at virtual address 6b6b6b6b6b6b8f .. Call trace: mem_cgroup_iter+0x2e0/0x6d4 shrink_zone+0x8c/0x324 bala