Re: [PATCH v4 1/4] device-dax: Don't leak kernel memory to user space after unloading kmem

2020-05-08 Thread David Hildenbrand
> Am 09.05.2020 um 01:53 schrieb Andrew Morton : > > On Fri, 8 May 2020 10:42:14 +0200 David Hildenbrand > wrote: > >> Assume we have kmem configured and loaded: >> [root@localhost ~]# cat /proc/iomem >> ... >> 14000-33fff : Persistent Memory$ >>14000-1481f : namespa

Re: [PATCH v4 1/4] device-dax: Don't leak kernel memory to user space after unloading kmem

2020-05-08 Thread Andrew Morton
On Fri, 8 May 2020 10:42:14 +0200 David Hildenbrand wrote: > Assume we have kmem configured and loaded: > [root@localhost ~]# cat /proc/iomem > ... > 14000-33fff : Persistent Memory$ > 14000-1481f : namespace0.0 > 15000-33fff : dax0.0 > 15000-33fff

[PATCH v4 1/4] device-dax: Don't leak kernel memory to user space after unloading kmem

2020-05-08 Thread David Hildenbrand
Assume we have kmem configured and loaded: [root@localhost ~]# cat /proc/iomem ... 14000-33fff : Persistent Memory$ 14000-1481f : namespace0.0 15000-33fff : dax0.0 15000-33fff : System RAM Assume we try to unload kmem. This force-unloading will w